SEGA demoed Alien Isolation at E3 running on the Oculus Rift, then after stated that the game wasn’t going to ship with Oculus Rift support. This was partly true considering that the game that shipped didn’t have a selectable Oculus Rift mode, but the code is still in the game. Here is how to unlock it.
1. Find the Alien Isolation DATA folder.
2. Open ENGINE_SETTINGS.XML
3. Edit the stereo options to the following:
<Setting name="Stereo Mode"> <Quality name="Rift" precedence="4"/> <Quality name="Off" precedence="4"/> </Setting>
Now set the Oculus Rift to ‘extended mode’ and in the Oculus config utility make sure you pause the service. Boot the game up and it should work. More information can be found in this detailed Reddit thread.Ad: