dhewm 3 main repository
Real Time Strategy game engine supporting early Westwood classics
Open Source real-time strategy game engine for early Westwood games
Embeddable unity game engine view for Flutter
A modern, cross-platform Quake game engine based on FitzQuake.
GemRB is a portable open-source implementation of the Infinity Engine
Game engine supporting many 3D/2D formats and graphic effects
Go 3D Game Engine
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
A cross platform Lua based game engine
Free and Open Game Programming Language for Windows and GNU/Linux
Real-time RPG for PC/tablet/phone; multiple quests and random dungeons
2D physics engine for games
cross-platform 2d game engine