My little VR game I released last year
https://alektron.itch.io/fear-of-falling

It's written in C++ with OpenGL, ImGui, PhysX and OpenVR.
The physics based movement was a real challenge to get right. I wanted the controls to feel very tight. No jank or spring-like behavior of the climbing hooks that are used as an extension of your arm. This rquired its own little physics system on top of PhysX. Eventually I heavily cut down on content or I wouldn't have finished the project, so the areas where this precise control would have really become necessary, didn't make it into the game. Nonetheless I believe the movement system is something rather unique.

The screenshots show the editor with built-in lightmap packing and baking, among other things.
For lightmaps baking I use https://github.com/ands/lightmapper, a system inspired by the lightmapping of The Witness.
Especially considering its simplicity the result are pretty good. Even if baking times were quite slow.