Open Source Geospatial Foundation
MapGuide Open Source is a platform for developing web mapping applications.
A comprehensive open-source tool to create your own 2-D animated games.
Risk - Risk Board Game
Java Risk is excellent Free Risk Game Software.
Game Downloader is a tool that helps you download free games.
Falling Block Game 2 is a puzzle game a la Tetris.
Open Dungeons Community
OpenDungeons is an open source, real time strategy game.
Nathaniel Sherry and Matt Lawrence
OpenFracas is a free, open-source game that is similar to Risk.
Open Game Panel
Open Game Panel is an open-source web based Game server control panel.
Open Sonic is an open-source game based on the "Sonic the Hedgehog" universe.
I. De Marchi
WPieces is an open source game based on the Chinese game called Tangram.
Neural Networks Research Group
Open source game platform designed for game AI research.
An open source game that tries to convert the popular game Minecraft in 2D.
Miguel Escudero Gestal
Tubularix is an open source game based on the classic puzzle game Tetris.
UltraStar Deluxe is an open-source karaoke game for your PC.
The DreamChess Project
DreamChess 0.2.0 is a multi-platform open source chess game.