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.
Modeled estimate, not a reported figure. How we estimate →
Media
About
Universe Sandbox is a realistic physics-based space simulator that allows you to create, destroy, and interact on an unimaginable scale.
It merges real-time gravity, climate, collision, and material interactions to reveal the beauty of our universe and the fragility of our planet.
N-body simulation at almost any speed using Newtonian mechanics. Real science, real physics, no supercomputer required.
Epic, mind blowing collisions of massive planetary bodies that leave behind molten craters.
Start with a star, then add a planet. Spruce it up with moons, rings, comets, or even a black hole.
Watch sea ice grow and recede with the seasons because of a planet’s tilt - change the tilt and change the seasons. Or move planets close to a star and see the oceans boil away as the surface heats up.
Watch a supernova unfold by colliding two stars, cranking up their mass, or making them explode at your whim.
Hitch a ride with spacecraft including Juno and New Horizons, or view a total solar eclipse.
Build and terraform planets with 12 materials, including water, oxygen, & carbon dioxide
Stellar flares & volatile trails
Procedurally generated planets, stars, & galaxies
Pulsars
Light-warping black holes
Epic space lasers
Shape oceans & mountains on planet surfaces
Spin planets apart with centrifugal force
Original soundtrack by Macoubre
Support for 20+ languages
Share & explore simulations on Steam Workshop
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Updates
Build ids and update times come straight from Steam's PICS — the same source SteamDB reads. Patch history grows as we record new builds.
Engagement
Hours played at review time, across 620 reviews with recorded playtime.
Reviews
Themes across 618 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
positive critical· bar length = how often the theme comes up
Reviews
If you are creative and like astronomy, this is the game for you.
Best space/god sim there is.
This game is awesome if you like worldbuilding (literally). Also, it's good if you like [strike]destruction[/strike] fun. Either one.
can legally kill humans
for the people who are interested in space and the universe, etc.
My son is autictic. HE loves space. This game is a dream come true for him, he can fly though the universe and visit all its wonders. Thank you dev for all your hard work.
i have done nothing but stare at the solar system to piano for 4 hours. HARD recommend. i think $40 CAD is still steep, but $30 on the annual sale is perfect. if your PC can handle it, get some realistic planet/satellite mods and just... observe. or blow up planets and dont get trapped in the cosmic awe for hours on end like me. thats probably better bang for your buck, honestly
So my review is that this game lets you play god when it comes to planets, stars, and so much more!
Amazing Game! The game is worth the $30 to play. It's like you are the god of the solar system. I recommend to people who love being in control!
Best Space/sandbox game next to space flight sim, would recommend
Related
Related
Trends
Modeled estimate over time, reconstructed from Steam's monthly review histogram.
Engagement
DAU/MAU are modeled from peak concurrent players (≈×8 and ×28) — Steam publishes no active-user counts, so treat these as rough estimates, not reported figures.
Audience
Audience
Games most often reviewed by the same players — an audience-affinity signal from our review sample, not full ownership data.
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Languages: English, French, Italian, German, Spanish - Spain, Czech, Danish, Dutch, Finnish, Hungarian, Japanese, Korean +16 more
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