DK2 is the latest development kit for the Rift that allows developers to build amazing games and experiences.
Built in Latency Tester
Real-time microsecond precision measurement of motion-to-photon latency for optimization.
Out-of-the-box engine integrations for the Unreal Development Kit, Unreal Engine 4, and Unity 4.
The Oculus Rift and the Oculus SDK currently support Windows, Mac OS X, and Linux.