Download the unity  4.2 unity integration package not the runetime on unity 5 the dk2 will automatically render games for oculus if you check the enable vr in player settings For dk1  in either version of unity import the integration package  you will have an error about the dll go to plugins delete the first oculusplugin.dll  and not the one in the 64x-86x folder bam! import the ovr controller rig and your good to go if it says Vr device not detected thats fine this will fix all that and you will still be able to run your game with tracking and all enjoy!