A game of dungeon exploration, combat and magic
Real Time Strategy game engine supporting early Westwood classics
Open Source real-time strategy game engine for early Westwood games
An Open Source DOS emulator to run old DOS games
Chess Database and PGN viewer
A modern, cross-platform Quake game engine based on FitzQuake.
A cross-platform port of Hexen II game.
3D Engine c++
GemRB is a portable open-source implementation of the Infinity Engine
Retro style, multi-platform soccer game
INSTEAD - Simple Text Adventure Interpreter.
A MUD client for Android, iOS, Linux, Mac OS X and Windows
Android, UIQ 3.0, Series 60 Edition 5 open-source software
Game engine supporting many 3D/2D formats and graphic effects
Cross-platform real-time strategy game (3D)
Cross-platform dice roller for multiple RPG systems.
ASCII SpaceInvaders, Pacman, Frogger
0 A.D. is a free, open-source, cross-platform real-time strategy game.
kid-friendly retro point & click 3D OpenGL "adventure" game
Unique 3D slider puzzle that looks like a rubics cube.
Permuted picture puzzle, allows using your own PNG pictures.