Steam has fixed the VR controller issue.

Feb 8, 2019

Necro Mutex

10,000 levels of chaotic sci-fi horror. Choose which maps you play, from super easy to practically impossible. Find the escape pods or just see how far you can get. Playable as a desktop first person shooter, or in VR on the HTC Vive, Oculus Rift and WMR.

There had been an issue introduced by a buggy steamworks update that broke VR last weekend, buttons on the controllers weren't responding. Steam support has now fixed the issue, so Necro Mutex is good to go in VR again! Now you can try out the new 180 degree tracking and rotation. ;)