Games like Celestial Empire: Prologue
Games like Celestial Empire: Prologue include Manor Lords, Against the Storm, Workers & Resources: Soviet Republic, Ostriv, and Kingdoms and Castles. We matched them by the tags players give Celestial Empire: Prologue on Steam (Strategy, City Builder, Colony Sim, Simulation, and Management): closest matches first, and among equally close ones the better-known games.

Manor Lords
Shared: Strategy · City Builder · Simulation

Against the Storm
Shared: Strategy · City Builder · Simulation

Workers & Resources: Soviet Republic
Shared: Strategy · City Builder · Simulation

Ostriv
Shared: Strategy · City Builder · Simulation

Kingdoms and Castles
Shared: City Builder · Colony Sim · Strategy

Cities: Skylines
Shared: City Builder · Simulation · Strategy

Empires of the Undergrowth
Shared: Strategy · City Builder · Simulation

Prison Architect
Shared: Simulation · Strategy · Colony Sim

Frostpunk
Shared: City Builder · Strategy · Colony Sim

Banished
Shared: City Builder · Strategy · Colony Sim

Dwarf Fortress
Shared: Colony Sim · Strategy · Simulation

Norland
Shared: Strategy · City Builder · Simulation

Farthest Frontier
Shared: City Builder · Strategy · Building

RimWorld
Shared: Colony Sim · Strategy · Base Building

Cities: Skylines II
Shared: City Builder · Simulation · Building

Foundation
Shared: City Builder · Strategy · Simulation

Oxygen Not Included
Shared: Colony Sim · Base Building · Building

Settlement Survival
Shared: City Builder · Colony Sim · Building

Endzone - A World Apart
Shared: City Builder · Strategy · Simulation

Dawn of Man
Shared: City Builder · Colony Sim · Strategy

Cataclismo
Shared: Strategy · City Builder · Simulation

Timberborn
Shared: City Builder · Colony Sim · Building

Whiskerwood
Shared: Strategy · City Builder · Simulation

Going Medieval
Shared: Strategy · Colony Sim · City Builder