HTML5 startup snubs $100 million Zynga bid

Game Closure, creator of an SDK enabling cross-platform multiplayer in HTML5, has raised $12 million in investment after turning down approaches from Facebook and Zynga.

TechCrunch reports that the company, the product of Stanford University's SSE Labs on which we first reported last year, had "significant inbound acquisition interest" not only from Facebook and its most successful developer, but Gree, Motorola and others. Zynga was apparently the highest bidder, offering around $100 million for the company.

The Game Closure SDK lets developers use Javascript and HTML5 APIs to develop games supporting cross-platform multiplayer across iOS, Android and Facebook, with more platforms to be added over time.

The SDK compiles, deploys and accelerates the game, which is then playable in web browsers without the need for plug-ins. The company has recently added analytics and translation tools to the SDK, and monetisation is next on the list.