Open source game developers (J)

J

Developed game: TIC-80

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J Williams

Developed game: FlightGear

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j-jorge

Developed games: COCOS2D-X, Plee the Bear

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J-M Le Peuvedic

Developed game: GL-117

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j-p-e-g

Developed game: NLarn

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j-palomo

Developed games: GZDoom, ZDoom

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J-VdS

Developed game: Mindustry

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j-vds

Developed game: Mindustry

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J. Ali Harlow

Developed game: SLASH'EM

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J. Applegate

Developed game: Nuvie

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J. Cooper

Developed game: Forge

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J. Edward Sanchez

Developed game: OGRE

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J. Hunter Johnson

Developed game: PCGen

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J. Nathan Matias

Developed game: PLIB

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J. Neuschäfer

Developed games: Freeminer, Minetest

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J. S.

Developed game: Vega Strike

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J. W. Bjerk

Developed game: The Battle for Wesnoth

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J.C

Developed game: Phaser

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J.M. de Jong

Developed game: Unknown Horizons

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J.W

Developed game: Iter Vehemens ad Necem

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Ja-MiT

Developed game: The Battle for Wesnoth

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Jaakko Keränen

Developed game: Doomsday Engine

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Jaakko Niemi

Developed game: Crossfire

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Jaakko Perttilä

Developed game: Performous

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Jaakko Tapani Peltonen

Developed game: Falcon's Eye

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Jaanus Varus

Developed game: Penumbra

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Jacek Nakonieczny

Developed game: Cataclysm: Dark Days Ahead

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Jack

Developed game: Vega Strike

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jack

Developed game: Godot

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Jack Andersen

Developed game: Metaforce

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Jack Bohlen

Developed game: Phantasy Star Rebirth

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Jack Boswell

Developed game: osu!

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Jack Coulter

Developed game: Openfrag

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Jack Cummings

Developed game: WorldForge

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Jack Dolabany

Developed game: MonoGame

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Jack Edge

Developed game: Space Station 13

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Jack Greiner

Developed game: Naev

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Jack Kawell

Developed game: Darkflame Universe

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Jack Lee

Developed game: osu!

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Jack McPherson

Developed game: LimonEngine

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Jack Morgan

Developed game: MegaMek

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Jack Rainy

Developed game: Unciv

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Jack Scotson

Developed game: osu!

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Jack Slater

Developed games: ioquake3, OpenArena Engine, Tremulous

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jack-the-BOSS

Developed game: XMage

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Jacker

Developed game: ET: Legacy

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Jackerty

Developed games: OpenMW, TES3MP

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JackLee9355

Developed game: osu!

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jackpotttt

Developed game: unitystation

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Jackraxxus

Developed game: Space Station 13

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Jackson Davis

Developed game: OpenRCT2

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jacksonmj

Developed game: The Powder Toy

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JackStorm448

Developed game: Naev

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Jacky Liang

Developed game: RuneLite

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Jacky720

Developed game: UndertaleModTool

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Jaco

Developed games: CorsixTH, OpenXcom

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Jacob

Developed game: osu!

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Jacob Anderson

Developed game: MonoGame

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jacob berkman

Developed game: Aisleriot

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Jacob Burroughs

Developed game: SuperTux

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Jacob Deuchar

Developed game: Open Apocalypse

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Jacob Dufault

Developed game: OpenRA

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Jacob Essex

Developed games: OpenMW, TES3MP

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Jacob Ferrero

Developed games: Freeminer, Minetest

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Jacob L. Anawalt

Developed game: Batalla Naval

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Jacob McElroy

Developed game: RuneLite

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Jacob Nevins

Developed games: Freeciv, Simon Tatham's Portable Puzzle Collection

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Jacob Odgård Tørring

Developed game: osu!

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Jacob Rask

Developed game: Freeciv-web

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Jacob Sweeten

Developed game: unitystation

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jacob1

Developed game: The Powder Toy

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Jacopo Santoni

Developed game: OpenMoM

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Jacquerel

Developed game: Space Station 13

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Jacques Beaurain

Developed game: UPBGE

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Jacques Chion

Developed game: Tux Paint

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Jacques Lucke

Developed game: UPBGE

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Jade Macho

Developed game: Simple DirectMedia Layer

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jadebenn

Developed game: Darkflame Universe

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Jaden LeMieux

Developed game: Freedoom

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Jae Edeen

Developed game: excalibur

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Jae Yeum

Developed games: NBlood, PCExhumed, Rednukem

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Jae-Hong Lee

Developed game: COCOS2D-X

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Jaedan

Developed game: ClassicUO

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jafdy

Developed game: Endless Sky

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Jagget

Developed game: Daggerfall Unity

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JagWire

Developed game: Vircadia

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Jai Sharma

Developed game: osu!

