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Life & fun · alternatives · 2026

24 alternatives to Cygnus-X1 – A Thrust Vectoring Model Rocket Flight Computer

A thrust-vectoring model rocket flight computer. Comes with all you need to keep your rocket pointing up. - AdamMarciniak/CygnusX1

Cygnus-X1 is a flight computer for model rockets that enables thrust vectoring, a technique for controlling rocket direction by adjusting engine thrust angle. Designed for hobbyists and model rocket enthusiasts, it… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Cygnus-X1 – A Thrust Vectoring Model Rocket Flight Computer launched in 2020; newer entries below may have overtaken it.

  1. 1

    Fully automated SpaceX ISS Dragon docking simulator system. - danirukun/spacex-iss-docking-sim-autopilot

    2020 · github.com · its alternatives →

  2. 2

    I use this library I made for Vectors and Quaternions in many personal projects. I've open-sourced it, in case anyone else would get use out of it. I use this on various projects, including quadcopter firmware, a graphics engine, a cosmology simulation, and several molecular dynamics applications. No_std compatible.

    2025 · github.com · its alternatives →

  3. 3

    I (17y/o) have been developing a rocket launch simulation that allows the user to explore what it's like launching a rocket from earth and putting it into orbit. This idea originally started as an educational simulation but as i've gone more down the rabbit hole the more i've wanted to make it realistic. The problem is that I've never had a formal orbital mechanics class or anything like that so I don't know what I'm missing, what I currently have implemented is: Variable gravity Variable Atmospheric drag (US Standard Atmosphere 1976) Multi-stage rockets Closed-loop guidance /…

    Jan 2026 · donutthejedi.com · its alternatives →

  4. 4

    Try (and fail) to land Elon Musk's SpaceX rocket

    2015 · scratch.mit.edu · its alternatives →

  5. 5

    Features include: - Several preset periodic orbits: the classic Figure-8, plus newly discovered 3D solutions from Li and Liao's recent database of 10,000+ orbits (https://arxiv.org/html/2508.08568v1) - Full 3D camera controls (rotate/pan/zoom) with body-following mode - Force and velocity vector visualization - Timeline scrubbing to explore the full orbital period The 3D presets are particularly interesting. Try "O₂(1.2)" or "Piano O₆(0.6)" from the Load Presets menu to see configurations where bodies weave in and out of the orbital plane. Most browser…

    Nov 2025 · trisolarchaos.com · its alternatives →

  6. 6

    I got pretty good at (and very addicted to) the lunar lander game from a few days ago... so I decided to make an autopilot for the lander based on what I felt like was the best strategy! Now I can have perfect landings every time without lifting a finger :D Writing the autopilot code was a lot more fun than I expected! It felt a bit like programming a robot. Source code: https://github.com/szhu/lunar-lander-autopilot Original lander HN post: https://news.ycombinator.com/item?id=35032506

    2023 · szhu.github.io · its alternatives →

  7. 7

    Inspiring the next generation of spaceflight, interactively

    2021 · its alternatives →

  8. 8

    It's been closed source for a long time while I worked on it on and off as a hobby research project, but yesterday the repo was made public for the first time under the MPL 2.0 license. A feature reel showing its capabilities can be found here: https://ktstephano.github.io/rendering/stratusgfx/feature_re... A technical breakdown of a single frame can be found here: https://ktstephano.github.io/rendering/stratusgfx/frame_anal... It's still in a very beta state (bugs and instability expected), but I felt like it was a good time to make it…

    2023 · github.com · its alternatives →

  9. 9

    Today is the 55th anniversary of Apollo 8. I figured it would be fun to make a CAD model with a space for a model rocket engine and also as an augmented reality model. The tutorial is for Fusion360 but the steps can be adapted to most CAD programs. I would love to know what you all think!

    2022 · makezine.com · its alternatives →

  10. 10

    Pilot the SpaceX Dragon 2 vehicle to the ISS!

    2020 · iss-sim.spacex.com · its alternatives →

  11. 11
    T-Minus▲110

    Track SpaceX, NASA, ULA, Rocket Lab and other launches

    2021 · apps.apple.com · its alternatives →

  12. 12AV

    Find information, resources and relevant links for liuchengxu.org. This domain may be for sale.

    2017 · vim.liuchengxu.org · its alternatives →

  13. 13

    The design platform for complex engineering systems

    Apr 2026 · systellar-space.com · its alternatives →

  14. 14

    Spacemacs for Neovim—link to layers 👉. Contribute to Tehnix/spaceneovim development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  15. 15

    Hey HN! We are the co-founders of Elodin (https://elodin.systems/), a code-first physics simulation framework. We just open-sourced our core libraries on Github: https://github.com/elodin-sys/elodin Have you ever wondered what happens when a satellite is first placed into orbit? It turns out that often, they tumble out of control, end over end, in a miraculous fight against stability. Check out our demo here of a control system attempting to rectify this: https://app.elodin.systems/sandbox/hn/cube-sat The spacecraft does not…

    2024 · github.com · its alternatives →

  16. 16
    Cai▲179

    Hi HN, Cai runs actions on your selection via ⌥C, pick an action (AI, shell, GitHub issue, Linear ticket), done. Bundled local model (MLX Community), create custom actions with prompts, scripts and more. Free, MIT. Built after my Raycast extension sat in review queue for 3+ months. Wanted no typing, no app switching, no cloud. Repo: https://github.com/cai-layer/cai Demo: https://youtu.be/LH2MYNQ_wsk

    Apr 2026 · getcai.app · its alternatives →

  17. 17

    Launch rockets that are cheaper than SpaceX's 🚀

    2018 · play.google.com · its alternatives →

  18. 18FB

    _Vector Defense_ is a retro vector graphics style tower defense game (demo). This was a holiday "weekend" project. I wanted to recreate some of the fun I had in the past with https://en.wikipedia.org/wiki/GeoDefense and one other (Android?) game that may predate GeoDefense, but which was fixed grid and placement. Creation Details I "wrote" this in English. 99% of my development came from carefully articulated directions and requests from me to Gemini 3 (usually planning mode, in Antigravity IDE). Music is also AI generated via Suno.com, from my prompts. SFX are samples…

    Sep 2026 · michaelteter.com · its alternatives →

  19. 19
    AstroGrid▲113

    Explore the entire universe in your browser, in real 3D

    Apr 2026 · velonspace.com · its alternatives →

  20. 20

    A tediously accurate scale model of the solar system

    2014 · joshworth.com · its alternatives →

  21. 21

    I've been working on this for a while now, and I'm happy to share! I've been into launching weather balloons for a few years. One aspect of the hobby that really drew me in was the tracking side of things. Tracking systems let you follow the balloon's position throughout the flight and, most importantly, know exactly where it lands so you can recover the instrumentation. APRS is what I started out using during my first few years in the hobby, after I got my amateur radio license in 2020 (W0MXX). I designed a few small boards using the trackuino…

    2025 · github.com · its alternatives →

  22. 22

    Zero-gravity gaming chair & workstation

    2020 · cluvens.net · its alternatives →

  23. 23

    Tabs, splits, and tmux work fine until you have several projects open with logs, tests, and long-running shells. I kept rebuilding context instead of resuming work. Horizon puts shells on an infinite canvas. You can arrange them into workspaces and reopen later with layout, scrollback, and history intact. Built in 3 days with Claude/Codex, dogfooding the workflow as I went. Feedback and contributions welcome.

    Mar 2026 · github.com · its alternatives →

  24. 24RD

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →