Cosmos Tycoon is a open source transport simulation browser game.
Online Freecell based on html5/canvas
Wolfenstein 3D HTML5 TOTAL Conversion
3D urban environment renderer : browser-app ; as well as a GTA clone
JAVA websocket implementation for a bomberman-like game
A web port of the classic Eamon adventure RPG
ASCII based browser tower defense game
Simple data driven web based gamebook engine using javascript.
Sudoku web game
The Snake Game written in JavaScript and CSS3!
online browser racing arcade game
A very basic browser based adventure game.
Browser sudoku game
A puzzle game of rules acting upon rules. Create the desired pattern.
Egret is a brand new open mobile game and application engine
free online frogger game clone
Modular Gaming Open Source Persistent Browser Based Game Framework
XMICAE is a framework for browser-based IF/RPG narratives.
Mafia MMORPG Browser-Based game
Powerful html5 & javascript library for creating applications & games.
Formerly CraveJs, it's for creating JavaScript applications and games.