A community sourced database of game controller mappings
Classic overhead run-and-gun game
dhewm 3 main repository
Enigma is a puzzle game
GemRB is a portable open-source implementation of the Infinity Engine
CGL (C Game Library) is a multipurpose library
A modern, cross-platform Quake game engine based on FitzQuake.
A strategy game with a high fantasy theme
Orx: Portable Game Engine
RTS game with the theme of Strategy by Design
puzzle game based on hexagonal tiles
SDL based generic 2D game engine
a (simple) Sokoban game
Cross-platform, GPL reimplementation of the classic : Syndicate
Seven Kingdoms: Ancient Adversaries
A free transportation simulator game
simple chess game written in C
Odamex is a free, cross-platform, modern client-server Doom engine