Universe Sandbox
Patch notes · News · Live player count
About
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.
Media Gallery(19)
Patch Notes & Announcements(197)
MINORBack to the Moon! | Update 36.1
Artemis II MissionThe recent Artemis II mission swept around the far side of the Moon, taking humanity farther than they’ve ever been from Earth. Experience it yourself in our new simulation, Artemis
MINORPale Blue DOTS | Update 36
Blast apart rings with lasers, deform moons as they become tidally locked, vaporize meteors, and more! We’ve reconstructed the physics simulation architecture of Universe Sandbox to provide a new base
MINORUniverse Sandbox Roadmap: 2026 & Beyond
Our first planned major release of 2026 is our physics architecture overhaul that will simulate meteors (atmospheric drag) and improve lasers. We’re also continuing development on life simulation, bri
MINORPale Blue DOTS Preview Now Available | Physics Simulation Overhaul
For the last four years, we’ve been working on a major overhaul of Universe Sandbox to utilize the Data-Oriented Technology Stack (DOTS) from Unity, the game engine we use to build Universe Sandbox, t
MINORNominate Universe Sandbox for the “Labor of Love” Award
Every year, Steam gives the “Labor of Love” award to games that have been out for a while and continue to receive new content and support year after year. If you feel we are worthy, please nominate Un
MINORPlanet Nine’s New Nemesis | Update 35.4
Learn about the recently discovered sednoid 2023 KQ14 and why it challenges the Planet Nine hypothesis. Enjoy a handful of bug fixes and quality-of-life improvements like the ability to quickly fly to
MAJOR10-Year Steam Launch Anniversary
The 10-year anniversary of Universe Sandbox’s Early Access launch on Steam is this Sunday, August 24, 2025! To celebrate this milestone, Universe Sandbox will be on sale now until August 28. Over the
MINORAnother Interstellar Visitor | Update 35.3
Watch the third-ever discovered visitor from outside our Solar System, 3I/ATLAS, fly past the Sun and see how it compares it to other known interstellar interlopers. We’ve also improved the view that
MINORBlinded by the Light | Update 35.2
Watch the boiling surface of a star, then set off a supernova and light up your worlds (before your planets are vaporized anyways). Massive stars now leave behind a neutron star or black hole when the
MINORDescribing the Universe | Update 35.1
https://i.imgur.com/pPaVBgp.gif {STEAM_CLAN_IMAGE}/4425618/fe75027b73ed419d5df35a69251b444cb2504d68.png Describe Your Worlds Add rich details to any object and the simulation itself with the new descr
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