It’s a small startup based in Silicon Valley, building cutting edge gaming technology, their multiplatform game SDK named “Game Closure” have just been Open Sourced this week ! GameClosure allow you to build games 100% in JavaScript with a Native Speed !  So you can write HTML5 games that outperform the competition. GameClosure Games can run natively on Android and iOS, and there are already many sample games available in the market such as Blob Blast and Kiwi Run !

Documentation available here, and you can get GameClosure sources from their repository https://github.com/gameclosure/devkit. GameClosure is Dual Licensed,  GPLv3 and the Game Closure Free License (GCFL), whether you are creating Open Source or closed source games !