Orx: Data-Driven Game Engine
Open-source reimplementation of the original King's Bounty
PAK file editor for Quake engine games
realtime 3d surface rendering library
A cross-platform, 3D interpreter to play LucasArts' Lua-based games
A generic 2D engine for any kind of game
A basic 3D environment with a first-person POV
a realtime graphics library