Games like Mars Colonization
Games like Mars Colonization include Totally Accurate Battle Simulator, Planet Coaster, Cities: Skylines, House Flipper, and RimWorld. We matched them by the tags players give Mars Colonization on Steam (Strategy, Adventure, Casual, Simulation, and 3D): closest matches first, and among equally close ones the better-known games.

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Adventure

Planet Coaster
Shared: Simulation · Strategy · Singleplayer

Cities: Skylines
Shared: Simulation · Strategy · Singleplayer

House Flipper
Shared: Simulation · Singleplayer · Casual

RimWorld
Shared: Strategy · Colony Sim · Base Building

Prison Architect
Shared: Simulation · Strategy · Colony Sim

Slime Rancher 2
Shared: Singleplayer · Adventure · Colorful

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

Manor Lords
Shared: Strategy · Simulation · Base Building

Banished
Shared: Strategy · Simulation · Colony Sim

Mini Motorways
Shared: Strategy · Casual · Simulation

Planet Coaster 2
Shared: Strategy · Simulation · 3D

Slime Rancher
Shared: Adventure · Singleplayer · Colorful

Against the Storm
Shared: Strategy · Simulation · Base Building

Plague Inc: Evolved
Shared: Strategy · Simulation · Casual

Game Dev Tycoon
Shared: Strategy · Simulation · Casual

Bloons TD 6
Shared: Strategy · Singleplayer · Casual

Frostpunk
Shared: Strategy · Colony Sim · City Builder

ISLANDERS
Shared: Strategy · Singleplayer · Building

Empires of the Undergrowth
Shared: Strategy · Simulation · Base Building

Ostriv
Shared: Strategy · Simulation · Colony Sim

Workers & Resources: Soviet Republic
Shared: Strategy · Simulation · Base Building

Two Point Hospital
Shared: Simulation · Strategy · Singleplayer

Home Behind
Shared: Adventure · Casual · Strategy