Sandstone
Released
Play on: GitHub
You crash-land on a floating island and have a set of diegetic tools at your disposal, including a translator device. Explore ruins, use the translator device on ancient texts and figure out how to escape this island. You can see gameplay videos in the development YouTube playlist YouTube playlist.
This was the first more serious take on a VR project where I set out to make a complete VR game prototype which included: custom 3D assets; level design; functional locomotion and interaction system in VR; basic puzzle design. It took about a week to develop if excluding long breaks.
Note, I developed using Oculus Rift, so there might be issues with more modern headsets on PCVR.
Also, I made a whole series of posts going into more detail (some of them are a bit embarrassing now lol) which describe the nitty-gritty: