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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 - .

Axolo
PullNotifier
Axolo for GitLab
Swarmia
Pullflow
GitLab
Pipie.io
Replace GitLab's spammy Slack notifications with PRFlow. One updating message per MR with CI/CD status and threaded comments for gitlab.com and self-hosted GitLab.

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 | prflow.dev |
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What each product offers, as listed by its team.


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


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Orbiter 9 Netflix Review
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As answered by people managing Orbiter and PRFlow.dev.
PRFlow.dev's answer:
Go backend PostgreSQL DB, React/TypeScript frontend.
PRFlow.dev's answer:
Engineering teams using GitLab.com or self-managed and Slack.
PRFlow.dev's answer:
Engineered for simplicity and security. Native GitLab support.
Share your experience with using Orbiter and PRFlow.dev. 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 PRFlow.dev since Jun 2026.
When comparing Orbiter and PRFlow.dev, 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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PullNotifier - a Github and Slack integration app. The most efficient Pull Request notifications on Slack -> PullNotifier allows you to see your team's latest pull request status without getting spammed with notifications.
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Birds of Steel is developed by Gaijin Entertainment for PlayStation and Xbox.
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