Games like Universe Sandbox
Games like Universe Sandbox include Kerbal Space Program, Universe Sandbox, Kerbal Space Program 2, SPORE™, and Space Engineers. We matched them by the tags players give Universe Sandbox on Steam (Simulation, Sandbox, Space, Physics, and Science): closest matches first, and among equally close ones the better-known games.
Kerbal Space Program
Shared: Simulation · Space · Sandbox
Universe Sandbox
Shared: Simulation · Sandbox · Space
Kerbal Space Program 2
Shared: Sandbox · Space · Physics
SPORE™
Shared: Sandbox · Simulation · Space
Space Engineers
Shared: Sandbox · Space · Simulation
Garry's Mod
Shared: Sandbox · Physics · Simulation
Hardspace: Shipbreaker
Shared: Simulation · Space · Physics
Spaceflight Simulator
Shared: Sandbox · Simulation · Space
People Playground
Shared: Sandbox · Physics · Simulation
SpaceEngine
Shared: Sandbox · Space · Casual
Goat Simulator
Shared: Simulation · Sandbox · Physics
Totally Accurate Battle Simulator
Shared: Simulation · Sandbox · Physics
Solar Expanse - Space Exploration Manager
Shared: Simulation · Space · Sandbox
Space Engineers 2
Shared: Sandbox · Space · Simulation
BeamNG.drive
Shared: Simulation · Physics · Sandbox
Empyrion - Galactic Survival
Shared: Simulation · Space · Sandbox
Solar 2
Shared: Space · Sandbox · Simulation
Stellaris
Shared: Space · Sandbox · Simulation
Teardown
Shared: Sandbox · Physics · Indie
Poly Bridge
Shared: Simulation · Physics · Sandbox
X4: Foundations
Shared: Simulation · Space · Sandbox
No Man's Sky
Shared: Space · Sandbox · Sci-fi
Elite Dangerous
Shared: Space · Simulation · Sci-fi
House Flipper
Shared: Simulation · Sandbox · Singleplayer