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Orbiter is a realistic 3D real-time space flight simulator program. Official site with free download. DownloadDownload mirror 1 Europe - Textures - Gallery - Links - .

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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.
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| Website | orbit.medphys.ucl.ac.uk | opalstack.com |
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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 / about 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: almost 3 years ago
Tracking Opalstack since Sep 2023.
When comparing Orbiter and Opalstack, 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.
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The world's most advanced flight simulator just got an upgrade. Download the free demo today for Windows, macOS, & Linux.
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Birds of Steel is developed by Gaijin Entertainment for PlayStation and Xbox.
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Digital Combat Simulator is a Free-to-play, Single and Multiplayer Combat Flight Simulation developed by Eagle Dynamics and published by The Fighter Collection.
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Microsoft Flight Simulator X is an exciting Open World, Realistic, Single and Multiplayer Flight Simulation developed by ACES Game Studio and published by Microsoft Game Studios.
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Ace Combat: Assault Horizon combines the elements of Action, Military-themed, Arcade, and Flight Simulation developed by Namco and published by Namco Bandai Games.
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