- Unity seems promising but they have a weird version of mono running things and not so recent C# features available. Might be a non issue.

- Godot seems more promising for my use case but I feel like they want you to use GDScript. I don't want to use GDScript while there is a perfectly capable C# engine there. Is .NET second class in Godot?

- MonoGame was basically abandoned for a long time. I wonder if it got any better. That might be a little too much "code first" though.

Stride.. I just heard it the first time ever. Its a shame. And apparently it is a proven engine especially in VR space. Jumped on it, unfortunately no macOS support available so can't dig in right now.

This is a seriously impressive physics engine. Their design is difficult to integrate with but the performance is insane.

https://youtu.be/tjtwSq3u6Dg