Awesome Open Source Games

cocos2d/cocos2d-x

Cocos2d-x is a suite of open-source, cross-platform, game-development tools utilized by millions of developers across the globe. Its core has evolved to serve as the foundation for Cocos Creator 1.x & 2.x.

Stack

C++ Android CMake Gradle pip

GitHub topics

#android #c-plus-plus #cocos2d #cocos2d-x #game-development #game-engine

Updated: 2025-05-09
Lists: 1 list mention
First commit: 2010-07-06
License: Unknown
Issues: 1,606 open

19,053

stars

Forks: 7,064
Commits: 37,362 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

OpenRCT2/OpenRCT2

An open source re-implementation of RollerCoaster Tycoon 2 🎢

Stack

C++ Android CMake .NET SDK Gradle

GitHub topics

#c-plus-plus #cmake #cpp #discord #game #hacktoberfest

Updated: 2026-06-11
Lists: 2 list mentions
First commit: 2014-04-01
License: GPL-3.0
Issues: 1,618 open

15,818

stars

Forks: 1,818
Commits: 30,172 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

SFTtech/openage

Clone of the Age of Empires II engine 🚀

Stack

Python CMake pip

GitHub topics

#age-of-empires #c-plus-plus #cmake #cpp #cpp20 #engine

Updated: 2026-06-07
Lists: 1 list mention
First commit: 2013-08-22
License: NOASSERTION
Issues: 213 open

14,245

stars

Forks: 1,248
Commits: 5,815 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

luanti-org/luanti

Luanti (formerly Minetest) is an open source voxel game-creation platform with easy modding and game creation

Stack

C++ Android CMake Gradle pip

GitHub topics

#c-plus-plus #cpp17 #game-engine #lua #luanti #minetest

Updated: 2026-06-11
Lists: 3 list mentions
First commit: 2010-11-26
License: NOASSERTION
Issues: 1,462 open

12,961

stars

Forks: 2,333
Commits: 13,501 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

mapeditor/tiled

Flexible level editor

AI dev

Stack

C++ CMake Maven npm

GitHub topics

#c-plus-plus #editor #game #game-development #hacktoberfest #java

Updated: 2026-06-10
Lists: 1 list mention
First commit: 2008-05-05
License: NOASSERTION
Issues: 812 open

12,639

stars

Forks: 1,929
Commits: 7,091 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

CleverRaven/Cataclysm-DDA

Cataclysm - Dark Days Ahead. A turn-based survival game set in a post-apocalyptic world.

AI dev

Stack

C++ Android CMake .NET SDK Gradle

GitHub topics

#c-plus-plus #cataclysm #game #hacktoberfest #zombies

Updated: 2026-06-11
Lists: 1 list mention
First commit: 2010-10-04
License: NOASSERTION
Issues: 2,900 open

12,430

stars

Forks: 4,529
Commits: 128,606 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

SFML/SFML

Simple and Fast Multimedia Library

Stack

C++ Android CMake Gradle

GitHub topics

#audio #c-plus-plus #cross-platform #games #graphics #hacktoberfest

Updated: 2026-05-29
Lists: 1 list mention
First commit: 2009-01-28
License: Zlib
Issues: 151 open

11,900

stars

Forks: 1,894
Commits: 3,953 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

endless-sky/endless-sky

Space exploration, trading, and combat game.

Stack

C++ CMake vcpkg

GitHub topics

#2d-game #adventure-game #arcade-game #c-plus-plus #cpp #endless-sky

Updated: 2026-06-09
Lists: 1 list mention
First commit: 2014-02-01
License: GPL-3.0
Issues: 908 open

7,374

stars

Forks: 1,262
Commits: 9,859 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

OpenMW/openmw

OpenMW is an open-source open-world RPG game engine that supports playing Morrowind. Main repo and issue tracker can be found here: https://gitlab.com/OpenMW/openmw/

Stack

C++ Qt CMake pip

GitHub topics

#c-plus-plus #foss #morrowind #open-source #openmw #rpg-engine

Updated: 2026-06-11
Lists: 1 list mention
First commit: 2008-06-22
License: GPL-3.0
Issues: Disabled

6,359

stars

Forks: 1,062
Commits: 38,082 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

gameplay3d/gameplay

Open-source, cross-platform, C++ game engine for creating 2D/3D games.

Stack

C++ CMake .NET SDK

GitHub topics

#c-plus-plus #cross-platform #engine #open-source #vulkan

Updated: 2025-02-25
Lists: 1 list mention
First commit: 2011-10-16
License: Unknown
Issues: Disabled

4,861

stars

Forks: 1,317
Commits: 4,603 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

spring/spring

A powerful free cross-platform RTS game engine. - Report issues at https://springrts.com/mantis/

Stack

C++ CMake Maven

GitHub topics

#c-plus-plus #game-engine #lua #opengl #real-time-strategy #rts

Updated: 2024-03-31
Lists: 1 list mention
First commit: 2005-05-04
License: NOASSERTION
Issues: Disabled

3,910

stars

Forks: 865
Commits: 28,426 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

Warzone2100/warzone2100

Command the forces of The Project in a battle to rebuild the world after mankind has been nearly destroyed by nuclear missiles. A 100% free and open source real-time strategy game for Windows, macOS, Linux, BSD+

AI dev

Stack

C++ CMake pip vcpkg

GitHub topics

#c-plus-plus #campaign #cheats #cmake #freebsd #game

Updated: 2026-06-10
Lists: 1 list mention
First commit: 2005-01-18
License: GPL-2.0
Issues: 573 open

