Games like Empires in Ruins
Games like Empires in Ruins include Manor Lords, Stronghold: Definitive Edition, Workers & Resources: Soviet Republic, Crusader Kings III, and Against the Storm. We matched them by the tags players give Empires in Ruins on Steam (Wargame, Sandbox, Tower Defense, City Builder, and RTS): closest matches first, and among equally close ones the better-known games.
Manor Lords
Shared: City Builder · Sandbox · Grand Strategy
Stronghold: Definitive Edition
Shared: City Builder · Sandbox · RTS
Workers & Resources: Soviet Republic
Shared: City Builder · Grand Strategy · Base Building
Crusader Kings III
Shared: Grand Strategy · Sandbox · RPG
Against the Storm
Shared: City Builder · Base Building · Grand Strategy
Kingdoms and Castles
Shared: City Builder · Sandbox · Base Building
Empires of the Undergrowth
Shared: City Builder · Base Building · Sandbox
Medieval Kingdom Wars
Shared: RTS · Grand Strategy · City Builder
Stronghold HD (2012)
Shared: City Builder · Sandbox · Tower Defense
Foundation
Shared: City Builder · Sandbox · Simulation
Stronghold Crusader: Definitive Edition
Shared: City Builder · Sandbox · Tower Defense
Lessaria: Fantasy Kingdom Sim
Shared: City Builder · RTS · Tower Defense
RimWorld
Shared: Sandbox · Base Building · Strategy
Total War: WARHAMMER
Shared: RPG · RTS · Grand Strategy
They Are Billions
Shared: Base Building · Tower Defense · RTS
The Riftbreaker
Shared: Tower Defense · Base Building · Sandbox
Prison Architect
Shared: Sandbox · City Builder · Base Building
Norland
Shared: City Builder · Base Building · Sandbox
Songs of Syx
Shared: City Builder · Sandbox · Grand Strategy
Ultimate Epic Battle Simulator 2
Shared: Sandbox · Wargame · RTS
Cities: Skylines
Shared: City Builder · Sandbox · Simulation
Infection Free Zone
Shared: City Builder · Base Building · RTS
Kingdom Two Crowns
Shared: Tower Defense · City Builder · Base Building
Stronghold Crusader HD (2012)
Shared: City Builder · Sandbox · Base Building