A new Minecraft world editor and converter
Self-hosted game stream host for Moonlight
Open source clone of the Age of Empires II engine
A free/open source client and automation tool for Ragnarok Online
New Modpack with Gregtech, Thaumcraft and Witchery
Code for Cicero, an AI agent that plays the game of Diplomacy
4X Space Strategy Game
An Ubuntu remix for both new and experienced Linux sophisticates
Transform your DualShock 4 into a native Xbox 360 controller. v2.1.0
Vivid3D is a C++ IDE/3D engine, with python scripting.
Cooperative multiplayer graphical RPG and adventure game
Opensource Created Custom Viewers For Virtual Worlds like SecondLife.
GemRB is a portable open-source implementation of the Infinity Engine
Realism Invictus mod for Civilization IV
GameServer is a sophisticated, game server designed for online games
A Wii-like game that can be controlled using a Nunchuk or a phone.
... the open-source glide computer
Add and Subtract game
Janken - A Simple Rock, Paper, Scissors Game
BARS - a program for playing checkers