Games like Portolan
Games like Portolan include Cities: Skylines, Game Dev Tycoon, Manor Lords, Prison Architect, and Anno 1800. We matched them by the tags players give Portolan on Steam (Simulation, Strategy, Sandbox, 2D, and Text-Based): closest matches first, and among equally close ones the better-known games.

Cities: Skylines
Shared: Simulation · Strategy · Sandbox

Game Dev Tycoon
Shared: Simulation · Strategy · Management

Manor Lords
Shared: Strategy · Simulation · Sandbox

Prison Architect
Shared: Simulation · Sandbox · Strategy

Anno 1800
Shared: Strategy · Simulation · Economy

News Tower
Shared: Simulation · Strategy · Sandbox

Cities: Skylines II
Shared: Simulation · Sandbox · Strategy

Totally Accurate Battle Simulator
Shared: Simulation · Sandbox · Strategy

Planet Coaster
Shared: Simulation · Sandbox · Strategy

Oxygen Not Included
Shared: 2D · Simulation · Sandbox

Transport Fever 2
Shared: Simulation · Strategy · Sandbox

Jurassic World Evolution
Shared: Simulation · Strategy · Sandbox

Tropico 5
Shared: Strategy · Simulation · Sandbox

Crusader Kings III
Shared: Strategy · Simulation · Historical

Foundation
Shared: Simulation · Strategy · Sandbox

鬼谷八荒 Tale of Immortal
Shared: Simulation · Sandbox · Management

Railway Empire
Shared: Simulation · Strategy · Economy

Workers & Resources: Soviet Republic
Shared: Strategy · Simulation · Historical

Jurassic World Evolution 2
Shared: Simulation · Sandbox · Strategy

Banished
Shared: Strategy · Simulation · Sandbox

Anno 117: Pax Romana
Shared: Strategy · Simulation · Sandbox

Victoria 3
Shared: Simulation · Strategy · Economy

Against the Storm
Shared: Simulation · Strategy · Management

RimWorld
Shared: Strategy · Sandbox · Simulation