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Jaime Passos

Developed game: Sonic Robo Blast 2

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Jaime van Kessel

Developed game: EmptyEpsilon

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Jairo

Developed game: DNT

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jaj22

Developed game: Pioneer

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Jak Daniels

Developed game: Open Simulator

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Jak1

Developed game: The Mana World

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Jaka Kranjc

Developed games: GemRB, Jagged Alliance 2 Stracciatella

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Jake

Developed game: OpenDominion

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Jake Archibald

Developed game: proxx

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Jake Bailey

Developed game: pygame

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Jake Brown

Developed game: CivOne

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Jake Kirkbride

Developed game: MonoGame

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Jake Poznanski

Developed game: MonoGame

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jakexblaster (Marcos Cunha)

Developed game: Open Tibia

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Jakim Friant

Developed game: AutoREALM

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Jakob Fries

Developed games: DDraceNetwork, Teeworlds

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Jakob Mulvad Nielsen

Developed game: CivOne

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Jakob Sinclair

Developed games: Godot, Sourcehold

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Jakub Friedl

Developed game: Tux Paint

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Jakub Janek

Developed game: Unknown Horizons

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Jakub Linhart

Developed games: ClassicUO, CrossUO

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Jakub Lukasik

Developed game: Lumix Engine

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Jakub Marcowski

Developed game: Godot

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Jakub Pavlík

Developed game: freeVikings

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Jakub Sandomierz

Developed game: Poland can into Space

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Jakub Vaněk

Developed games: Freeminer, Minetest, OpenBVE

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Jakub Šimek

Developed game: jMonkeyEngine

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jakubtomsu

Developed game: Dungeon of Quake

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jal76

Developed game: Spring: 1944

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jalbert-dev

Developed game: StepMania

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Jalleo

Developed game: Space Station 13

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Jalmari Ikävalko

Developed game: Beyond All Reason

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James

Developed games: A Dark Room, ClassicUO, Etterna, Godot, libGDX, OpenRCT2, osu!, Project Porcupine, Race Into Space, unitystation

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James 'J.C.' Jones

Developed game: PLIB

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James A. Simons

Developed game: Wolfpack Empire

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James Albert

Developed game: PyTMX

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James Allenby

Developed game: Inexor

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James Allred

Developed game: MegaMek

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James Archbold

Developed game: Ancient Beast

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James B. Pollack

Developed game: Vircadia

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James B. Pollack, MFA

Developed game: Vircadia

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James Barnard

Developed game: Tux Racer

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James Broad

Developed game: Wargamer

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James Cameron

Developed game: Netrek

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James Canete

Developed games: Chocolate Doom, Freeciv, ioquake3, iortcw, OpenArena Engine, Tremulous

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James Carthew

Developed games: Privateer - Gemini Gold, Vega Strike

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James Carty

Developed games: OpenMW, TES3MP

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James Czekaj

Developed game: pygame

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James Damour

Developed game: MegaMek

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James Game

Developed game: libGDX

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James Gangur

Developed game: Cataclysm: Dark Days Ahead

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James Gardner

Developed game: Thousand Parsec

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James Gregory

Developed game: COCOS2D-X

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James Guillochon

Developed game: Endless Sky

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James Hale

Developed game: Sonic Robo Blast 2

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James Haley

Developed game: Chocolate Doom

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James Haley (Nightdive Studios)

Developed games: Chocolate Doom, Strife: Veteran Edition, The Eternity Engine

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James Hodgson

Developed game: OpenDominion

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James Hofmann

Developed game: Iceball

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James Hood

Developed game: Simutrans

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James Jurach

Developed game: libGDX

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James Khan

Developed game: jMonkeyEngine

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James Le Cuirot

Developed games: Commander Genius, freegish, SLADE

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James Likier

Developed game: Manic Digger

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James M Best

Developed game: WorldForge

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James Marshall

Developed game: Cat Mother Dead Justice

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James Meickle

Developed game: Dungeon Crawl Stone Soup

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James Mintram

Developed game: Godot

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James Neal

Developed game: RogueSharp

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James Packer

Developed game: Bridge Command

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James Paige

Developed games: O.H.R.RPG.C.E., Ren'Py

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James R.

Developed games: Sonic Robo Blast 2, SRB2Kart

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James Russell

Developed game: CorsixTH

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James Sherratt

Developed game: MegaGlest

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James Simonson

Developed game: unitystation

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James Simpson

Developed game: Isogenic Game Engine

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James Stone

Developed game: GL-117

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James Turner

Developed games: FlightGear, WorldForge

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James Urquhart

Developed games: Terminal Overload, Torque 2D, Torque 3D

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James Wallen-Jones

Developed game: Open RSC

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James Watkins-Harvey

Developed game: LÖVE

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James Webb

Developed game: Lumix Engine

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James Westman

Developed game: Godot

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James Wilson

Developed game: osu!

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james4k

Developed game: OpenFL

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James58899

Developed game: osu!

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JamesGai

Developed game: Vircadia

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Jamie

Developed game: OpenFL

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Jamie Taylor

Developed game: osu!

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JamieFristrom

Developed game: LambdaHack

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Jamieson Berida

Developed game: osu!

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Jamil Akram

Developed game: Vircadia

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Jamin Collins

Developed game: Forge

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jamrenaissance

Developed game: PCGen

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Jamuro-g

Developed game: Cataclysm: Dark Days Ahead

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Jan

Developed games: NBlood, PCExhumed, Rednukem, SLADE, Thrive, Tremulous

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Jan Adamec

Developed game: Castle Game Engine

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Jan Beich

Developed games: OpenBOR, OpenRA, rlvm

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Jan Boon

Developed game: Ryzom Core

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Jan Borsodi

Developed games: OpenMW, TES3MP

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Jan Ekholm

Developed game: Civil

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Jan Engelhardt

Developed games: Chocolate Doom, GZDoom, SLADE, ZDoom

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Jan Friederich

Developed game: Mmpong

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Jan Haller

Developed games: Godot, Simple and Fast Multimedia Library

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Jan Jurzitza

Developed game: osu!

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Jan Korbel

Developed game: Simutrans

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Jan Krassnigg

Developed game: ezEngine

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Jan Kyselica

Developed game: Aisleriot

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Jan Lukas Gernert

Developed game: REGoth

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Jan Magne Tjensvold

Developed game: Stars! Nova

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Jan Mattner

Developed games: Ilarion, Illarion

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Jan Mulder

Developed games: Pendumito, WebHangman

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Jan Petykiewicz

Developed game: GemRB

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Jan Polák

Developed games: libGDX, Mindustry

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Jan Raszyk

Developed game: ezQuake

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Jan Rietema

Developed games: SilverTree, The Battle for Wesnoth

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Jan Schäfer

Developed game: JSkat

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Jan Urva

Developed game: phpRPG

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Jan Wynholds

Developed game: Tux Paint

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Jan Šimek

Developed games: Classic RBDoom 3 BFG, ET: Legacy, Fallout 2 Community Edition, Falltergeist, RBDOOM-3-BFG, Shadowgrounds

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Jan-Hendrik Peters

Developed game: Arx Libertatis

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Jan-Otto Kröpke

Developed game: 2Moons Browsergame Engine

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Jan-Peter Nilsson

Developed games: OpenMW, TES3MP

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Jana Mohn

Developed game: OpenSAGE

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Jana Weigel

Developed game: Unknown Horizons

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Janaszar

Developed game: Endless Sky

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Janet Hunt

Developed game: FreeLords

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Janet Walz

Developed game: NetHack

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JanetHunt

Developed game: Flare

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JanFokke

Developed game: MonoGame.Extended

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Jani Kajala

Developed game: Cat Mother Dead Justice

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Jani Mäkinen

Developed game: Unvanquished

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Janis Eisaks

Developed game: Sudokuki

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janKir

Developed game: boardgame.io

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Janne

Developed game: Ancient Beast

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Janne Johansson

Developed game: Haxima

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Janne Karhu

Developed game: UPBGE

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Janne Sinivirta

Developed game: AndEngine

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Jannik Vogel

Developed games: OpenRW, OpenSWE1R

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JANNiS

Developed game: Skrupel - Tribute Compilation

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Jannis Weis

Developed game: LITIENGINE

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jao

Developed game: DDraceNetwork

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Jared

Developed game: Snowballz

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Jared Adams

Developed games: Land of Fire, Mana, The Mana World

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Jared Miller

Developed game: Duality

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Jared Stephen

Developed game: Hale

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Jarek Lewandowski

Developed game: COCOS2D-X

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Jarewill

Developed game: Cataclysm: Dark Days Ahead

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JarheadHME

Developed game: Wind Waker Randomizer

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Jari

Developed game: Open Apocalypse

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Jari Karjala

Developed game: StarMines: The Next Generation

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Jari Winberg

Developed game: Simple-Solitaire

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JarnoNL79

Developed game: Return to the Roots

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Jaro Vanderheijden

Developed game: Phaser

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Jaromír Wysoglad

Developed game: ScummVM

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Jaroslav Benkovský

Developed game: GemRB

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Jaroslaw Wisniewski

Developed game: libGDX

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Jarosław Zgierski

Developed game: osu!

