Alternatives

Products that do what Stillsky: An Atmospheric Adventure does

Explore Earth with 3 Suns and Face the 3 Body Problem

1. 1
   No Man's Sky▲272

   Explore a nearly endless procedurally generated universe

   2016

2. 2
   Flee Earth▲89

   Mobile game where user controls a UFO and avoids asteroids

   2021

3. 3
   Alto's Odyssey▲263

   Discover the endless desert. A beautiful game for mobile.

   2018

4. 4
   AstroGrid▲113

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

   Apr 2026

5. 5
   Just One Earth▲135

   We only have one earth. Let's save it. 🌏🔥

   2020

6. 6
   Frostpunk 2▲248

   Revisit the Frostland 30 years after the Great Storm

   2024

7. 7
   Astroneer▲98

   A game of aerospace industry and interplanetary exploration

   2015

8. 8
   gravity.js - Beta▲112

   Gravity WebGL experiment in the Solar System

   2016

9. 9
   Secrets of Rætikon▲85

   Solve mysteries in a beautiful and atmospheric open world.

   2015

10. 10FE
    Freeciv-Earth play anywhere on earth▲63

    2016 · play.freeciv.org

11. 11EG
    Earth Game – An offline CLI for turning life goals into quests▲55

    Jul 2026 · github.com

12. 12
    Perspecto▲72

    What is your perspective?

    2018

13. 13
    Jinks!▲76

    Stay alive as long as you can!

    2020

14. 14
    Gravity Well: Black Hole▲2

    Orbit a Black Hole. One touch. Pure Survival.

    May 2026

15. 15
    Cosmic Nomad▲3

    A Space 3D journey through the echoes of space exploration.

    Jun 2026 · apps.apple.com

16. 16
    ClearSkys▲4

    Should I stargaze tonight? Go/no go, any location

    Jun 2026 · clearskys.app

17. 17
    Meteor shower, planet alignment, eclipse kit▲11

    I made this little walkthrough for finding the visible planets tonight and a meteor shower shooting start counter. Plus a little model of the solar system to try to wrap my head around what's going on. It's all based on your location if you provide it. lifesprites.com/solar.html doesn't require account creation. The rest does. It's free, but you need an account.

    25d ago · lifesprites.com

18. 18
    Lithosphere- How Earth Works▲6

    Interactive 3D planet engine for earth science.

    Jul 2026 · play.google.com

19. 19OJ
    Orbits.js – WebGL simulation of the solar system using Three.js▲8

    2014 · github.com

20. 20
    Planet Rush: Cosmic Drift▲1

    Orbit. Launch. Survive.

    Apr 2026

21. 21
    Merge Planets: Space Puzzle▲3

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

    Jul 2026 · mergeplanets.promptlab.me

22. 22
    NoctoSky▲3

    A real-time planetarium for the whole sky

    25d ago · noctosky.app

23. 23
    LiveGlobe 3D▲3

    3D Earth with live events and the real night sky

    May 2026 · play.google.com

24. 24AS
    A strategy game about the AI race where you can't verify alignment▲6

    I made a strategy game where you play the US or China through the AI race, 2026 to 2030, sixteen quarterly turns in the browser. One run takes about half an hour. At the start, the game seals two dice you never get to see. Inside: how hard alignment really is, and how fast takeoff compounds. You get eval reports, but only as ranges, and they flatter you most exactly when your systems are least aligned. At the end you get a debrief which shows what your evals said each quarter and also what was actually true. I lost every run I played myself so far. Every number in the game is source-backed…

    Jul 2026 · criticalwindow.org

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