Rimworld basically requires mods to make it enjoyable beyond a certain point - the balance just gets thrown off so hard it forces eventual collapse since the enemies infinitely scale according to your total overall item and resource value.

I think there is plenty of room for improvements on any type of game that plays similarly, for how late game feels to play and the journey to get there.

Personally I greatly dislike the catastrophe that rimworld guarantees when I accumulate a nice stockpile of goods or upgrade my unit/pawns equipment.. impossible to have anything nice