Rob Alexander oh man community building was the best part of the Ark rules in Mutant: Year Zero. I thought it really did a good job of not only making community building and mutual support necessary, but constantly introduced stresses to that arrangement that prompted the players to evaluate their self-interest balanced against community interests. It wasn’t strictly mechanized but the fiction really brought them to that place.

I understand Kingdom and The Quiet Year hit that stuff pretty hard, but I haven’t played either one. Might be that they’re more…storyline oriented (for lack of a better term) than human-level engaging.