
FlightGear
X-Plane
Birds of Steel
Digital Combat Simulator
Microsoft Flight Simulator X
IL-2 Sturmovik: 1946
Flight Simulator: VR
Orbiter is a realistic 3D real-time space flight simulator program. Official site with free download. DownloadDownload mirror 1 Europe - Textures - Gallery - Links - .
Universe Sandbox
Galaxy Engine
Space Crash Simulator
Space Simulation Toolkit
Celestia
Space Engine
Galaxy Map
Education & Reference

Which is more popular?
Based on our record, Orbiter seems to be more popular. It has been mentioned 38 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
OSP
OpenSPH
|
|
|---|---|---|
| Website | orbit.medphys.ucl.ac.uk | pavelsevecek.github.io |
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.

No analysis of Orbiter yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Orbiter 9 Netflix Review
More videos
No OpenSPH videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Orbiter and OpenSPH. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

You can use realistic simulators like: http://orbit.medphys.ucl.ac.uk/ (it's free and open-source: https://github.com/orbitersim/orbiter ) so it means that now the main problem is... - Source: Hacker News / over 1 year ago
Orbiter is more of a hardcore spacesim than a "game" in traditional sense, but also qualify. Source: almost 3 years ago
Orbiter does it, but I doubt the solution they use (whatever it is) would work with the game engine Nova uses. Reentry does it too. I guess it depends on how the game has been coded. Probably difficult to implement if it wasn't designed... Source: about 3 years ago
Tracking OpenSPH since Mar 2026.
When comparing Orbiter and OpenSPH, you can also consider the following products.

The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project. It also simulates space flight in Earth's orbit. It's flight dynamics engine (JSBSim) is used in a 2015 NASA benchmark.
Compare FlightGear to Orbiter or OpenSPH:

Universe Sandbox ² is a physics-based space simulator where you can simulate Events and even break physics and friction with certain features.
Compare Universe Sandbox to Orbiter or OpenSPH:

The world's most advanced flight simulator just got an upgrade. Download the free demo today for Windows, macOS, & Linux.
Compare X-Plane to Orbiter or OpenSPH:
Simulate the physics of the Universe on a large scale and create stunning visuals. Play with intergalactic interactions, smash planets together and even create the Big Bang itself!
Compare Galaxy Engine to Orbiter or OpenSPH:

Birds of Steel is developed by Gaijin Entertainment for PlayStation and Xbox.
Compare Birds of Steel to Orbiter or OpenSPH:

Games and Education & Reference
Compare Space Crash Simulator to Orbiter or OpenSPH: