I'd love to see more focus on non-JVM impls other than JS -- .Net Core 3.x specifically. (ClojureCLR is pretty much dead, right?)
They just got a round of funding this year, and they've got several good talks posted on their homepage about the quirks of working on .NET.
Godot is a decent OSS alternative to Unity, but no Clojure/Lisp so far as I know :(
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