Contagion
Monochrome, Inc · 2013 · Steam 75% · Metacritic 62
ZombiesCo opPost-apocalypticHorrorShootersFirst-person
Contagion isn't your average Zombie Shooter but instead takes a more realistic and different approach to the popular genre with unique characters, environments, weapons, items, and a built in system that makes every round completely unpredictable with resources, objectives, and paths ever changing.
Other headset option (1)
These are driver-based or stereoscopic methods, not purpose-built VR conversions. They may provide head-tracked stereo or a 3D virtual screen, but usually do not add native tracked interactions, VR menus, or room-scale play.