Games like War for the Overworld
Games like War for the Overworld include RimWorld, Manor Lords, Prison Architect, Kingdoms and Castles, and Dwarf Fortress. We matched them by the tags players give War for the Overworld on Steam (Cult, Dungeon Crawler, Base Building, Sandbox, and Management): closest matches first, and among equally close ones the better-known games.
RimWorld
Shared: Base Building · Sandbox · Management
Manor Lords
Shared: Base Building · Simulation · Management
Prison Architect
Shared: Base Building · Sandbox · Simulation
Kingdoms and Castles
Shared: Management · Sandbox · Base Building
Dwarf Fortress
Shared: Base Building · Sandbox · Simulation
Cities: Skylines
Shared: Management · Sandbox · Simulation
Dungeons 3
Shared: Base Building · Management · Simulation
Infection Free Zone
Shared: Base Building · Management · Strategy
Against the Storm
Shared: Base Building · Simulation · Management
Cult of the Lamb
Shared: Base Building · Cult · Dungeon Crawler
Evil Genius 2: World Domination
Shared: Base Building · Management · Sandbox
Workers & Resources: Soviet Republic
Shared: Base Building · Simulation · Strategy
Oxygen Not Included
Shared: Base Building · Management · Sandbox
Foundation
Shared: Sandbox · Simulation · Management
Going Medieval
Shared: Base Building · Management · Sandbox
Empires of the Undergrowth
Shared: Base Building · Simulation · Strategy
SimCity™ 4 Deluxe Edition
Shared: Base Building · Sandbox · Management
Factorio
Shared: Base Building · Sandbox · Management
Honey, I Joined a Cult
Shared: Base Building · Cult · Management
Dyson Sphere Program
Shared: Base Building · Management · Sandbox
Cities: Skylines II
Shared: Sandbox · Management · Simulation
Norland
Shared: Base Building · Simulation · Management
Two Point Hospital
Shared: Management · Simulation · Sandbox
Planet Coaster
Shared: Sandbox · Management · Simulation