I didn't particulary find RimWorld to be very fun, but I did end up enjoying Oxygen Not Included, which is a side-scrolling 2d colony management sim that's a bit less serious and way more quirky.
I found Oxygen Not Included engrossing, but I had to cut myself off when I realized I kept spending each evening in the same mental state as when I firefight production outages.
All these games are fun until I hit something akin "make sure your colonists cant take a route from toilet thats not trough lavratory, otherwise they wont clean up their hands if they happen to choose that route". For gods sake if they clean hands 100% of times when passing lavratory, making them 100% of times go to lavratory after toilet should be an option too..
Its just feels like instead of playing the game I must combat it.
The lavatory thing is easy to workaround, at least. One entrance, and as many sinks as you have toilets. You can have a large bathroom, rooms with a bathroom attached, etc. As long as there's one way out and the sinks are there.
Much more annoying are the suits (and now, gas masks). If you are not careful with settings they will drop them elsewhere, or will enter the perfectly breathable base with suits still on.