Games like A Merchant's Promise
Games like A Merchant's Promise include BeamNG.drive, Euro Truck Simulator 2, SnowRunner, American Truck Simulator, and Mon Bazou. We matched them by the tags players give A Merchant's Promise on Steam (Simulation, Shop Keeper, Walking Simulator, Exploration, and Immersive Sim): closest matches first, and among equally close ones the better-known games.

BeamNG.drive
Shared: Simulation · Physics · Sandbox

Euro Truck Simulator 2
Shared: Simulation · Exploration · Automobile Sim

SnowRunner
Shared: Simulation · Exploration · Automobile Sim

American Truck Simulator
Shared: Simulation · Automobile Sim · Exploration

Mon Bazou
Shared: Exploration · Sandbox · Automobile Sim

The Long Dark
Shared: Exploration · Simulation · Survival

My Winter Car
Shared: Simulation · Automobile Sim · Life Sim

Stormworks: Build and Rescue
Shared: Sandbox · Immersive Sim · Physics

My Summer Car
Shared: Simulation · Automobile Sim · Survival

Space Engineers
Shared: Simulation · Sandbox · Physics

Kerbal Space Program
Shared: Simulation · Physics · Sandbox

Besiege
Shared: Simulation · Physics · Sandbox

CarX Drift Racing Online
Shared: Simulation · Sandbox · Physics

Internet Cafe Simulator 2
Shared: Simulation · Exploration · Sandbox

Kenshi
Shared: Sandbox · Simulation · Immersive Sim

PC Building Simulator
Shared: Simulation · Immersive Sim · Sandbox

Drive Beyond Horizons
Shared: Exploration · Simulation · Automobile Sim

Empyrion - Galactic Survival
Shared: Simulation · Exploration · Sandbox

Goat Simulator 3
Shared: Simulation · Exploration · Physics

Kerbal Space Program 2
Shared: Exploration · Sandbox · Simulation

Garry's Mod
Shared: Sandbox · Physics · Simulation

Junkyard Simulator
Shared: Simulation · Exploration · Sandbox

Universe Sandbox
Shared: Simulation · Sandbox · Physics

My Garage
Shared: Simulation · Automobile Sim · Sandbox