Games like Tiny Solar System
Games like Tiny Solar System include Kerbal Space Program, SPORE™, Slime Rancher, Goat Simulator 3, and Goat Simulator. We matched them by the tags players give Tiny Solar System on Steam (Casual, Simulation, Physics, Space, and Exploration): closest matches first, and among equally close ones the better-known games.

Kerbal Space Program
Shared: Simulation · Space · Physics

SPORE™
Shared: Simulation · Casual · Exploration

Slime Rancher
Shared: Exploration · Simulation · Casual

Goat Simulator 3
Shared: Physics · Simulation · Exploration

Goat Simulator
Shared: Simulation · Physics · Casual

Superflight
Shared: Casual · Flight · Indie

SpaceEngine
Shared: Casual · Space · 3D

Space Engineers
Shared: Space · Simulation · Physics

Universe Sandbox
Shared: Simulation · Space · Physics

Slime Rancher 2
Shared: Simulation · Casual · Cute

Exo One
Shared: Space · Exploration · Physics

X4: Foundations
Shared: Simulation · Space · Exploration

Placid Plastic Duck Simulator
Shared: Casual · Physics · Simulation

Trailmakers
Shared: Space · Flight · Simulation

Empyrion - Galactic Survival
Shared: Simulation · Space · Exploration

Kerbal Space Program 2
Shared: Space · Physics · Exploration

Totally Accurate Battle Simulator
Shared: Simulation · Physics · Indie

Elite Dangerous
Shared: Space · Simulation · Exploration

Avorion
Shared: Exploration · Space · Flight

Prison Escape Simulator: Dig Out
Shared: Simulation · Casual · Physics

Garry's Mod
Shared: Physics · Casual · Simulation

Hello Kitty Island Adventure
Shared: Simulation · Casual · Exploration

Uncrashed : FPV Drone Simulator
Shared: Simulation · Physics · Flight

Universe Sandbox
Shared: Simulation · Physics · Space