To further use comparisons, the characters and events that occur are governed by a Left 4 Dead style AI Director which takes into account your colony's wealth, health of your survivors and so on to create storylines. Despite appearances, Rimworld is not a particularly complex Prison Architect mod, but in fact a low-fi space colony sim more along the lines of Maia. Pound the discovery alarm, it's yet another game I probably should have heard about already.
