Hi B.C., I got here from your blog post comparing the F# and Rust versions. Any chance you'll make the F# version's source public? I daydream about working on something like this to help me "get" F# and still feel like I'm building something, and I'm struggling. I think your F# version would be a good reference and inspiration.
Viewing post in Terrain Destruction and Web Version comments
I've thought about releasing parts of it as examples or libraries. In the meantime, if you hadn't seen them, you might check out the platformer demo or Garnet examples. For learning idiomatic F#, the roguelike example game logic might be a good start.