Games like Mox Modular
Games like Mox Modular include Kingdoms and Castles, Banished, Prison Architect, Foundation, and Frostpunk. We matched them by the tags players give Mox Modular on Steam (City Builder, Simulation, Colony Sim, Relaxing, and Resource Management): closest matches first, and among equally close ones the better-known games.

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

Banished
Shared: City Builder · Colony Sim · Simulation

Prison Architect
Shared: Simulation · Colony Sim · City Builder

Foundation
Shared: City Builder · Simulation · Resource Management

Frostpunk
Shared: City Builder · Resource Management · Colony Sim

Cities: Skylines
Shared: City Builder · Simulation · Building

Farthest Frontier
Shared: City Builder · Resource Management · Building

Cities: Skylines II
Shared: City Builder · Simulation · Building

Manor Lords
Shared: City Builder · Simulation · Strategy

Ostriv
Shared: City Builder · Simulation · Colony Sim

Against the Storm
Shared: Simulation · City Builder · Strategy

Oxygen Not Included
Shared: Colony Sim · Resource Management · Simulation

Workers & Resources: Soviet Republic
Shared: City Builder · Simulation · Strategy

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

IXION
Shared: City Builder · Colony Sim · Resource Management

Empires of the Undergrowth
Shared: Simulation · City Builder · Colony Sim

Anno 1800
Shared: City Builder · Simulation · Economy

Tavern Master
Shared: Simulation · Resource Management · City Builder

Norland
Shared: Simulation · City Builder · Colony Sim

Dwarf Fortress
Shared: Colony Sim · Simulation · City Builder

Fabledom
Shared: City Builder · Colony Sim · Relaxing

Captain of Industry
Shared: Simulation · Resource Management · City Builder

Pharaoh™: A New Era
Shared: City Builder · Simulation · Colony Sim

Settlement Survival
Shared: City Builder · Colony Sim · Simulation