For a pure C# engine maybe check out https://www.stride3d.net. It's using Bepu for physics.

I considered it, but there's no path towards a console port afaict since NativeAOT isn't supported yet, and I want to avoid being locked out of any platforms in the future. I've been playing my game on my phone and my Deck against the same server and being able to switch between devices whenever I want really appeals to me.

Did you check out Stride? https://www.stride3d.net

There is an OS alternative: https://github.com/MiczFlor/RPi-Jukebox-RFID

Built one for my niece. She liked it.

This (older) collab is pretty nice: https://www.vision.ict.e.titech.ac.jp/projects/WOW_TOKYO_AYA...

Spectral.js might also be interesting. It comes with a GLSL implementation of Kubelka-Munk and is MIT.

https://github.com/rvanwijnen/spectral.js

There is also spectral.js which is MIT: https://github.com/rvanwijnen/spectral.js

Maybe check out vvvv[1] and the VL.Fuse[2/3] library for realtime node based shader programming.

[1] https://visualprogramming.net

[2] https://www.thefuselab.io

[3] https://github.com/TheFuseLab/VL.Fuse

Idk if it counts but there is VL, a node based visual programming language for .NET.

https://visualprogramming.net

https://thegraybook.vvvv.org/reference/getting-started/dotne...

made me think of https://motionbank.org

Maybe put it on codeberg.

https://codeberg.org

https://en.wikipedia.org/wiki/Codeberg

Will have a look. Thanks