Arianne is an engine to develop multiplayer online games like Stendhal
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
PacMan game playable in modern and semi-modern browsers, uses SVG.
The first-ever RPG for WordPress
Internet Discussion Boards is a message board system by Game Maker 2k.
Cerberus Content Management System
Find your relationship with your dream partner.
PHP/MySQL/JS free multiplayer browser-based online game about tanks
Alpha One is based on Vallheru
Online Zombie Game is a medieval-zombie apocalypse rpg game.
3D urban environment renderer : browser-app ; as well as a GTA clone
Open source script based on Master XLS
Free strategy browsergame engine.
Star Trek Web browser game
Modular Gaming Open Source Persistent Browser Based Game Framework
XMICAE is a framework for browser-based IF/RPG narratives.
Minecraft private Skin Center
Counter-Strike Global Offense Web Administration
Unique web based space strategy game written by Andras Nemeth