The ioquake3 community effort to continue supporting/developing id's
Desktop/Android/HTML5/iOS Java game development framework
RPG Maker 2000/2003 and EasyRPG games interpreter
A modern, cross-platform Quake game engine based on FitzQuake.
A cross-platform port of Hexen II game.
Rust library to create a Good Game Easily
A c++ public domain audio output class
Open RealStrategyGameLibrary (Engine)
A cross platform Lua based game engine
Free and Open Game Programming Language for Windows and GNU/Linux
A Smarter Way to Tag FLAC, Vorbis, Lyrics, WMA, WavPack, and ID3 Tags
Game engine for playing tomb raider 1 - 5 levels.
3D .NET engine for Windows, Linux, Mac
Java Game Engine
TurboSphere is an easy to learn and powerful JS based game engine.
3D game engine for C and C++
Cross-platform 2D game engine