Games like Townworks
Games like Townworks include Cities: Skylines, Prison Architect, RimWorld, Cities: Skylines II, and Manor Lords. We matched them by the tags players give Townworks on Steam (Casual, Simulation, Strategy, City Builder, and Colony Sim): closest matches first, and among equally close ones the better-known games.

Cities: Skylines
Shared: Simulation · City Builder · Strategy

Prison Architect
Shared: Simulation · Strategy · Sandbox

RimWorld
Shared: Colony Sim · Strategy · Sandbox

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

Manor Lords
Shared: Strategy · Simulation · City Builder

Banished
Shared: City Builder · Strategy · Simulation

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

Two Point Museum
Shared: Casual · Simulation · Strategy

Game Dev Tycoon
Shared: Simulation · Casual · Strategy

Transport Fever 2
Shared: Simulation · Strategy · City Builder

Dwarf Fortress
Shared: Simulation · Colony Sim · Strategy

Against the Storm
Shared: Simulation · Strategy · City Builder

Two Point Campus
Shared: Simulation · Strategy · Casual

Factorio
Shared: Strategy · Sandbox · Casual

Nodebuster
Shared: Casual · Strategy · Simulation

SPORE™
Shared: Simulation · Colony Sim · Sandbox

Foundation
Shared: Simulation · City Builder · Strategy

Empires of the Undergrowth
Shared: Simulation · Strategy · City Builder

Two Point Hospital
Shared: Simulation · Strategy · Casual

Stonehearth
Shared: City Builder · Colony Sim · Strategy

Dawn of Man
Shared: City Builder · Strategy · Simulation

Transport Fever 3
Shared: Simulation · Casual · City Builder

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

Planet Zoo 2
Shared: Simulation · Casual · Strategy