RetroArch is a frontend for emulators, game engines and media players.
A dead simple 2D game engine for Go
3D Engine c++
Domination is a game that is a bit like the board game Risk
GemRB is a portable open-source implementation of the Infinity Engine
A MUD client for Android, iOS, Linux, Mac OS X and Windows
Orx: Portable Game Engine
TKD Scoring Wi-Fi Server supporting Android and IPhone clients
JavaScript framework to build game engines, games, emulators and apps
Old style soccer game with many exciting features
Character animation system for games and simulations.
A cross-platform interpreter for many point-and-click adventure games
Open-DIS implements the IEEE DIS protocol in multiple languages.
A romanian translation of ETR with no diacritics
3D .NET engine for Windows, Linux, Mac
Mobile viewer for Kendo Tournament Manager tool.
Science Fiction, heavy assault, disestablishment of power.
ping pong game for mobile (Adobe AIR)