Games like Primitive Society Simulator
Games like Primitive Society Simulator include Manor Lords, Prison Architect, Kingdoms and Castles, Against the Storm, and Dwarf Fortress. We matched them by the tags players give Primitive Society Simulator on Steam (City Builder, Colony Sim, Base Building, Sandbox, and Agriculture): closest matches first, and among equally close ones the better-known games.

Manor Lords
Shared: City Builder · Base Building · Sandbox

Prison Architect
Shared: Base Building · Sandbox · Colony Sim

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

Against the Storm
Shared: City Builder · Base Building · Building

Dwarf Fortress
Shared: Colony Sim · Base Building · City Builder

Timberborn
Shared: City Builder · Colony Sim · Sandbox

Workers & Resources: Soviet Republic
Shared: City Builder · Base Building · Building

RimWorld
Shared: Colony Sim · Base Building · Sandbox

Ostriv
Shared: City Builder · Colony Sim · Base Building

Empires of the Undergrowth
Shared: City Builder · Base Building · Colony Sim

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

Settlement Survival
Shared: City Builder · Colony Sim · Building

Farthest Frontier
Shared: City Builder · Building · Agriculture

Norland
Shared: City Builder · Base Building · Colony Sim

Cities: Skylines
Shared: City Builder · Building · Sandbox

Stonehearth
Shared: City Builder · Colony Sim · Sandbox

Foundation
Shared: City Builder · Sandbox · Building

Banished
Shared: City Builder · Colony Sim · Sandbox

Songs of Syx
Shared: City Builder · Colony Sim · Sandbox

Stronghold Crusader HD (2012)
Shared: City Builder · Colony Sim · Base Building

Frostpunk
Shared: City Builder · Colony Sim · Base Building

Going Medieval
Shared: Colony Sim · Base Building · City Builder

Colony Survival
Shared: Colony Sim · Base Building · Sandbox

Space Haven
Shared: Colony Sim · Base Building · Sandbox