Guess the Number is a game written in C#
Turn based tactical battle multiplayer game with Aliens and Marines
Mighty 34th century meka action from TeamXbow
A MMORPG Engine, written in PhP and SQL
Evaluates Starcraft 2 games with respect to multiple macro aspects.
A open-source online football manager like hattrick
EPIC is an indepth Multiplayer Strategy RPG Web Game
Bagh Bandi - 2 player board game
An HTML web game platform
A multiplayer First-Person-Shooter game built in Java 3D
Game(similar to chess)
PHP Multiplayer Chess Script
Multiplayer snakes and ladders game Script
A lame multi-user dungeon engine.