Are you looking for a somewhat generic system that can handle a Frostpunk genre game? If so, Cypher System, Savage Worlds, Cortex Prime, or Fate would work depending on your other preferences in a system style.
I was trying to recall a TTRPG that I saw a while back that specifically focused on building a community that would work, but I'll have to post it later when I figure it out. Stupid faulty human memory.
Ironsworn/Starforged has strong hits, weak hits, and misses in the action roll. Your action score is compared to two challenge dice. Beating both is a strong hit, beating one is a weak hit, otherwise it's a miss.