Cross-platform real-time strategy game (3D)
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
VenenuX's development and software contender
oGame-like browser space realtime strategy game based on xNova
Game engine allows you to create own MMORPG
Sudoku web game
An OpenSource (C# .NET) TeamPlay Environment.
Board and web browser MMORPG
Munchkin online game. We use: php,jquery,mysql
WarNards is an advanced version of backgammon.