Awesome Open Source Games

godotengine/godot

Godot Engine – Multi-platform 2D and 3D game engine

Stack

C++ Android CMake .NET SDK Gradle

GitHub topics

#game-development #game-engine #gamedev #godot #godotengine #multi-platform

Updated: 2026-06-11
Lists: 1 list mention
First commit: 2013-04-10
License: MIT
Issues: 18,436 open

112,403

stars

Forks: 25,629
Commits: 84,035 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

BabylonJS/Babylon.js

Babylon.js is a powerful, beautiful, simple, and open game and rendering engine packed into a friendly JavaScript framework.

AI dev

Stack

TypeScript React Vite npm

GitHub topics

#3d #babylon #game-development #game-engine #game-engine-3d #typescript

Updated: 2026-06-11
Lists: 2 list mentions
First commit: 2013-06-27
License: Apache-2.0
Issues: 33 open

25,623

stars

Forks: 3,656
Commits: 47,443 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

libgdx/libgdx

Desktop/Android/HTML5/iOS Java game development framework

Stack

Java Android CMake .NET SDK Gradle

GitHub topics

#2d #3d #android #cross-platform #framework #game

Updated: 2026-06-05
Lists: 1 list mention
First commit: 2010-03-06
License: Apache-2.0
Issues: 325 open

25,136

stars

Forks: 6,537
Commits: 15,628 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

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

OpenRA/OpenRA

Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.

Stack

C# .NET SDK

GitHub topics

#command-and-conquer #cross-platform #csharp #dotnet #dune-2000 #engine

Updated: 2026-06-09
Lists: 1 list mention
First commit: 2007-06-19
License: GPL-3.0
Issues: 1,615 open

16,779

stars

Forks: 2,946
Commits: 30,822 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

playcanvas/engine

Powerful web graphics runtime built on WebGL, WebGPU, WebXR and glTF

AI dev

Stack

JavaScript React Vite npm

GitHub topics

#3d-gaussian-splatting #3dgs #game-development #game-engine #gamedev #gaussian-splatting

Updated: 2026-06-11
Lists: 1 list mention
First commit: 2011-10-24
License: MIT
Issues: 601 open

16,003

stars

Forks: 1,914
Commits: 13,092 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

MonoGame/MonoGame

One framework for creating powerful cross-platform games.

AI dev

Stack

C# .NET SDK Maven

GitHub topics

#3d #c-sharp #cross-platform #csharp #dotnet #game-development

Updated: 2026-06-11
Lists: 1 list mention
First commit: 2009-09-02
License: NOASSERTION
Issues: 729 open

13,997

stars

Forks: 3,077
Commits: 13,655 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

melonjs/melonJS

a modern & lightweight HTML5 game engine

Stack

JavaScript React Vite npm pnpm

GitHub topics

#2d-game-engine #canvas2d #contributions-welcome #es6 #game-development #game-engine

Updated: 2026-06-08
Lists: 1 list mention
First commit: 2011-04-11
License: MIT
Issues: 20 open

6,309

stars

Forks: 663
Commits: 7,838 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

urho3d/urho3d

Game engine

Archived

Stack

C++ Android CMake Gradle

GitHub topics

#2d #3d #3d-graphics #angelscript #cpp #cpp17

Updated: 2023-01-25
Lists: 1 list mention
First commit: 2011-01-02
License: MIT
Issues: 72 open

4,741

stars

Forks: 1,014
Commits: 10,578 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

MovingBlocks/Terasology

Terasology - open source voxel world

Stack

Java Gradle

GitHub topics

#game #game-development #game-engine #game-engine-3d #gamedev #hacktoberfest

Updated: 2026-04-19
Lists: 1 list mention
First commit: 2011-03-04
License: Apache-2.0
Issues: 481 open

3,864

stars

Forks: 1,372
Commits: 12,097 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

AtomicGameEngine/AtomicGameEngine

The Atomic Game Engine is a multi-platform 2D and 3D engine with a consistent API in C++, C#, JavaScript, and TypeScript

Archived

Stack

C++ Android CMake Gradle npm

GitHub topics

#android #cplusplus #csharp #game-development #game-engine #ios

Updated: 2024-03-17
Lists: 1 list mention
First commit: 2015-01-24
License: NOASSERTION
Issues: 394 open

3,450

stars

Forks: 587
Commits: 3,398 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

GitHub

DescentDevelopers/Descent3

Descent 3 by Outrage Entertainment

Stack

C++ CMake vcpkg

GitHub topics

#cplusplus #game-engine

Updated: 2026-01-21
Lists: 1 list mention
First commit: 2024-04-16
License: GPL-3.0
Issues: 44 open