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Jarrett Thomas

Developed game: Land of Fire

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Jarrod L. Miller

Developed game: XPilot

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Jarrod Mosen

Developed game: Box2D

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Jarvik7

Developed game: Yamagi Quake II

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jaselito

Developed game: Project Porcupine

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Jasmin Patry

Developed game: Tux Racer

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Jasmine Kent

Developed game: Trigger Rally

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Jasmine Langridge

Developed game: Trigger Rally

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Jason

Developed games: boardgame.io, PCGen, Wargamer

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jason

Developed game: Gang Garrison 2

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Jason Benaim

Developed game: Chocolate Doom

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Jason Buchanan

Developed game: PCGen

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Jason Bush

Developed game: MegaMek

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Jason D. Clinton

Developed game: Aisleriot

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Jason Dorje Short

Developed game: Freeciv

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Jason E. Wall

Developed game: XMage

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Jason Farmer

Developed game: Siege of Avalon : Open Source

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Jason Felds

Developed games: Etterna, StepMania

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Jason Fields

Developed game: Cataclysm: Dark Days Ahead

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Jason Gilbert

Developed games: Cataclysm: Dark Days Ahead, OpenXcom

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Jason Hancock

Developed game: Panda3D

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Jason Harrison

Developed game: boardgame.io

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Jason Hawks

Developed game: Vircadia

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Jason Hooks

Developed games: OpenMW, TES3MP

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Jason Johnson

Developed game: Dune Legacy

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Jason Jones

Developed game: Cataclysm: Dark Days Ahead

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Jason Klapste

Developed game: Rails: an 18xx game system

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Jason Knight

Developed game: Godot

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Jason Kwok

Developed game: Phaser

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Jason Leonard

Developed game: Librelancer

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Jason M Carlough

Developed game: DOOM Retro

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Jason Nunn

Developed game: Nighthawk

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Jason Rohrer

Developed games: Between, Cultivation, Gravitation, One Hour One Life, Passage, Primrose, Sleep Is Death, Transcend

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Jason Smestad

Developed game: Valyria Tear

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Jason Smyrloglou

Developed game: MegaMek

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Jason Summers

Developed game: Golly

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Jason Tamez

Developed game: PCGen

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Jason Tighe

Developed games: MegaMek, MekWars

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Jason Wall

Developed game: XMage

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Jason Walsh

Developed game: StepMania

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Jason Winzenried

Developed game: Vega Strike

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Jason Won

Developed game: osu!

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Jason Wood

Developed game: Tux Football

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Jason Xu

Developed game: COCOS2D-X

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Jason Yates

Developed game: Aleph One

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jasonhays

Developed game: UPBGE

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Jasper De Sutter

Developed game: MonoGame.Extended

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Jasper Spaans

Developed game: PCGen

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Jasper v. B.

Developed game: openage

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Jasper Van der Jeugt

Developed game: Annchienta

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jastiv

Developed game: Wograld

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Jat15

Developed game: Minetest Game

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Javier A. Ortiz Bultron

Developed games: JaNaG - Java Name Generator, PCGen

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Javier Arevalo

Developed game: Phaser

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Javier Ayres

Developed game: Lona

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Javier de las Rivas

Developed game: SDLPoP

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Javier Jardón

Developed games: Aisleriot, Atomix, xoreos

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Javier Marín

Developed game: SharpKonquest

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Javier Torrente

Developed game: eAdventure

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javila

Developed game: Land of Fire

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JaxLin

Developed game: KlayGE

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Jay Atkinson

Developed game: OpenXcom

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jay binks

Developed game: UltraStar Deluxe

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Jay Fenlason

Developed game: Hack

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Jay French

Developed game: Space Trader for Windows

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Jay Kint

Developed game: Omega-rpg

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Jay Lawton

Developed game: osu!

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Jay Oster

Developed game: melonJS

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Jay Peet

Developed game: R.E.L.I.V.E.

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Jay Sistar

Developed games: Atomic Game Engine, OpenFL

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jay wellings

Developed game: Mpango

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Jay_H

Developed game: Daggerfall Unity

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Jayden

Developed game: osu!

