Janet
Janet is a small dynamic Lisp with a bytecode VM, coroutines, parser combinators, networking, and tooling for single-file programs.
Why use it
It fits build scripts, interactive consoles, content tools, and hot-iterated rule layers.
Where it fits
Find engines, frameworks, code libraries, version control, and production automation.
What to check
Game-specific libraries are limited, and its syntax and functional style add a learning cost.