Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Spacedeck Sandbox launched in 2013; newer entries below may have overtaken it.

1. 1
   SimpleRockets▲54

   A sandbox space experience 🚀

   2015 · store.steampowered.com · its alternatives →

2. 2
   Universe Sandbox ²▲68

   Create & destroy on an unimaginable scale

   2015 · universesandbox.com · its alternatives →

3. 3
   Oort Online▲65

   A voxel MMORPG sandbox

   2015 · store.steampowered.com · its alternatives →

4. 4
   WebTerm Learn▲139

   Learn the terminal like a game — in a browser sandbox

   Aug 2026 · learn.webterm.app · its alternatives →

5. 5
   Rising World▲73

   A voxel based open-world sandbox game

   2015 · rising-world.net · its alternatives →

6. 6
   Windward▲78

   Tactical naval sandbox action

   2015 · store.steampowered.com · its alternatives →

7. 7
   Planetarium▲61

   An 8-bit planet generator

   2015 · managore.itch.io · its alternatives →

8. 8
   Starbound▲67

   An extraterrestrial sandbox adventure game

   2015 · playstarbound.com · its alternatives →

9. 9
   Project Zomboid▲86

   Open-ended zombie-infested sandbox with gorgeous pixel-art!

   2015 · store.steampowered.com · its alternatives →

10. 10
    Infinifactory▲56

    A 3D Sandbox Assembly Line Puzzle Game by the Space Chem guy

    2015 · zachtronics.com · its alternatives →

11. 11
    PixelSpace▲68

    A tediously accurate scale model of the solar system

    2014 · joshworth.com · its alternatives →

12. 12
    Sandstorm.io▲101

    A better way to run a personal server

    2015 · sandstorm.io · its alternatives →

13. 13
    Triage by Chodeberg▲74

    Reproduce user described bugs in clean sandbox environments

    2d ago · triage.chodeberg.com · its alternatives →

14. 14
    Sticky Boots▲52

    A diabolically difficult space expedition.

    2016 · its alternatives →

15. 15
    99% Invisible: Making Up Ground▲58

    More ships buried under the streets of SF & Moving Sand

    2016 · its alternatives →

16. 16SP
    Silicon Physics Sandbox▲6

    Jul 2026 · silicon.bergkv.ist · its alternatives →

17. 17
    Stellar Interface▲56

    A space-shooter meets a rogue-like-ish game

    2016 · gamejolt.com · its alternatives →

18. 18
    0RBITALIS▲60

    An abstract gravitational puzzler

    2015 · 0rbitalis.com · its alternatives →

19. 19
    Universe Sandbox ²▲5

    create & destroy on an unimaginable scale

    2015 · universesandbox.com · its alternatives →

20. 20TW
    The Web Synthetizer from Space▲8

    2017 · synthfrom.space · its alternatives →

21. 21
    A solar system simulation in the browser▲13

    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 · its alternatives →

22. 22M2
    MMO 2D Space Action Game▲8

    2014 · astralrift.com · its alternatives →

23. 23OS
    Oolite space game in HTML5/WebGL▲8

    2015 · grondilu.github.io · its alternatives →

24. 24AM
    A minimal procgen space golf game inspired by Desert Golfing▲7

    2019 · spatulainteractive.itch.io · its alternatives →

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 →