Universe Sandbox mods
Universe Sandbox simulations mods
Everything filed under simulations by its own author, ordered by how much it is used.
2,225 simulations mods, most downloaded first · newest update 28 Oct 2026
2.2k simulations mods
- Runaway Magnetar!by LilRaspy130 downloadsupdated 6 y ago
- np systemby 76561199174274175np system is a solar system about 9 light years away 1. np 1 a star thats 1.34 times the radius of earth and 0.582 times the mass of the sun. 2. np 9 is a planet 0.00407 aus away from the star its the closest planet to the star its avg temperature is 539c its has no moons its losing mass by the m...129 downloadsupdated 20 mo ago
- How large would an asteroid have to beby Extincti0n 2: Electric BoogalooFor an asteroid to destroy all life on Earth, scientists estimate the total radius would have to be be 96 kilometers (60 miles). Nothing would survive from such an impact, extinguishing this magical thing we call "life". Thankfully, at this current moment, no asteroids this large are within the s...129 downloadsupdated 8 y ago
- Arigiant Septuple Star System.by jeevacationThe Arigiant Septuple Star System is a custom system with the alot of stars rounding in at 7 stars. So in this simulation you can see all the stars and goldilocks zones and the orbits for the stars and planets, some on the orbits are really eccentric and others are perfect no system can be perfec...129 downloadsupdated 8 y ago
- Cool Alien Planetby 76561198940168094Its a Cool Alien Planet!129 downloadsupdated 7 y ago
- Star Wars Basesby Harambe 41Including Custom Ones...129 downloadsupdated 5 y ago
- Very big multi star systemby jhroot.lee@This star system is the biggest I have ever constructed. Star system contains type 2.2 civilization, many, many, many planets and interesting objects. This is my attempt to make the most interesting star system I can construct, so please enjoy! :D B-class main sequence star It was once O-class a...129 downloadsupdated 6 y ago
- BFDI Systemby 76561198984485690THIS iS all the caricer OF BFDI (exesept SPONGY129 downloadsupdated 6 y ago
- The Prakith System (Star Wars Cannon)by Bravecylinder(NOTE) This simulation Is for demonstrational purposes only. It Is not mean't to be played. The Prakith System was a star System located In the Deep Core of the galaxy. The main planet of the System "Prakith", that because Its terrain Is unstable, invasion forces would have trouble concouring It....129 downloadsupdated 7 y ago
- THE UNIVERSE SIZE COMPARISON 2020!FULL RELESEby ByllIT´S OUT!And alots of AMAZING OBJECTS This is made by(Alex´s Universe age 11)(Universe-YT) Use Radius chart in the chart symbol then your good to go explore!129 downloadsupdated 7 y ago
- Universe Size Comparisonby 76561199022838658@My Own universe size comparison that took a crap ton of time to do it but there it is NOTE: The Pistol star, MU Cephei and VV Cephei are actual stars that aren't in the game so i re-created these guys. Their Size is probably not 100% accurate129 downloadsupdated 6 y ago
- Orion Nebulaby Harambe 41Orion Nebula In Universe Sandbox129 downloadsupdated 4 y ago
- Interstellar Gargantua Systemby AnaisStardustMy rendition and imagining of the Gargantua Black Hole system seen in the movie Interstellar. Gargantua is a supermassive black hole with 100 million solar masses that, in the movie, is orbitted by 5 objects: Miller's Planet, Mann's Planet, Edmond's Planet, the star Pentagruel and an unnamed neut...129 downloadsupdated 18 mo ago
- It's being RAIDEDby GravitywavemanThe COMEST are Here! AMERICA is HERE! And more! PS PSS128 downloadsupdated 8 y ago
- The sun supernovaby 76561199147251591The supernova created by 2 suns crashing into each other.128 downloadsupdated 6 y ago
- GOLK-95a (Largest GOLK Known)by 76561198866428675GOLK-95 Known GOLK-95a Known Gilese 14000 66 LY From Mercury And Sun Discorveing GOLK-95ab A Red Rogue Planet You See On The Image Redigo Days:In GOLK 95ab 1 Day Means 532Days In GOLK-95ab128 downloadsupdated 8 y ago
- Habitable Moon in Negative Luminosity Systemby Chippy128 downloadsupdated 4 y ago
- The Kerbol System (Kerbal Space Program)by Bravecylinder(NOTE) This simulation Is for demonstrational purposes only. It Is not mean't to be played. I've been playing alot of KSP lately, and thought It would be a great simulation in US2, so here It Is. My depiction of the Kerbol System. The Kerbol System Is a fictional solar system In the game "Kerbal...128 downloadsupdated 6 y ago
- Eternal Night Modby 76561198435703098(Side note: Yes, the sun is there but the clouds block the sun. Also the temputures are not set up yet.)) Story: starts at 8/7/2022 It starts when Mercury hits the sun. After that the solar system balance declined. After when that happen, then the whole system saw some minor changes... Pluto's an...128 downloadsupdated 5 y ago
- The Collision Systemby 76561199055652942The collision system is the main system of the zechian universe, it has a total of 37 planets. All of these planets are hell worlds. The system has one habitable object with life, a moon named cremated. The basic lore of this system and the reason it’s called collision is because collision (the s...127 downloadsupdated 18 mo ago
- Chat Names a lot of moonsby Chippy127 downloadsupdated 4 y ago
- Iron Lungby 76561199217698222The moon from the "Iron Lung" game of the same name127 downloadsupdated 4 y ago
- synch v1.1 (no-ring version)by 76561198800623084the same as synch project but without rings (now it can run faster)127 downloadsupdated 5 y ago
- Hyper (small system)by 76561198866428675if this sim hit 5 stars (800 views) i will add Hyper E,Hyper D And Hyper I!127 downloadsupdated 7 y ago
