Flexible level editor
The source code to VVVVVV
A fresh & lightweight javascript game engine
Eureka is a DOOM map editor
Colonize the New World.
Domination is a game that is a bit like the board game Risk
GPS track editor for editing tracks and planning (multiple) day tours
A toolbox for Sid Meier's Civilization
Advanced map editor
Custom Map File Generator for C-evo
A 2D multiplayer space shooter game
BattleTech MUX Client
SDL based generic 2D game engine
A free 3d game for PC that does not limit the player. Fight,Build,Gain
turn-based wargame/simulator
2D Game Engine
Open RealStrategyGameLibrary (Engine)
KBall, game of skill and reflexes, non violent, suitable for all age