Free games like Space Simulator
Below are 8 free-to-play Steam games similar to Space 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 Space Simulator page.
Ranked picks
- 1
Cell to Singularity - Evolution Never Ends
Free-to-play alternative to Space Simulator — no purchase or trial window. Shares Simulation with Space Simulator.
The epic story of evolution, technology, humanity, and dinosaurs is yours to tap.
- 2
The Orville - Interactive Fan Experience
Free-to-play alternative to Space Simulator — no purchase or trial window. Shares Simulation and Early Access with Space Simulator.
Step aboard the USS Orville (ECV-197), the Planetary Union's finest mid-level exploratory class cruiser. With every room on every deck recreated with painstaking accuracy, you are free to explore the ship at your leisure and engage in all manner of shenanigans!
- 3
b 2
Free-to-play alternative to Space Simulator — no purchase or trial window. Shares Simulation with Space Simulator.
b 2: online multiplayer an alien place you are the bee: fly where you like, play as you like
- 4
Procelio
Free-to-play alternative to Space Simulator — no purchase or trial window. Shares Simulation with Space Simulator.
Procelio is a multiplayer vehicle builder/shooter set amidst a proxy war on the red planet. Build and refine your custom machines from orbit, then pilot them in a distant war against CPU and enemy players.
- 5
Spacelines from the Far Out: Flight School
Free-to-play alternative to Space Simulator — no purchase or trial window.
Spacelines from the Far Out: Flight School is all about getting you prepared to take on the task of running your own Spaceline before launch! Join up to 3 other people to take on the challenges and demands as you ferry people to their destination.
- 6
Prosperous Universe
Free-to-play alternative to Space Simulator — no purchase or trial window. Shares Simulation with Space Simulator.
In Prosperous Universe start your galactic empire by trading on the real-time market exchange with other real players. Build your 1st base from humble beginnings & watch as your business flourishes with complex supply chain strategies. Economics, politics & realism fuel this immersive business MMO.
- 7
Galaxy Idle Clicker
Free-to-play alternative to Space Simulator — no purchase or trial window. Shares Simulation with Space Simulator.
Embark on an interstellar journey with Galaxy Idle Clicker! Conquer galaxies, upgrade your spaceship, and face off against a myriad of enemy ships. With engaging minigames, powerful upgrades, GIC delivers an unparalleled idle space adventure. Join the cosmic conquest today and dominate the universe!
- 8
VR Jetpack Game
Free-to-play alternative to Space Simulator — no purchase or trial window. Shares Simulation with Space Simulator.
Physics-based VR with full freedom of flight. VR that feels and controls like a real jetpack. A real-time multiplayer VR arena.