Games like Space Supermarket Simulator
Games like Space Supermarket Simulator include Supermarket Simulator, X4: Foundations, Cities: Skylines, Big Ambitions, and Kerbal Space Program. We matched them by the tags players give Space Supermarket Simulator on Steam (Simulation, Casual, Space, Economy, and Trading): closest matches first, and among equally close ones the better-known games.

Supermarket Simulator
Shared: Simulation · Economy · Trading

X4: Foundations
Shared: Simulation · Space · Space Sim

Cities: Skylines
Shared: Simulation · Economy · Singleplayer

Big Ambitions
Shared: Simulation · Economy · Singleplayer

Kerbal Space Program
Shared: Simulation · Space · Sandbox

Mall Simulator
Shared: Simulation · Economy · Trading

X Rebirth
Shared: Simulation · Space · Singleplayer

TCG Card Shop Simulator
Shared: Simulation · Economy · Singleplayer

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

Cities: Skylines II
Shared: Simulation · Economy · Sandbox

House Flipper
Shared: Simulation · Singleplayer · Casual

Dyson Sphere Program
Shared: Space · Simulation · Resource Management

Elite Dangerous
Shared: Space · Simulation · Space Sim

Barn Finders
Shared: Simulation · Casual · Economy

SpaceEngine
Shared: Casual · Space · Sandbox

X3: Terran Conflict
Shared: Simulation · Space · Sandbox

Universe Sandbox
Shared: Simulation · Space · Sandbox

Hardspace: Shipbreaker
Shared: Simulation · Space · Singleplayer

Storage Hustle
Shared: Economy · Simulation · Trading

PC Building Simulator
Shared: Simulation · Sandbox · Immersive Sim

Gas Station Simulator
Shared: Simulation · Economy · Casual

Garry's Mod
Shared: Sandbox · Casual · Simulation

King of Retail
Shared: Simulation · Casual · Economy

Space Engineers
Shared: Space · Simulation · Sandbox