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JayH2971

Developed game: Daggerfall Unity

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Jaylon Gowie

Developed game: Simple DirectMedia Layer

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Jayme Cox

Developed game: PCGen

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Jayna Wilkins

Developed game: UPBGE

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jaytersen

Developed game: Unvanquished

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JaytleBee

Developed game: unitystation

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Jazcash

Developed game: Beyond All Reason

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Jazmin

Developed game: Vircadia

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jazz mickle

Developed game: DelverEngine

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jazztickets

Developed games: Choria, Empty Clip, irrlamb

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jazzvaz

Developed game: OpenXRay

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jbakker-atmind

Developed game: UPBGE

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Jbaukens

Developed game: 2Moons Browsergame Engine

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jbeshir

Developed game: MonoGame

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jbot-42

Developed game: The Powder Toy

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jbuck3

Developed game: Godot

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JC Snider

Developed game: Intersect

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jcaesar

Developed game: OpenClonk

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jcd000

Developed game: Cataclysm: Dark Days Ahead

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jcnossen

Developed game: Spring

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jcreusand

Developed game: Freeciv

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jdah

Developed game: minecraft-weekend

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JDarthenay

Developed game: OpenXcom

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jdeblander

Developed game: LITIENGINE

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jdempsey-au

Developed game: PCGen

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jdgleaver

Developed game: TyrQuake

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jdh

Developed game: minecraft-weekend

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jdigreze

Developed game: Unknown Horizons

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jdrueckert

Developed game: Terasology

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Jean Jung

Developed game: Godot

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Jean Karim Bockstael

Developed game: MicroWar 2.0

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Jean Lepropre

Developed game: FreeCol

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Jean Luc PONS

Developed game: BlockOut II

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Jean Moreno

Developed game: UltraStar Play

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jean pellotier

Developed game: FlightGear

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Jean-Baptiste "Jiba" Lamy

Developed game: Slune
Organization: Nekeme Prod.

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Jean-Baptiste Onofré

Developed game: XMage

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Jean-Christophe Collet

Developed game: NetHack

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Jean-Claude Monnin

Developed game: Horde3D

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Jean-David Moisan

Developed game: Apos.Gui

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Jean-Denis Boivin

Developed game: OpenFL

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Jean-Francois Renaud

Developed game: jMonkeyEngine

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Jean-Francois Romang

Developed game: Stockfish

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Jean-François Fabre

Developed game: Gods Deluxe

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jean-manuel clemençon

Developed game: SuperTuxKart

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Jean-Marc Le Peuvedic

Developed game: GL-117

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Jean-Martin Miljours

Developed game: CrossUO

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Jean-Michel Baudrey

Developed game: Duckmaze

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Jean-Michel Bernard

Developed game: Godot

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Jean-Michel Martin de Santero

Developed games: Powermanga, TecnoballZ

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Jean-Patrick Guerrero

Developed games: Freeminer, Minetest, Minetest Game

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Jean-Philippe Meuret

Developed game: Speed Dreams

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Jean-Pierre Sabbagh

Developed game: ENIGMA (development environment)

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Jean-Sébastien B.

