Games like Wanderers' Outpost
Games like Wanderers' Outpost include Oxygen Not Included, Prison Architect, Kingdoms and Castles, Captain of Industry, and RimWorld. We matched them by the tags players give Wanderers' Outpost on Steam (Colony Sim, Simulation, Base Building, Fantasy, and Resource Management): closest matches first, and among equally close ones the better-known games.

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

Prison Architect
Shared: Simulation · Colony Sim · Base Building

Kingdoms and Castles
Shared: Colony Sim · Simulation · Resource Management

Captain of Industry
Shared: Base Building · Simulation · Resource Management

RimWorld
Shared: Colony Sim · Base Building · Simulation

Manor Lords
Shared: Simulation · Base Building · Colony Sim

Dwarf Fortress
Shared: Colony Sim · Base Building · Simulation

Frostpunk
Shared: Colony Sim · Resource Management · Base Building

Against the Storm
Shared: Simulation · Base Building · Colony Sim

Factorio
Shared: Base Building · Resource Management · Crafting

Hammerting
Shared: Colony Sim · Base Building · Simulation

Empires of the Undergrowth
Shared: Simulation · Base Building · Colony Sim

Cities: Skylines
Shared: Simulation · Management · Economy

Norland
Shared: Simulation · Colony Sim · Base Building

Workers & Resources: Soviet Republic
Shared: Simulation · Base Building · Colony Sim

Mind Over Magic
Shared: Colony Sim · Simulation · Base Building

Kingdoms Reborn
Shared: Colony Sim · Base Building · Management

Factory Town
Shared: Base Building · Colony Sim · Resource Management

Ostriv
Shared: Simulation · Colony Sim · Base Building

Supermarket Simulator
Shared: Simulation · Economy · Management

Stranded: Alien Dawn
Shared: Base Building · Simulation · Colony Sim

Tavern Manager Simulator 🍻
Shared: Simulation · Economy · Management

Academia : School Simulator
Shared: Colony Sim · Base Building · Simulation

Potion Craft: Alchemist Simulator
Shared: Simulation · Crafting · Management