Arianne is an engine to develop multiplayer online games like Stendhal
The first-ever RPG for WordPress
Online WFRP V2 Character Generator
Alpha One is based on Vallheru
Anarchy Online Emulator
Online Zombie Game is a medieval-zombie apocalypse rpg game.
Star Trek Web browser game
XMICAE is a framework for browser-based IF/RPG narratives.
Rolemaster Combat program
NinYawg Adventure
Board and web browser MMORPG
War of Respect is an online turn-based MMORPG in 2D-anime style.