Townscaper on Steam

https://store.steampowered.com/app/1291340/Townscaper/

Developer Oskar Stalberg, publisher Raw Fury; early access 2020-06-30; full release 2021-08-26; instant town building toy with no goal; colored blocks on an irregular grid; an algorithm turns blocks into houses, arches, stairways, bridges, and gardens.

Townscaper