Built to be ease of use, with no programming knowledge, Multi-platform
Egret is a brand new open mobile game and application engine
Free strategy browsergame engine.
TurboSphere is an easy to learn and powerful JS based game engine.
XMICAE is a framework for browser-based IF/RPG narratives.
LAIR is a Sandbox Dungeon Crawling Game
Classic backgammon in fantasy setting with a lot of missions.
SuperWikia: The Runtime/Realtime Environment for Codesmiths
Simple and scalable 3d javascript game engine
Javascript adventure game engine
An extensible development framework for roleplay games.
Formerly CraveJs, it's for creating JavaScript applications and games.
fiftyfifty is a programming language and game
Free MMORPG Engine. Develop and host graphical browser-based games.