3,842

stars

Forks: 601
Commits: 21,771 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

SuperTux/supertux

SuperTux source code

Stack

C++ Android CMake Gradle vcpkg

GitHub topics

#c-plus-plus #game #games #hacktoberfest #opengl #sdl

Updated: 2026-06-11
Lists: 1 list mention
First commit: 2003-04-09
License: GPL-3.0
Issues: 367 open

3,049

stars

Forks: 582
Commits: 14,579 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

teeworlds/teeworlds

A retro multiplayer shooter

Stack

C++ CMake

GitHub topics

#c #c-plus-plus #game #linux #macos #multiplayer

Updated: 2025-07-12
Lists: 2 list mentions
First commit: 2007-05-22
License: NOASSERTION
Issues: 360 open

2,618

stars

Forks: 645
Commits: 6,560 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

JACoders/OpenJK

Community effort to maintain and improve Jedi Academy (SP & MP) + Jedi Outcast (SP only) released by Raven Software

Stack

C++ CMake

GitHub topics

#c #c-plus-plus #fps #game #game-development #game-engine

Updated: 2026-05-13
Lists: 1 list mention
First commit: 2013-04-04
License: GPL-2.0
Issues: 271 open

2,255

stars

Forks: 687
Commits: 4,673 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

GitHub

OpenXcom/OpenXcom

Open-source clone of the original X-Com 👽

Stack

C++ CMake .NET SDK

GitHub topics

#c-plus-plus #game #openxcom-game #sdl #strategy-game-engine #turn-based-combat

Updated: 2026-06-05
Lists: 1 list mention
First commit: 2010-01-25
License: GPL-3.0
Issues: 75 open

2,186

stars

Forks: 560
Commits: 8,414 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

bwapi/bwapi

Brood War API

Stack

C++ CMake .NET SDK

GitHub topics

#ai #brood-war-api #broodwar #bwapi #c-plus-plus #game

Updated: 2026-06-10
Lists: 1 list mention
First commit: 2008-04-28
License: LGPL-3.0
Issues: 128 open

1,661

stars

Forks: 282
Commits: 2,647 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

yvt/openspades

Compatible client of Ace of Spades 0.75

Stack

C++ CMake

GitHub topics

#ace-of-spades #action-game #c-plus-plus #cmake #cross-platform-game #fps

Updated: 2024-06-06
Lists: 2 list mentions
First commit: 2013-08-18
License: GPL-3.0
Issues: 248 open

1,217

stars

Forks: 229
Commits: 2,167 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

gemrb/gemrb

GemRB is a portable open-source implementation of Bioware’s Infinity Engine.

Stack

C++ CMake vcpkg

GitHub topics

#c-plus-plus #engine #game #game-engine #isometric #python

Updated: 2026-06-06
Lists: 1 list mention
First commit: 2003-10-02
License: GPL-2.0
Issues: 192 open

1,212

stars

Forks: 214
Commits: 28,130 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

arx/ArxLibertatis

Cross-platform port of Arx Fatalis, a first-person role-playing game

Stack

C++ Qt CMake

GitHub topics

#arx-fatalis #c-plus-plus #cmake #cross-platform #dungeon-crawler #game

Updated: 2024-08-22
Lists: 1 list mention
First commit: 2011-01-15
License: GPL-3.0
Issues: Disabled

1,064

stars

Forks: 146
Commits: 21,738 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

stuntrally/stuntrally

NOTE: development in stuntrally3 repo. 3D racing game based on VDrift and OGRE with own Track Editor. The main repository with Stunt Rally 2.x sources and data.

Stack

C++ CMake Conan

GitHub topics

#3d #bullet-physics #c-plus-plus #car #cmake #cpp

Updated: 2024-08-13
Lists: 1 list mention
First commit: 2011-03-19
License: GPL-3.0
Issues: 22 open

644

stars

Forks: 128
Commits: 6,132 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

libSDL2pp/libSDL2pp

C++ bindings/wrapper for SDL2

Stack

C++ CMake

GitHub topics

#c-plus-plus #gamedev #graphics #sdl #sdl-image #sdl-mixer

Updated: 2025-03-18
Lists: 1 list mention
First commit: 2013-09-05
License: NOASSERTION
Issues: 43 open

597

stars

Forks: 92
Commits: 820 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

H-uru/Plasma

Cyan Worlds's Plasma game engine

Stack

C++ CMake pip vcpkg

GitHub topics

#c-plus-plus #game-engine #hacktoberfest #myst #plasma #uru

Updated: 2026-06-11
Lists: 1 list mention
First commit: 2011-03-12
License: GPL-3.0
Issues: 120 open

234

stars

Forks: 85
Commits: 6,662 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

gerstrong/Commander-Genius

Modern Interpreter for the Commander Keen (Vorticon Dreams and Galaxy) and also Cosmos Cosmic Adventure games. This is a mirror repo: The main gitlab repository is at: https://gitlab.com/Dringgstein/Commander-Genius

Stack

C++ CMake

GitHub topics

#c #c-plus-plus #commander #dos #keen #lua

Updated: 2026-05-23
Lists: 1 list mention
First commit: 2009-06-06
License: NOASSERTION
Issues: 21 open

221

stars

Forks: 46
Commits: 6,560 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

Espyo/Pikifen

A Pikmin-based game/engine for fan-made content.

Stack

C++ .NET SDK

GitHub topics

#allegro #c-plus-plus #dear-imgui #fangame #game #game-editor

Updated: 2026-06-11
Lists: 1 list mention
First commit: 2013-09-07
License: NOASSERTION
Issues: 3 open

77

stars

Forks: 19
Commits: 2,721 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

GitHub

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