Developed game: libGDX

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Jean-Vivien Maurice

Developed game: Extreme Tux Racer

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Jeannette Bilton

Developed game: Freya Game Engine

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Jeb Collins

Developed game: Godot

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JeeZ

Developed game: Spring

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Jeff

Developed games: DelverEngine, Seven Kingdoms: Ancient Adversaries

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Jeff Baril

Developed game: PCGen

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Jeff Breidenbach

Developed game: Pioneers

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Jeff Clinton

Developed game: Vircadia

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Jeff Cotter

Developed game: Wolfpack Empire

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Jeff Coyle

Developed game: VASSAL

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Jeff Freedman

Developed game: Exult

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Jeff Goodenough

Developed game: Daimonin

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Jeff Graw

Developed game: Vega Strike

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Jeff Harris

Developed game: Dethrace

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Jeff Huang

Developed games: Freeminer, Minetest

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Jeff Hutchinson

Developed game: Torque 3D

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Jeff Koerner

Developed game: Pizza Business

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Jeff Makey

Developed game: BZFlag

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Jeff Nowakowski

Developed game: Netrek

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Jeff Thoene

Developed game: Shotgun Debugger
Organization: Game Creation Society

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Jeff Vogel

Developed game: Classic Blades of Exile
Organization: Spiderweb Software

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Jeff Wadsworth

Developed game: XMage

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Jeff Wang

Developed games: COCOS2D-X, MegaMek

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jeff-kelley

Developed game: Open Simulator

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Jefferson Montgomery

Developed game: Dear ImGui

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Jeffery Myers

Developed games: BZFlag, raylib

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Jeffrey Haines

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Jeffrey Han

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Jeffrey Lucas Eldridge

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Developed game: LBA2 Remake

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Jeffrey Ventrella

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jekin trivedi

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jekyllgrim

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Jenna Trassa

Developed game: FreeSpace 2 Source Code Project

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jennaingersoll

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Jens A. Koch

Developed game: FIFE

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Jeongin Lee

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jepael

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Jerek Wilson

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Jeremiah Morris

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Jeremy Parsons

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Jeremy Plsek

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Jeremy Reeves

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Jeremy Rose

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Jerimee Richir

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Jeroen Baert

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Jeroen Groeneweg

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Jeroen Sack

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JEROME BIGOT

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Jerome Marty

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Jerome Touffe-Blin

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Jerrad Bieno

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Jerry

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Jerry Jiang

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Jerzozwierz

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Jesper Sørensen

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Jesse

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Jesse Jaara

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Jesse Jennings

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Jesse Johnson

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Jesse Luehrs

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Jesse Manning

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Jesse Myers

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Jesse Nerio

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Jesse Ruderman

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Jesse Serrao

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Jesse Simko

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Jesse Smith

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Jesse Talavera

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Jesse Yurkovich

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Jessica Beller

Developed games: Land of Fire, Source of Tales

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Jessica Hawkwell

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Jessica Lord

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Jessica Meng

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Jessie Grosen

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JesterX666

Developed game: unitystation

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Jesusalva

Developed game: The Mana World

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Jesusaves

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Developed game: XMage

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Jetro Lauha

Developed game: Pathogen Warrior

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jetrotal

Developed game: EasyRPG Player

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Jett

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JFonS

Developed game: Godot

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jgelderloos

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jgorterrubicon

Developed game: LBA2 Remake

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jguyton

Developed game: Vega Strike

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jh

Developed game: Return to the Roots

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jhautio

Developed game: Widelands

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Jialong Zhai

Developed game: COCOS2D-X

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jianglong

Developed game: COCOS2D-X

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jianglong-zz

Developed game: COCOS2D-X

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Jianxiang Wang (王健翔)

Developed game: Cataclysm: Dark Days Ahead

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Developed game: unitystation

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Jiddo

Developed game: Open Tibia

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JieLe Tian

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Jihed Kallel

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Jihoon

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Jihoon Yang

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Jiiniasu

Developed game: Vocaluxe

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Jill

Developed game: BAB BE U

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jill

Developed game: BAB BE U

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Jim

Developed game: OpenRCT2

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Jim Armstrong

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Jim Cameron

Developed game: Underworld Adventures

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Jim Cotugno

Developed game: VASSAL

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Jim Duchek

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Jim Gilloghy

Developed game: Colossal Cave Adventure

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Jim Huang

Developed game: GBDK

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Jim Kindley

Developed game: LaserTank

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Jim Marsden

Developed game: Simple and Fast Multimedia Library

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Jim Schultz

Developed games: Greenius' Civil War, Wargamer

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Jim Tilander

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Jim Urbas

Developed game: VASSAL

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Jim Valavanis

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Jim Zhou

Developed game: RPG Tactical Fantasy Game

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Jimb Esser

Developed game: Simple DirectMedia Layer

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JimB16

Developed game: Twine

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JimMarlowe

Developed game: Atomic Game Engine

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Jimmy

Developed games: COCOS2D-X, OldSkool Gravity Game, SDL-Ball, Wizznic!

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Jimmy Berry

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Jimmy Christensen

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Jimmy Delas

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Jimmy Salmon

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jimmyl

Developed game: Space Station 13

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Jin XIA

Developed game: Terasology

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jinchuan ma

Developed game: Godot Card Game Framework

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Jindrich kolman

Developed game: Machinations

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Jindřich Dítě

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Jiri Daněk

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Jiří Bobrek

Developed game: Train

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Jiří Kuneš

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Jiří Moravec

Developed game: Seven Kingdoms: Ancient Adversaries

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Jiří Paleček

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Jiří Zárevúcky

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jjonj

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jjustra

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JK Wood

Developed game: FreedroidRPG

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jk3064

Developed game: Spring

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jkachhad

Developed game: ClassicUO

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Developed game: Settlers III remake

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jklw

Developed game: Zero-K

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jkraybill

Developed game: Cataclysm: Dark Days Ahead

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jlanderson80

Developed game: Remnants of the Precursors

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jlin14

Developed game: XMage

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jluech

Developed game: LITIENGINE

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jmbjr

Developed game: Dungeon Crawl Stone Soup

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JMcKiern

Developed game: OpenTTD

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jmf

Developed game: Pioneer

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jmgrosen

Developed game: Vircadia

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jmharmon

Developed game: XMage

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jmhorjus

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jmimu

Developed game: Free in the Dark (engine)

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jmorton06

Developed game: Lumos Engine

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jmryan64

Developed game: Terasology

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jnecus

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Developed game: Mindustry

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Jo

Developed game: DwarfCorp

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Jo Emil Holen

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Joachim Breitner

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Developed game: UltraStar Deluxe

