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Alternatives

Products that do what Merge Planets: Space Puzzle does

3D physics space puzzle — merge planets to reignite the Sun!

  1. 1AO

    Hello HN! Sharing a recent side project of mine, the Atlas of Space, that I built out to explore the Solar System. As a long-time space nerd, I realized recently that I didn't have a good intuition on the scale, speed, and relative orientation of the celestial bodies around us. So over the break I built out a kind of spatial Wikipedia to click around and learn about planets, moons, asteroids, and other bodies orbiting the Sun. The physics is all simulated in the browser using simple Newtonian mechanics. There's a lot left to do from here, including modeling objects in non-Keplerian orbits…

    2025 · atlasof.space

  2. 2
    Blox90

    A beautifully minimalist 3D physics game.

    2016

  3. 3

    Command a spaceship with your friends

    2014

  4. 4

    Create little planets from your panoramic images

    2015

  5. 5

    Walk among the planets via geospatial augmented reality

    2016

  6. 6IB
  7. 7

    Gravity WebGL experiment in the Solar System

    2016

  8. 8
    AstroGrid113

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

    Apr 2026 · velonspace.com

  9. 9

    A number puzzle with rotating rings — spin, align, merge.

    Mar 2026 · apps.apple.com

  10. 10GI

    Just for fun and self education, I've built this over a weekend to teach myself why orbits exist, not just show planets going around. Something that was never clearly explain to me in school. It opens with a guided tour that builds the idea up step by step: two bodies and the equal/opposite force, inertia (the Sun is removed and Earth just drifts straight), then "an orbit is falling and continuously missing," cosmic velocities with a little rocket, Voyager 1 & 2's real gravity assists (the clock runs the actual 1977–1989 dates so the planets orbit into their grand-tour alignment and the…

    Jun 2026 · qunabu.github.io

  11. 11

    A chaotic and cooperative card game.

    2015

  12. 12

    Mobile game that teaches you the logic of coding.

    2018

  13. 13IW

    I’ve been working on a puzzle game for a few years as a side project. The game is based on a small region of tiles in a grid that is mirrored, modified, and mirrored again. It’s based on a novel phenomenon I noticed where, once these mutations happen a few times, the original region can be hard to recognize. You have a feeling there are symmetries in the image, but they are just out of grasp. Going further, if only part of the region is visible, such as mirroring off the edge of the board, it adds to the feeling and it becomes a satisfying puzzle to solve. I originally published this on the…

    2024 · hidden-mirrors.com

  14. 14

    A strategy puzzle game for the smart ones

    2017

  15. 15

    Best fruit merging game experience across ios and android.

    Jul 2026 · fruitmerge.codematics.co

  16. 16

    Hello, I am the creator and maintainer of Stellarium Mobile. I have been working in my free time for about a year on this new project Galaxium, that is more about traveling in the universe rather than looking at the sky from Earth. It is still experimental, and at the moment I am not sure what it will become. Feedback is welcome.

    13d ago · galaxium.app

  17. 17

    A minimalist, physics puzzle game

    2015

  18. 18SP
  19. 19

    Drop. Fuse. Ascend.

    4d ago · apps.apple.com

  20. 20

    A tediously accurate scale model of the solar system

    2014

  21. 21
    BLUK82

    Embark on a magical physics journey!

    2016

  22. 22

    The nostalgic tile-matching puzzle game in its new glory

    2022

  23. 23
    Ringoo28

    Merge Block Puzzle

    2018

  24. 24AS

    I didn't realize Universe Sandbox ran on MacOS, and I was in the mood to play around a bit. Some functions it's got: - Random system generation - Sonification is super fun too - Habitability Simulation (Just for fun, don't cite this please) - Replacing, spawning, deleting objects I've had tons of fun building this, so I hope someone else can share the joy. It's free and runs in the browser. I'd love to hear any feedback. I think this is at a state where I might leave it as it is, but if people are interested in other features, maybe I'll keep working on it. I've kept saying I'll stop working…

    Dec 2025 · luna.watermelonson.com

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