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

Dwarf Fortress
Shared: Colony Sim · Base Building · Dwarves

RimWorld
Shared: Colony Sim · Base Building · Strategy

Prison Architect
Shared: Simulation · Base Building · Colony Sim

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

Manor Lords
Shared: Simulation · Base Building · Strategy

Kingdoms and Castles
Shared: Colony Sim · Simulation · Strategy

Craft The World
Shared: Colony Sim · Dwarves · Sandbox

Against the Storm
Shared: Simulation · Base Building · Strategy

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

Factorio
Shared: Base Building · Sandbox · Strategy

Satisfactory
Shared: Base Building · Crafting · Sandbox

Space Haven
Shared: Colony Sim · Base Building · Strategy

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

Norland
Shared: Simulation · Base Building · Colony Sim

Stonehearth
Shared: Colony Sim · Sandbox · Simulation

Schedule I
Shared: Simulation · Base Building · Management

Settlement Survival
Shared: Colony Sim · Simulation · Sandbox

Dyson Sphere Program
Shared: Base Building · Simulation · Sandbox

Cities: Skylines
Shared: Simulation · Strategy · Sandbox

SPORE™
Shared: Colony Sim · Simulation · Sandbox

Kenshi
Shared: Sandbox · Simulation · Open World

Songs of Syx
Shared: Colony Sim · Strategy · Base Building

Timberborn
Shared: Colony Sim · Sandbox · Base Building

Foundation
Shared: Simulation · Strategy · Sandbox

