Games like The Spatials: Galactology
Games like The Spatials: Galactology include Oxygen Not Included, Prison Architect, RimWorld, Space Haven, and Manor Lords. We matched them by the tags players give The Spatials: Galactology on Steam (City Builder, Colony Sim, Base Building, Management, and Sandbox): closest matches first, and among equally close ones the better-known games.

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

Prison Architect
Shared: Base Building · Colony Sim · Sandbox

RimWorld
Shared: Colony Sim · Base Building · Sandbox

Space Haven
Shared: Colony Sim · Base Building · Management

Manor Lords
Shared: City Builder · Base Building · Management

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

Dwarf Fortress
Shared: Colony Sim · Base Building · City Builder

Timberborn
Shared: City Builder · Colony Sim · Sandbox

Dyson Sphere Program
Shared: Base Building · Space · Building

Against the Storm
Shared: City Builder · Base Building · Management

Settlement Survival
Shared: City Builder · Colony Sim · Management

Cities: Skylines
Shared: City Builder · Management · Building

Empires of the Undergrowth
Shared: City Builder · Base Building · Colony Sim

Planetbase
Shared: City Builder · Colony Sim · Base Building

Workers & Resources: Soviet Republic
Shared: City Builder · Base Building · Management

Norland
Shared: City Builder · Base Building · Colony Sim

IXION
Shared: City Builder · Colony Sim · Space

The Universim
Shared: City Builder · Colony Sim · Sandbox

The Crust
Shared: Base Building · Colony Sim · City Builder

Foundation
Shared: City Builder · Sandbox · Management

Frostpunk
Shared: City Builder · Colony Sim · Base Building

Banished
Shared: City Builder · Colony Sim · Sandbox

Going Medieval
Shared: Colony Sim · Base Building · City Builder

Ostriv
Shared: City Builder · Colony Sim · Management