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Universe Sandbox

Universe Sandbox

Giant Army · released Aug 23, 2015

CasualIndieSimulationEarly AccessPC

Create & destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe.

EA
Early Access · not scored yet

A work in progress doesn't get a VGC Score. When 1.0 ships, it's scored completely fresh: we judge the game that ships, not the road there. Until then, here's how the Early Access run is going:

Stable
96%
Recommend
96%
Now
72%
Player sentiment
11.0y
In EA
2
Updates 90d

Screenshots & trailers

What players say

Why the number is what it is: aspect mentions counted across 302 sampled Steam reviews (292 positive / 10 negative), recent and most-helpful. Plain keyword counting, fully reproducible; nothing here is written by a machine.

What positive reviews talk about

  • Bugs & crashes4% mention it
  • Visuals & art4% mention it

What negative reviews complain about

Negative reviews don't converge on specific aspects.

Satisfaction by hours played

Same score, different games: see how sentiment holds up the longer people play.

Under 5h

94%

67 reviews

5-15h

96%

94 reviews

15-40h

98%

65 reviews

40-100h

100%

34 reviews

100h+

98%

42 reviews

Review sentiment over time

Weekly positive-review rate (green) and review volume (bars). Dashed lines mark significant patches; the amber line is the start of the current scoring window. Hover the dots to see what drove a dip or a jump.

Press & Creators reviews (3)

Individual verdicts from outlets we track: scored reviews first, most trusted outlets first among them. The small badge is each outlet's trust score: how well its scoring history aligns with players.

  • 75
    trust 71May 16, 2011

    After a helpful (though light) tutorial, Universe Sandbox offers little guidance for aspiring unmoved movers. A more robust set of tutorials, a manual, or even the use of Steam Achievements to encourage varied behavior would go a long way toward helping players make their own music of the spheres.

    read full review ↗
  • 87
    trust 64Jul 14, 2011

    This is where universe sandbox succeeds brilliantly: players experience godly power to create or destroy, while almost unavoidably learning something about the physical properties or our universe. [Sept 2011, p.69]

  • 80
    trust 60May 18, 2011

    Universe Sandbox isn't a game per se; there are no bosses, aims or levels, merely an accurate model of astronomical bodies for you to fiddle with. It's really more of a toy, the virtual equivalent of a configurable orrery, except hugely more complex than any mechanical system.

    read full review ↗

Patch history

  1. Pale Blue DOTS | Update 36
    Mar 30, 2026significant · resets scoring window
  2. Pale Blue DOTS Preview Now Available | Physics Simulation Overhaul
    Dec 18, 2025significant · resets scoring window
  3. Space in a New Light | Update 35
    Mar 3, 2025significant · resets scoring window
  4. Space in a New Light Preview Now Available | Major Graphics Update
    Nov 26, 2024significant · resets scoring window
  5. Eclipsed Improvements | Update 34.1
    Mar 5, 2024significant · resets scoring window
  6. Terraforming | Update 34
    Dec 15, 2023significant · resets scoring window
  7. Gravity Simulation Upgrade | Update 33
    Aug 16, 2023significant · resets scoring window
  8. Space is Big | Update 31.4
    Oct 27, 2022significant · resets scoring window
  9. Universe Sandbox 2021 Retrospective
    Feb 17, 2022significant · resets scoring window
  10. Clouds in Motion | Update 27.1
    Jun 21, 2021significant · resets scoring window
  11. Universe Sandbox Roadmap: 2021.5 & Beyond
    Jun 16, 2021significant · resets scoring window
  12. Fast & Flurrious | Update 27
    May 3, 2021significant · resets scoring window
  13. Splish, Splash, Filling a Bath | Update 26.3
    Feb 25, 2021significant · resets scoring window

…and 25 earlier patch announcements.