Yup, Ramsey gave a talk at Clojure/north [1] about Arcadia. I got a chance to briefly chat with him, and it looks like they actually managed to raise funding to develop it further.
And somebody made Arcadia bindings for Godot [2], but the project isn't actively maintained. Would be great if somebody picked it up again.
[1] https://www.youtube.com/watch?v=LbS45w_aSCU [2] https://github.com/arcadia-unity/ArcadiaGodot
Godot blows up the entire OS when you have HTTP content filtering enabled on a kids’ account (not Godot’s fault, but it is the only app that ever triggered that particular kernel panic in over 2 years they’ve had a Mac):
Godot is a decent OSS alternative to Unity, but no Clojure/Lisp so far as I know :(