Free, open source game engine online
Free Texas Holdem Poker game using HTML5, CSS and JavaScript
A userscript for Blooklet, compatible with tampermonkey
Poko Rocket is a open-source tribute to Chu Chu Rocket game.
HTLS is an Hattrick live match viewer, based on the old Livefox.
Wolfenstein 3D HTML5 TOTAL Conversion
3D urban environment renderer : browser-app ; as well as a GTA clone
Simple OpenSource scoreboard
A comprehensive path-finding library for grid based games
Simple data driven web based gamebook engine using javascript.
Modular Gaming Open Source Persistent Browser Based Game Framework
Mafia MMORPG Browser-Based game
Free MMORPG Engine. Develop and host graphical browser-based games.
Game engine and ready browser game Pulsar Online
HTML/Javascript civilization/empire building game.