Love2D

LÖVE is an awesome framework (game engine) you can use to make 2D computer games in Lua. It's free, open-source, and works on Windows, macOS, Linux, Android and iOS. https://love2d.org/

Kartik Agaram considers it a great candidate substrate for durable programs... One limitation at the moment: LÖVE doesn't support network requests.

• Apr'2025 update: actually it does, including http, but not https