One of the best Prodigy hacks
All Google Snake mods combined into one
A 2D rigid body physics engine for the web
High performance UI layout library in C
2D JavaScript Physics Engine
Platform independent browser based Str8ts solver
Platform independent browser based Sudoku solver
90-ball bingo with sound
Chess application whichs allows working with chess PDF books and PGNs.
JavaScript framework to build game engines, games, emulators and apps
Game engine supporting many 3D/2D formats and graphic effects
Jeopardy in HTML and JavaScript
A complete web framework to create online Fighting Fantasy adventures
oGame-like browser space realtime strategy game based on xNova
Cosmos Tycoon is a open source transport simulation browser game.
HTLS is an Hattrick live match viewer, based on the old Livefox.
Online Freecell based on html5/canvas
3D urban environment renderer : browser-app ; as well as a GTA clone
ASCII based browser tower defense game
Browser sudoku game
Coin collecting software for organize and manage your own catalogue
Modular Gaming Open Source Persistent Browser Based Game Framework