Unity has announced version 4 of its cross platform game development engine.

The software now features the character animation system Mecanim, which the company acquired last September, support for DirectX 11 as well as support of Adobe Flash as q publishing platform in addition to iOS and Android. The developer environment is offered as a free version as well as a $1,500 Pro edition with the complete feature set. However, the company sells target platform support on an individual basis for $400.