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
i love space
peak game
ITS SO GOOD LIKE I CAN DO ANYTHING
Crashed pluto into earth #plutohateclub
Как только я не уничтожал землю: лазер , метеориты , чёрная дыра. Но в игре есть ещё много чего интерестного: планеты , системы , галактики. 10 взорваных галактик из 10
We are One breath One word
peak
its good
its pretty good, but if you want this, you gotta have a decent computer
I love blowing up SPECIFICALLY Earth. Fun little power fantasy
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.
Languages: English, French, Italian, German, Spanish - Spain, Czech, Danish, Dutch, Finnish, Hungarian, Japanese, Korean +16 more
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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