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Joakim Berg

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Joakim L. Gilje

Developed game: Return to the Roots

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Joan Josep

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Joan Karadimov

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Joan Lung

Developed game: Space Station 13

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Joan Queralt

Developed game: Biogenesis

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Joan Queralt Molina

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Joaquin Gomez

Developed game: Rigs of Rods

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Job Talle

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JoBergeron

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jobi-wan

Developed game: Oolite

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Jocelyn Chaumel

Developed game: First Strike

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Jochen Voss

Developed game: Moon-buggy

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Jodwin

Developed game: Mocha Doom

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Joe

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Joe "Flame" Sullivan

Developed games: Eternal Lands, Other-Life

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Joe Doyle

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Joe Eagar

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Joe Farebrother

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Joe Flint

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Joe Hansen

Developed game: Tux Paint

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Joe Kennedy

Developed game: Odamex

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Joe Ludwig

Developed game: GoldenEye: Source

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Joe Lyon

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Joe Shochet

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Joe Stringer

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Joe Van Overberghe

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Joe Venzon

Developed game: VDrift

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Joe Wells

Developed game: PCGen

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Joe Williamson

Developed game: HaxeFlixel

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JoeClacks

Developed game: Terasology

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joehager

Developed game: Panda3D

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Joel Auterson

Developed game: halley

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Joel Bouchard Lamontagne

Developed game: Stringrolled

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Joel Croteau

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Joel Davis

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Joel de Vahl

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Joel Graff

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Joel Hedtjärn

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Joel Kreutzwieser

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Joel Linn

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Joel Stanley

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Joel Teichroeb

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Joel Uckelman

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Joerg Czeranski

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Joerg Kirchhoff

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Joerg Wissen

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Joey Bleau

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Joey L. Maalouf

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Joey Marshall

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Joey Parrish

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joffb

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Johan

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Johan Althoff

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Johan Dufour

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Johan Klokkhammer Helsing

Developed game: openage

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Johan Manuel

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Johan Mattsson

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Johan Peitz

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Johan Rehnberg

Developed game: Spring

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Johan Rensenbrink

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JohanJansen

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Johann Schopplich

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Johannes Bergmeier

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Johannes Brandt Nielsen

Developed games: Etterna, StepMania

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Johannes Danneker

Developed game: Minilens

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Johannes Doerfert

Developed game: Return to the Roots

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Johannes E

Developed game: PCGen

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Johannes Kadak

Developed game: The Powder Toy

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Johannes Maier

Developed game: Dungeon Crawl Stone Soup

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Johannes Neubauer

Developed game: chainreaction

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Johannes Prix

Developed game: FreedroidRPG

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Johannes Schneider

Developed game: Inexor

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Johannes Sjölund

Developed game: libGDX

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Johannes Walcher

Developed game: openage

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Johannes Witt

Developed game: Godot

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johannesrosenqvist

Developed game: Open Tibia

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John

Developed games: COCOS2D-X, CrossUO, OpenRCT2, Red Eclipse, VASSAL, XMage

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John _Scott_ Tillman

Developed game: WorldForge

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John Bartholomew

Developed game: Pioneer

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John Bates

Developed game: libGDX

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John Bauer

Developed game: StepMania

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John Biddle

Developed game: osu!

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John Blackburn

Developed game: Gideros

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John Bolton

Developed game: VCMI

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John Bytheway

Developed game: Cataclysm: Dark Days Ahead

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John C Barstow

Developed game: xoreos

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John C. Allwein

Developed game: libGDX

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John Candlebury

Developed game: Cataclysm: Dark Days Ahead

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John Cater

Developed game: Crossfire

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John Cheetham

Developed game: PyChess

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John Conklin II

Developed game: Vircadia

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John Cordell

Developed game: Privateer - Gemini Gold

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John Cote

Developed game: Panda3D

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John Curley

Developed game: OpenXRay

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John D. Corrado

Developed game: Odamex

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John D. Dilley

Developed game: Colonization too

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John Davis

Developed game: Monster Generator

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John Dean

Developed game: Morpheus Web Remake

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John Dodis

Developed game: OpenSolomonsKey

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John Dullea

Developed game: AutoREALM

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John Duquette

Developed game: Wargamer

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John Eikenberry

Developed game: Civil

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John Ericson

Developed games: Iceball, OpenSpades

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John F. Fay

Developed game: PLIB

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John Fernandez

Developed game: FreeSpace 2 Source Code Project

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John Gilbert

Developed game: Wargamer

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John Gray

Developed game: XMage

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John Hurliman

Developed game: Open Simulator

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John McIntosh

Developed game: 4D Maze Game

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John Neijzen

Developed game: osu!

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John Nesky

Developed game: Shotgun Debugger
Organization: Game Creation Society

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John Popplewell

Developed game: Tux Paint

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John R. Sheets

Developed game: WorldForge

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John Rowat

Developed game: MegaMek

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John S.

