Orbital Physics Simulator

Orbital Physics Simulator

Nathan Schmitt · June 23, 2026 · Simulation, Space Sim, Flight, 3D, Minimalist

Orbital Physics Simulator is free to play — no purchase needed. We track it so you know if that ever changes.

PC
Positive89% · 19
This game is free to play. Get it on Steam →

Screenshots

Orbital Physics Simulator price

Orbital Physics Simulator is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About Orbital Physics Simulator

Welcome to a realistic orbital mechanics sandbox set entirely within our solar system. In this simulator, space is a dynamic fabric governed by the laws of real-world physics. From basic Newtonian orbits to the complexities of Einstein’s theories of relativity, every trajectory is bound by the actual equations that dictate the universe.You begin your journey already in orbit around Earth. There are no launch sequences or atmospheric escapes to manage. Instead, you immediately take control of your craft in the vacuum of space, pushing your navigation skills to the absolute edge as you master the mechanics of relativity.

Not a Standard Space Game

Navigating between celestial bodies requires more than just pointing your ship at a planet and pressing forward. Unlike typical space games where travel is immediate or linear, moving through this solar system demands a true understanding of orbital mechanics and general relativity. To move from Earth to targets like Jupiter or Mars, you must carefully plot multi-stage trajectories that account for orbital speeds and gravitational pulls. Executing precise slingshot maneuvers and calculating exact insertion burns are the only ways to reach your destination. One decimal point out of place will sling your craft into the deep void.

True Relativistic Physics

Velocity changes your entire reality. As your vessel approaches a fraction of the speed of light while moving through the solar system, you will witness relativistic effects firsthand.
  • Time Dilation: Watch planetary orbits accelerate around you while your onboard clock slows down. A few minutes of high-velocity travel for you could mean months or years passing for the rest of the solar system.
  • Length Contraction: See the physical geometry of space compress along your line of travel, requiring precise calculations to avoid missing your orbital targets.

Orbital Physics Simulator — game info

Platforms
Windows, Linux / SteamOS
Player modes
Single-player
PC Game Pass
Not included
More games like this:Linux games

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

✦ AI summary

Players praise the game's detail, polish, and fun planet-to-planet exploration mechanics, with many calling it an impressive first release. However, some users report technical issues including an unresponsive white screen, and minor bugs like typos in achievements detract from the experience.

Recommended Aug 3, 2026
First thing I did was complete my orbit of earth without doing a single thing simply staring in awe at the vastness of this game. Then I decided to shoot for the moon, okay way off course, time to figure out how to aim for Mars. I shoot, I miss it. F*** it, I'm already almost out of the solar system. Next thing I do is accidentally break the simulator by reaching the speed of light. 10/10
2 found this helpful
Recommended Aug 29, 2026
Does exactly what it says, Orbital Physics, it's fun if you enjoy the subject matter, and is a nice way to visualize some of the many satellites orbiting Earth.
Recommended Aug 4, 2026
promising, but desperately needs a tutorial and finer control over rotation. the struggle of getting to another body right now is just pointing at it enough. currently this game deals with constant propulsion with unlimited fuel, which also allows it to show its fancy relativistic stuff, and makes every trip a straightish line. being able to see your orbit trajectory in interplanetary and interstellar space would be nice, so you could, you know, actually experience the orbital physics part of the game. a maneuver planner isnt really needed since your spacecraft is just point and shoot, but it would be cool to have one anyways.
Recommended Aug 1, 2026
its fun but it crashes a lot
Recommended Jul 19, 2026
crashed the game by braking the laws of physics
Recommended Jul 14, 2026
A fun simulator that strikes a nice balance between learning and experimentation without feeling overwhelming.

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