2,998

stars

Forks: 279
Commits: 1,603 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

GitHub

ioquake/ioq3

The ioquake3 community effort to continue supporting/developing id's Quake III Arena

Stack

C CMake

GitHub topics

#fps #fps-engine #fps-game #game #game-development #game-engine

Updated: 2026-03-09
Lists: 1 list mention
First commit: 2012-01-31
License: GPL-2.0
Issues: 151 open

2,754

stars

Forks: 596
Commits: 3,790 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

HaxeFlixel/flixel

Free, cross-platform 2D game engine powered by Haxe and OpenFL

Stack

Haxe

GitHub topics

#2d-game-engine #cross-platform #flixel #game-engine #haxe #haxeflixel

Updated: 2026-06-04
Lists: 1 list mention
First commit: 2011-07-25
License: MIT
Issues: 296 open

2,191

stars

Forks: 507
Commits: 6,652 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

evennia/evennia

Python MUD/MUX/MUSH/MU* development system

AI dev

Stack

Python Django Django REST Framework Jupyter Tornado PEP 517 pip uv

GitHub topics

#based #django #engine #game-development #game-engine #gamedev

Updated: 2026-05-19
Lists: 1 list mention
First commit: 2006-11-20
License: BSD-3-Clause
Issues: 142 open

2,067

stars

Forks: 767
Commits: 10,389 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

ppy/osu-framework

A game framework written with osu! in mind.

Stack

C# .NET SDK

GitHub topics

#game-engine #game-frameworks #hacktoberfest #osu

Updated: 2026-06-08
Lists: 1 list mention
First commit: 2016-08-26
License: MIT
Issues: 470 open

1,968

stars

Forks: 481
Commits: 26,291 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

GitHub

AdamsLair/duality

a 2D Game Development Framework

Archived

Stack

C# .NET SDK

GitHub topics

#c-sharp #csharp #dotnet #duality #framework #game-development

Updated: 2025-05-19
Lists: 1 list mention
First commit: 2013-07-21
License: MIT
Issues: 136 open

1,428

stars

Forks: 287
Commits: 3,603 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

ikemen-engine/Ikemen-GO

An open-source fighting game engine that supports MUGEN resources.

Stack

Go Go modules

GitHub topics

#game-engine #gamedev #go #golang

Updated: 2026-06-10
Lists: 1 list mention
First commit: 2016-10-21
License: NOASSERTION
Issues: 122 open

1,386

stars

Forks: 218
Commits: 6,108 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

city41/breakouts

A collection of JS engine implementations of Breakout

Archived

Stack

JavaScript npm

GitHub topics

#game-development #game-engine #javascript #javascript-game

Updated: 2023-12-13
Lists: 1 list mention
First commit: 2012-12-04
License: Unknown
Issues: 17 open

543

stars

Forks: 115
Commits: 236 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

redeclipse/base

Base environment for Red Eclipse and associated source files.

Stack

C++ CMake .NET SDK pip

GitHub topics

#game #game-engine #hacktoberfest #main-project #source-code

Updated: 2026-04-08
Lists: 2 list mentions
First commit: 2015-02-04
License: Unknown
Issues: 231 open

520

stars

Forks: 106
Commits: 8,015 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

MegaGlest/megaglest-source

MegaGlest real-time strategy game engine (cross-platform, 3-d)

Stack

C++ CMake .NET SDK pip

GitHub topics

#cross-platform #free-software #game #game-engine #linux #macos

Updated: 2026-05-31
Lists: 1 list mention
First commit: 2010-01-22
License: Unknown
Issues: 65 open

402

stars

Forks: 97
Commits: 6,048 commits
Star growth, last 7 days: 0 0.0%
Commit velocity, last 7 days: 0 0.0%

Website GitHub

instead-hub/instead

INSTEAD - Simple Text Adventure Interpreter

Stack

C CMake

GitHub topics

#game-engine #interactive-fiction #lua #quests

Updated: 2026-06-07
Lists: 1 list mention
First commit: 2009-02-21
License: NOASSERTION
Issues: 10 open

256

stars

Forks: 45
Commits: 3,846 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

BSVogler/WurfelEngineSDK

Isometric game engine. Open world, block/voxel based and sprite rendering.

Stack

Java Maven

GitHub topics

#engine #game-engine #isometric #libgdx

Updated: 2025-08-16
Lists: 1 list mention
First commit: 2015-05-30
License: NOASSERTION
Issues: 6 open

118

stars

Forks: 25
Commits: 529 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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