Developed game: PyKaraoke

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John Skoteiniotis

Developed game: Phaser

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John Smith

Developed game: Daimonin

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John Stahara

Developed game: Dungeon Crawl Stone Soup

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John Stilley

Developed game: Dungeon Crawl Stone Soup

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John Strömblom

Developed game: OpenDominion

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John Thickstun

Developed game: FIFE

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John Turner

Developed game: OpenRA

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John Törnblom

Developed game: DevilutionX

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John Wigg

Developed game: Godot

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John Willard

Developed game: Space Station 13

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John Yockey

Developed game: Wolfpack Empire

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John Zulauf

Developed game: Godot

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John-He-928

Developed game: COCOS2D-X

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John-Paul Gignac

Developed game: Pathological

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John-Paul Treen

Developed game: Wargamer

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John3

Developed game: Torque 3D

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JohnAFernandez

Developed game: FreeSpace 2 Source Code Project

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johnange

Developed game: COCOS2D-X

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Johnathan Franck

Developed game: Vircadia

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Johnathan James

Developed game: FreeCol

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Johnathon Selstad

Developed game: CCCP

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johndoe123

Developed game: ScummVM

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Johnny

Developed game: Jactorio

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Johnny Matthews

Developed game: UPBGE

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Johnny Salazar

Developed game: Pizza Business

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johnny8020

Developed game: Open Tibia

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JohnnyWahib

Developed game: Atomic Game Engine

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johnrdconnolly

Developed game: Cataclysm: Dark Days Ahead

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johnreactor

Developed games: Etterna, StepMania

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JohnTheDonut

Developed game: Space Station 13

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JohnWilliams77

Developed game: Forge

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Joilnen

Developed game: OGRE

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Developed game: UPBGE

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jojo

Developed game: Red Eclipse

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Jojonintendo

Developed game: Unvanquished

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JOKer

Developed game: Unknown Horizons

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JOKER VAN HAELN

Developed game: Mega Mario

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jokermatt999

Developed game: Cataclysm: Dark Days Ahead

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joliver82

Developed game: jMonkeyEngine

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Jolly

Developed game: Space Station 13

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Jolomann

Developed game: Etterna

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Jon

Developed game: VASSAL

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Jon Denning

Developed game: UPBGE

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Jon Gelderloos

Developed game: openage

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Jon Knapp

Developed game: Dungeon Crawl Stone Soup

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Jon Lund Steffensen

Developed game: Freeserf

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Jon Parise

Developed game: Panda3D

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Jon Rafkind

Developed games: Allegro, PainTown

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Jon Renner

Developed game: libGDX

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Jon Sargeant

Developed game: Machinations

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Jon Seaman

Developed game: MonoGame.Extended

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Jon Trulson

Developed game: Conquest

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Jon Watte

Developed game: GamePlay

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Jonadab the Unsightly One

Developed game: Brogue

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Jonah Jeleniewski

Developed game: Phaser

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JonahDes

Developed game: Cataclysm: Dark Days Ahead

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Jonan

Developed game: Heroes of Wesnoth

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Jonas

Developed game: Godot

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Jonas A. Lind

Developed game: OpenRA

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Jonas Byström

Developed game: Slime Volleyball

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Jonas Eschenburg

Developed game: Thunder&Lightning

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Jonas Haller

Developed game: Fusee

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Jonas Jelten

Developed game: openage

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Jonas Karlsson

Developed games: PCGen, Puzzle Moppet, ResidualVM, ScummVM

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Jonas Kulla

Developed game: mkxp

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Jonas Mörschbach

Developed game: Widelands

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Jonas Pucher

Developed game: Godot

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Jonas Spillmann

Developed game: Amphetamine

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Jonas Termansen

Developed game: GoldenEye: Source

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Jonas Öhrn

Developed game: Orx

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jonaskoelker

Developed game: Simon Tatham's Portable Puzzle Collection

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Jonast

Developed game: PyChess

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Jonathan

Developed game: openage

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Jonathan "Geenz" Goodman

Developed game: Vircadia

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Jonathan Atkins

Developed game: GLtron

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Jonathan Buresh

Developed game: Sintel The Game

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Jonathan C. Dietrich

Developed game: VASSAL

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Jonathan Calovski

Developed game: Stockfish

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Jonathan Clark

Developed game: Gorc

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Jonathan D.

Developed game: Stockfish

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Jonathan De Wachter

Developed game: Simple and Fast Multimedia Library

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Jonathan Dowland

Developed game: Chocolate Doom

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Jonathan E. Wright

Developed game: Nuvie

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Jonathan Esk-Riddell

Developed game: Blinken

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Jonathan Evraire

Developed game: WebChess

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Jonathan Freedman

Developed game: Open Simulator

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Jonathan G Rennison

Developed games: OpenTTD, TTDPatch

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