EVROPA
About
You are a remote technician working on the Jovian moon Europa. An exploratory sub has unexpectedly been incapacitated. Take control of it, make sure to keep it powered up by collecting the energy crystals, and try to find out what damaged it.
EVROPA: an experiment in VR (Medium), 24 Sept, 2017
This is a game made to work with Google Cardboard. Will it work for you? Who knows! I last touched Unity in August 2017 🙃