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

Cities: Skylines
Shared: Simulation · City Builder · Strategy

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

Prison Architect
Shared: Simulation · Strategy · Colony Sim

Manor Lords
Shared: Strategy · Simulation · City Builder

Banished
Shared: Strategy · City Builder · Simulation

Frostpunk
Shared: City Builder · Strategy · Colony Sim

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

Against the Storm
Shared: Strategy · Simulation · City Builder

Foundation
Shared: Simulation · City Builder · Strategy

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

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

Oxygen Not Included
Shared: Colony Sim · Management · Simulation

Planet Zoo
Shared: Simulation · Management · City Builder

Jurassic World Evolution
Shared: Simulation · Strategy · Management

Planet Coaster
Shared: Simulation · Strategy · Management

Transport Fever 2
Shared: Strategy · Simulation · City Builder

Norland
Shared: Strategy · Simulation · City Builder

Ostriv
Shared: Strategy · City Builder · Simulation

Anno 1800
Shared: Strategy · City Builder · Simulation

Captain of Industry
Shared: Simulation · Strategy · Economy

Jurassic World Evolution 2
Shared: Simulation · Strategy · Management

Farthest Frontier
Shared: Strategy · City Builder · Economy

Dwarf Fortress
Shared: Simulation · Strategy · Colony Sim

RimWorld
Shared: Strategy · Colony Sim · Simulation