An isometric arcade-style game of skill, puzzles and exploration
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Payday 2 HUD
3D-Accelerated open-source DOOM engine
Game engine for playing tomb raider 1 - 5 levels.
AdventureMap peripherals for ComputerCraft
Multiplatform Scripting Environment for Videogames and Multimedia
A generic C++ MUD server featuring a strategy-style hexagon map