Games like KitHack Model Club
Games like KitHack Model Club include Kerbal Space Program, Garry's Mod, Space Engineers, BeamNG.drive, and Besiege. We matched them by the tags players give KitHack Model Club on Steam (Moddable, Open World, Vehicular Combat, Indie, and Physics): closest matches first, and among equally close ones the better-known games.

Kerbal Space Program
Shared: Physics · Sandbox · Moddable

Garry's Mod
Shared: Moddable · Sandbox · Physics

Space Engineers
Shared: Sandbox · Open World · Physics

BeamNG.drive
Shared: Physics · Simulation · Open World

Besiege
Shared: Physics · Sandbox · Moddable

People Playground
Shared: Moddable · Sandbox · Physics

Euro Truck Simulator 2
Shared: Open World · Moddable · Simulation

American Truck Simulator
Shared: Open World · Moddable · Simulation

Scrap Mechanic
Shared: Open World · Sandbox · Physics

Kerbal Space Program 2
Shared: Sandbox · Physics · Exploration

Stormworks: Build and Rescue
Shared: Open World · Sandbox · Physics

Aviassembly
Shared: Physics · Sandbox · Open World

CarX Drift Racing Online
Shared: Moddable · Simulation · Sandbox

Car Mechanic Simulator 2018
Shared: Simulation · Building · Sandbox

Project Zomboid
Shared: Open World · Sandbox · Indie

Automation - The Car Company Tycoon Game
Shared: Simulation · Sandbox · Moddable

Satisfactory
Shared: Open World · Sandbox · Crafting

Mon Bazou
Shared: Sandbox · Open World · Exploration

Goat Simulator
Shared: Open World · Simulation · Physics

Poly Bridge
Shared: Physics · Simulation · Sandbox

Terraria
Shared: Sandbox · Open World · Exploration

SimplePlanes
Shared: Physics · Sandbox · Exploration

Car Mechanic Simulator 2021
Shared: Moddable · Simulation · Sandbox

Don't Starve
Shared: Indie · Sandbox · Open World