Games like Island Market Simulator
Games like Island Market Simulator include Supermarket Simulator, Stardew Valley, Farming Simulator 25, House Flipper, and Cities: Skylines. We matched them by the tags players give Island Market Simulator on Steam (Simulation, Online Co-Op, Management, Casual, and Multiplayer): closest matches first, and among equally close ones the better-known games.

Supermarket Simulator
Shared: Simulation · Management · Multiplayer

Stardew Valley
Shared: Multiplayer · Simulation · Life Sim

Farming Simulator 25
Shared: Simulation · Multiplayer · Management

House Flipper
Shared: Simulation · Multiplayer · Casual

Cities: Skylines
Shared: Simulation · Management · Strategy

Waterpark Simulator
Shared: Simulation · Management · Multiplayer

Game Dev Tycoon
Shared: Simulation · Management · Casual

ContractVille
Shared: Simulation · Online Co-Op · Multiplayer

Farming Simulator 22
Shared: Simulation · Multiplayer · Management

Grocery Store Simulator
Shared: Online Co-Op · Simulation · Multiplayer

Garry's Mod
Shared: Multiplayer · Casual · Simulation

Planet Coaster
Shared: Simulation · Management · Building

Planet Zoo
Shared: Simulation · Management · Building

Bloons TD 6
Shared: Online Co-Op · Multiplayer · Strategy

PC Building Simulator
Shared: Simulation · Management · Building

Palia
Shared: Multiplayer · Life Sim · Online Co-Op

Cities: Skylines II
Shared: Simulation · Management · Building

Gas Station Simulator
Shared: Simulation · Management · Casual

Two Point Hospital
Shared: Simulation · Management · Building

TCG Card Shop Simulator
Shared: Simulation · Management · Economy

Two Point Museum
Shared: Simulation · Casual · Strategy

Startup Company
Shared: Simulation · Management · Casual

Retro Rewind - Video Store Simulator
Shared: Simulation · Management · Casual

Jurassic World Evolution
Shared: Simulation · Management · Building