- Mustafar Star Warsby Darth KeyvanPriate system in Star Wars. also known as Mustafar. Interesting objects: Jestefad - first planet, medium gas giant Mustafar - second planet, volcanic, where obi wan defeated anakin at the end of Star Wars III Revenge of the Sith Nur - Moon of Mustafar, last location in Star Wars Jedi Fallen Order...127 downloadsupdated 4 y ago
- The Godly Star Of Infinate Supremacyby 76561199131656962Biggest Star Possible in the Game!127 downloadsupdated 5 y ago
- Nemesis sistem whit the Solar sistemby 76561198375376190investigate this pls127 downloadsupdated 8 y ago
- Battle Of Yavin (Star Wars Cannon) (Stage One [The Approche]by Bravecylinder(NOTE) This simulation Is for demontrational purposes only. It Is not meant to be played. I used all of this information via Wookipedia. Great help. ~~The Battle Of Yavin~~ STAGE ONE: THE APPROCHE Imperial activity has discovered the hidden Rebel base on the Fourth Moon of Yavin. The Battle Stati...127 downloadsupdated 7 y ago
- Lazuli System - Quaternary System w/ a Binary Systemby 「ThundeiiBot」Something I played with awhile ago. I'm not too certain how stable it is, and it's unfinished but so far it hasn't had any collisions.127 downloadsupdated 8 y ago
- Solar System - Rustby ✧ Hazel ✧Hii ! It's a suggestion from user capy on Earthland. It was fun to do, so if you have similar requests I'll take 'em. :D I didn't find a lot of information about the planet except that it may or may not be the Earth set 10 billion years in the future. But if it's indeed 10 billion years in the fu...127 downloadsupdated 4 y ago
- Terraformed Milky Wayby ajnunez89A TERRAFORMED GALAXY!127 downloadsupdated 15 mo ago
- The solar system but Thea existsby 76561199081664693Here are some things that is also there: 1. two Plutos. 2. Thea has moons. 3. Venus acts wierd. 4. one object (Apinust) looks cool. 5. weird glitch with Earth coastline. 6. Inbetweeners of planets and asteroids And 7. Find the hidden objects (there are a lot of them) P.S. credit my creations and...126 downloadsupdated 5 y ago
- AR Scorpiiby christaylorstargazerLocated in the constellation of Scorpius,AR Scorpii or AR Sco is a binary pulsar that consits of a white dwarf and a red dwarf.it is the first "white dwarf -pulsar"to be discovered .the 3.56 period in this star systems light curve casued it to be misclassified as a delta scutii type variable,but...126 downloadsupdated 8 y ago
- black holeby 76561199152018760its littery called "black hole"126 downloadsupdated 4 y ago
- Outer Wilds Solar Systemby CaεliosMy Attempt At Re-creating the Solar System From Outer Wilds! Of Course it will not be 100% accurate And some of the more unrealistic elements such as the Sand Pillar on the Hourglass twins And Dark Bramble's Brambles have not Been included But I have done The best i can. Enjoy! Edited by metroFIR...126 downloadsupdated 4 y ago
- quasarby Mandalorianquasar or blazar126 downloadsupdated 5 y ago
- TON 618 - Possibly most massive Black Holeby cynic ✅ bungerTON 618 is a black hole at the middle of a quasar, with an estimated mass of 66 billion solar masses and a Schwarzschild Radius of 1303 AU126 downloadsupdated 8 y ago
- weird starsby 76561199123317001has the rainbow stars and a black and white star and a frozen star and also a negitive Lumosity star too aslong as some other ones125 downloadsupdated 3 y ago
- Clorinu, Life around a blackholeby 76561198351294302@Welcome to the world of clorinu, a world orbiting around a blackhole, it has a very rough, and interesting history.\ ----------------------------------------------------------- Clorinu actually orbits a gas giant orbiting a blackhole, the origins are mostly unkown, but it is believed the gas gia...125 downloadsupdated 6 y ago
- COUNTRY SIZE COMPARISONby Byll125 downloadsupdated 6 y ago
- Super Saturn (1SWASP J1407 System)by ultronubisOrbital characteristics and masses are as described in Wikipedia (125 downloadsupdated 7 y ago
- The Mon Cala System (Star Wars Legends)by Bravecylinder(NOTE) This simulation Is for demonstrational purposes only. It Is not meant to be played. I used the Legends version of the System because It had much more information. The Mon Cala System was an 8 planet star System located In the Mon Calamari Sector of the Outer Rim of the galaxy. It consister...125 downloadsupdated 7 y ago
- Kethin-5 systemby 76561199259127235Pls FAV IT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!124 downloadsupdated 11 mo ago
- Earth covered in tomato's?by 76561199162091590This is a sequel to the About a year before. Humanity was living the good life with the carrot infested Earth and all. But one person realised that they didn't like carrots and when you eat carrots for EVERY MEAL! They start to seam less appealing. and so one bye one every human on Earth wished t...124 downloadsupdated 2 y ago
- Colorful gas giantsby GigamanGas giants / Stars124 downloadsupdated 7 y ago
- Zirix Systemby 76561198324365375The Zirix system is a trinary system made of the close binary Zirix A and the white dwarf Zirix B. A is itself a binary consisting of a white star similar to Altair (Aa) and a much smaller red dwarf (Ab). It is 8.6 light years from the Algo system and is the brightest star as seen from the Algo s...124 downloadsupdated 3 y ago
- A blackhole absorbing matterby kwindl124 downloadsupdated 7 y ago
- Terraformed Venusby 76561198800023849I terraformed Venus by giving it almost identical statistics to Earth124 downloadsupdated 7 y ago
2.2k simulations mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.

