Modular Gaming Open Source Persistent Browser Based Game Framework
...We are using Kohana 3.3
You can view a demo at http://demo.modulargaming.com
If you have any questions, bugs or feature requests feel free to post them on the issuetracker at GitHub. https://www.github.com/modulargaming/modulargaming
Licensed under a BSD license. Modular Gaming can be used legally for any open source, commercial, or personal project.
OpenBlox lets you make games with a built-in physics engine, Lego-like building blocks, and a scripting language called Lua. Once you've made a game with OpenBlox, you can pack it into a single file with one mouse click, and share your game with anyone you want.