Flexible level editor
GPS track editor for editing tracks and planning (multiple) day tours
A 2D multiplayer space shooter game
Old-school 2D game engine
SDL based generic 2D game engine
a free hack & slash action 2D/3D rogue / ultima / dungeon like game
2D Game Engine
Free and Open Game Programming Language for Windows and GNU/Linux
Fast and robust map analyser for Brood War.
3D urban environment renderer : browser-app ; as well as a GTA clone
Adventure game with permanent death & procedurally generated level.
A roguelike game engine/editor
A 2D tile map editor created using .NET framework.
Counter-Strike Global Offense Web Administration
Unique web based space strategy game written by Andras Nemeth
Free position 2D maps for computer games.
Tactics is an Online Role Playing Game developed by the Gametack team
Table Top Online Role Playing (TTORP)
Space Exploration Game