Magic Another Game Engine
Ct.js is a desktop game engine that makes learning programming fun
fheroes2 is a recreation of Heroes of Might and Magic II game engine
Open source clone of the Age of Empires II engine
A fresh & lightweight javascript game engine
Free and open source real-time strategy game
Doom-based AI research platform for reinforcement learning
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Haskell game engine library for roguelike dungeon crawlers
Game framework with AI
Opensource crossplatform Fallout 2 game engine writen in C++ and SDL
Game engine supporting many 3D/2D formats and graphic effects
FiveM is a modification for Grand Theft Auto V
A 2D multiplayer space shooter game
Magical Quixo game
Java Settlers
Blind Chess using Taiwan rule
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
OpenGL port of the classic 6dof 3D shooter Descent