>Rimworld
Either he becomes the one colonist that keeps everyone at mental breaks, or he's the storyteller, which sounds like a great idea for a mod.
>Pulls many xenohumans into your colony
>Female baseliners are at a constant mood debuff, but get massive combat buffs
>He himself appears as a quest/raider sometimes, not attacking anyone, but just trying to chat to your baseliners, with only way to repel him is to use said xenohumans, who get a huge mood buff but also huge work debuff from him
>Works by randy random rules
>Adds a virgin sacrifice pit. Can sacrifice him into one, that will result in an instant game over. Alternatively, you can sacrifice someone else for more shit to happen