Games like They Are Billions
Games like They Are Billions include Frostpunk, Oxygen Not Included, Infection Free Zone, RimWorld, and Manor Lords. We matched them by the tags players give They Are Billions on Steam (Base Building, Colony Sim, Strategy, Zombies, and Survival): closest matches first, and among equally close ones the better-known games.
Frostpunk
Shared: Strategy · Survival · Colony Sim
Oxygen Not Included
Shared: Base Building · Colony Sim · Survival
Infection Free Zone
Shared: Base Building · Zombies · Strategy
RimWorld
Shared: Base Building · Colony Sim · Strategy
Manor Lords
Shared: Strategy · Base Building · City Builder
Frostpunk 2
Shared: Strategy · Survival · City Builder
Going Medieval
Shared: Base Building · Colony Sim · Strategy
Endzone - A World Apart
Shared: Strategy · Survival · Base Building
IXION
Shared: Strategy · Colony Sim · Base Building
Kingdom Two Crowns
Shared: Base Building · Tower Defense · Strategy
Kingdoms and Castles
Shared: Colony Sim · Strategy · City Builder
Diplomacy is Not an Option
Shared: Base Building · Zombies · Colony Sim
Against the Storm
Shared: Strategy · Base Building · City Builder
Colony Survival
Shared: Colony Sim · Base Building · Survival
From Glory To Goo
Shared: Strategy · Base Building · RTS
Banished
Shared: Colony Sim · Strategy · City Builder
Space Haven
Shared: Base Building · Colony Sim · Strategy
Dwarf Fortress
Shared: Colony Sim · Base Building · Strategy
7 Days to Die
Shared: Zombies · Survival · Base Building
Workers & Resources: Soviet Republic
Shared: Strategy · Base Building · City Builder
Rise to Ruins
Shared: Colony Sim · Strategy · Base Building
Planetbase
Shared: Colony Sim · Base Building · Strategy
Becastled
Shared: Base Building · Strategy · Colony Sim
Empires of the Undergrowth
Shared: Base Building · Strategy · Colony Sim