Self-hosted CMS platform based on the Laravel PHP Framework
Arianne is an engine to develop multiplayer online games like Stendhal
online 4X browser game engine
Alpha One is based on Vallheru
Web based Game server control panel
An awesome Tetris in javascript
Star Trek Web browser game
Unique web based space strategy game written by Andras Nemeth
the open source browser strategy game
PHP Games Script includes more than 3600 flash games
Space Exploration Game