Games like Adaptory
Games like Adaptory include RimWorld, Oxygen Not Included, Stationeers, Prison Architect, and Dwarf Fortress. We matched them by the tags players give Adaptory on Steam (Simulation, Colony Sim, Base Building, Story Rich, and Indie): closest matches first, and among equally close ones the better-known games.

RimWorld
Shared: Colony Sim · Base Building · Survival

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

Stationeers
Shared: Base Building · Colony Sim · Survival

Prison Architect
Shared: Simulation · Base Building · Colony Sim

Dwarf Fortress
Shared: Colony Sim · Simulation · Base Building

Factorio
Shared: Base Building · Automation · Resource Management

Dyson Sphere Program
Shared: Base Building · Simulation · Automation

Frostpunk
Shared: Colony Sim · Survival · Resource Management

Banished
Shared: Colony Sim · Simulation · Indie

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

This War of Mine
Shared: Survival · Simulation · Base Building

Space Haven
Shared: Colony Sim · Base Building · Simulation

Planetbase
Shared: Colony Sim · Base Building · Simulation

The Last Caretaker
Shared: Base Building · Survival · Automation

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

Endzone - A World Apart
Shared: Simulation · Survival · Base Building

Manor Lords
Shared: Simulation · Base Building · Colony Sim

Settlement Survival
Shared: Colony Sim · Simulation · Survival

Flotsam
Shared: Colony Sim · Base Building · Survival

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

Timberborn
Shared: Colony Sim · Base Building · Automation

Satisfactory
Shared: Base Building · Automation · Resource Management

Going Medieval
Shared: Colony Sim · Base Building · Survival

Ostriv
Shared: Simulation · Colony Sim · Base Building