Free games like Solar System Simulator
Below are 10 free-to-play Steam games similar to Solar System Simulator, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Solar System Simulator page.
Ranked picks
- 1
Bongo Cat
Free-to-play alternative to Solar System Simulator — no purchase or trial window. Shares Indie and Simulation with Solar System Simulator.
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
- 2
The Looker
Free-to-play alternative to Solar System Simulator — no purchase or trial window. Shares Indie with Solar System Simulator.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 3
Virtual Cottage
Free-to-play alternative to Solar System Simulator — no purchase or trial window. Shares Indie and Simulation with Solar System Simulator.
Virtual Cottage gives you a comfy place to rest and be productive without any distractions. Open the game, set yourself a goal and enjoy the atmosphere.
- 4
Steam Engine Simulator
Free-to-play alternative to Solar System Simulator — no purchase or trial window. Shares Simulation with Solar System Simulator.
The Steam Engine Simulator shown on AngeTheGreat's YouTube channel.
- 5
Magic Archery
Free-to-play alternative to Solar System Simulator — no purchase or trial window. Shares Indie and Simulation with Solar System Simulator.
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
- 6
The Lab
Free-to-play alternative to Solar System Simulator — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 7
Control, I'm Not Coming Back
Free-to-play alternative to Solar System Simulator — no purchase or trial window. Shares Indie with Solar System Simulator.
Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.
- 8
OnlyCans: Thirst Date
Free-to-play alternative to Solar System Simulator — no purchase or trial window. Shares Indie and Simulation with Solar System Simulator.
Feel The Fizz Inside You™ with the brand new Shize™ Collection!
- 9
Starship Simulator
Free-to-play alternative to Solar System Simulator — no purchase or trial window. Shares Simulation with Solar System Simulator.
Explore a scientifically accurate Milky Way galaxy and discover distant uncharted worlds, while having unrestricted access to every deck of your Magellan Class deep space exploration vessel. Interact with numerous fully simulated ship systems, or simply relax in the bar and watch the stars drift by.
- 10
Lunar Odyssey
Free-to-play alternative to Solar System Simulator — no purchase or trial window. Shares Simulation with Solar System Simulator.
Don your xEMU Spacesuit, explore the Orontius Crater, and Lunar Module in an immersive first-person VR experience with out of this world accuracy and interaction. Follow real-life procedures, launch the Apollo-era Lunar Module, play Space Golf, and experience the moon like never before.