Progress Quest is great. Learned about it on a MUD many, many years ago, ran it on and off for a few years as a kind of screensaver. https://trimps.github.io/

Progress Quest is great. Learned about it on a MUD many, many years ago, ran it on and off for a few years as a kind of screensaver. https://trimps.github.io/ https://trimps.github.io/ is my favourite contemporary idle:ish game, it requires very little activity and has a neat story.