Games like Dwarf Fortress
Games like Dwarf Fortress include RimWorld, Manor Lords, Kingdoms and Castles, Oxygen Not Included, and Prison Architect. We matched them by the tags players give Dwarf Fortress on Steam (Dwarves, Colony Sim, Base Building, Simulation, and Strategy): closest matches first, and among equally close ones the better-known games.

RimWorld
Shared: Colony Sim · Base Building · Strategy

Manor Lords
Shared: Strategy · Base Building · Simulation

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

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

Prison Architect
Shared: Simulation · Base Building · Colony Sim

Against the Storm
Shared: Simulation · Strategy · Base Building

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

Banished
Shared: Colony Sim · City Builder · Simulation

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

Frostpunk
Shared: City Builder · Colony Sim · Strategy

Craft The World
Shared: Dwarves · Colony Sim · Sandbox

Norland
Shared: Simulation · Strategy · Base Building

Space Haven
Shared: Colony Sim · Base Building · Strategy

Cities: Skylines
Shared: Simulation · City Builder · Strategy

Foundation
Shared: Simulation · City Builder · Strategy

Timberborn
Shared: Colony Sim · City Builder · Sandbox

Settlement Survival
Shared: Colony Sim · City Builder · Simulation

Factorio
Shared: Base Building · Strategy · Sandbox

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

Ostriv
Shared: Simulation · Colony Sim · Strategy

Going Medieval
Shared: Colony Sim · Base Building · Strategy

Stonehearth
Shared: Colony Sim · City Builder · Strategy

Planetbase
Shared: Colony Sim · Base Building · City Builder

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