Universe Sandbox
Universe Sandbox mods
A mod changes the game itself, so it is tied to a game version and to whatever loads it. Filter by both and you get the list that will actually load, not the list that mentions your version somewhere in a description.
- Quasi Star Pack (18 Stars)by 76561199003933743A catalog of quasi stars you can save. The largest of which is 100 million times more massive than the sun!166 downloadsupdated 3 y ago
- TON 618 size comparisonby FluckeActive black hole = Quasar (black hole + accretion disk) Inactive black hole = just a black hole Our Galaxy (Milky Way) contains an INACTIVE black hole named Sagittarius A*. TON 618 is a quasar in Canes Venatici constellation and contains an ACTIVE black hole. So far it is not proven if TON 618 h...166 downloadsupdated 7 y ago
- Red dwarf system formingThis is a simulation of a Red dwarf system still in formation166 downloadsupdated 2 mo ago
- Earth Around Giant Stars [THIRD TRY]by DuscaraThis is my third attempt to get a stable system where UY Scuti orbits R136a1 along with Earth, the latter being orbited by its moon. I decided not to add Venus, Mars, Jupiter with Saturn's rings, or the Galilean moons this time for the sake of framerate.165 downloadsupdated 5 y ago
- die lokale gruppeby 76561198992093622die lokale gruppe bestett aus nachbarn der milchstrasse die lokale gruppe ist im virgo haufen der virgo haufen hat ungefähr 48 Millionen galaxien diese simulation zeigt nur die lokale gruppe es ist noch nicht alles vertig ich probiere jede woche mehr von der lokalen gruppe zubauen vieleicht baue...165 downloadsupdated 7 y ago
- PLanet REDby Blazin' FastSo this is a creepy red planet with water, again atmosphere is red165 downloadsupdated 7 y ago
- figure-8 three-bodyby 梦又过山岗figure-8 solution of three-body problem stable initial condition: m1=m2=m3=1.00 sun pos1=(5e10 m,0,0) pos2=(-5e10 m,0,0) pos3=(0,0,0) v1=v2=(p1,p2,0) v3=(-2*p1,-2*p2,0) p1=17884.34 m/s p2=27447.95 m/s165 downloadsupdated 6 y ago
- Theiaby 76561199148874005this is what the planet used to look like when it was about to collide with earth165 downloadsupdated 5 y ago
- The Pumpkin Manby ElowinyI was incredibly bored so I made a statue of a Pumpkin Man holding the Moon and standing on Earth. Enjoy!165 downloadsupdated 8 y ago
- a morning filled with 400 billion sunsby TRONas Carl Sagan famously said "a still more glorious dawn awaits, not a sunrise... but a galaxy rise... a morning filled with 400 billion suns... the rising of the milky way" i put that into visuals165 downloadsupdated 8 y ago
- LASERSby wadsTHERE IS A LASER164 downloadsupdated 7 y ago
- earth thea colisionby 76561198862380676earth colides with thea. thea was on a tilted orbit.164 downloadsupdated 6 y ago
- First Flames =the early solar system=by 76561199206977606First Flames in an simulation to the early solar System in a realistic and speculative way. Discalaimer: Due to limitations we cant place everything perfectly.164 downloadsupdated 3 y ago
- Kerbal space program systemby 76561198879201237Recreation of the Kerbal space progam's solar system.164 downloadsupdated 4 y ago
- pulstar solar systemby 76561199239225388great solar system164 downloadsupdated 4 y ago
- Terraformed moonby CrossPandusTerraformed moon thanks to meteorites164 downloadsupdated 6 y ago
- After Theiaby gestonwthe moon is just begining to form a the Earth has hot rings164 downloadsupdated 3 y ago
- Kepler Packby 765611989738203076 Planet = Kepler-122 f = Kepler-37 b = Kepler-20 e = Kepler-22 b = Kepler-452 b = Kepler-70 b Coming soon.164 downloadsupdated 4 y ago
- Quasi-Star (Black-Hole Star)by 76561198871612074Quasi Stars A quasi-star (also called black hole star) is a hypothetical type of extremely massive and luminous star that may have existed early in the history of the Universe. Unlike modern stars, which are powered by nuclear fusion in their cores, a quasi-star's energy would come from material...164 downloadsupdated 4 y ago
- Last Minute.by 76561199762340411The last minute of the Solar System's life, the Sun goes supernova.163 downloadsupdated 18 mo ago
- to many segue-2 galaxies orbiting m32by 76561199354133224163 downloadsupdated 3 y ago
- Life around a dead star(IMPOSSIBLE)by Zephyrive decided to make something impossible because i can. this star is solid, and i gave it a luminosity that *should* keep the planet warm. this also gives the planet a bright side which makes no sense but oh well. if you speed up time the planets temperature will go all over the place because the...163 downloadsupdated 7 y ago
- Upsilon Andromedae Systemby 76561198881265063Just because a planet isn't habitable, dosn't mean it isn't worth talking about. - Kyplanet The Upsilon Andromedae System is a very interesting solar system composing of three Super-Jupiters, and two stars. Interactions between these planets have caused all their orbits to go wonky, creating a fr...163 downloadsupdated 23 mo ago
- Rogue Planet Simulationby 76561198880449275@Simulation of a large rogue planet entering the Solar System Created by me (Madplanetguy)163 downloadsupdated 6 y ago
- Solar System - 2025by 76561199078671322Mars is now 100% earth simularity but 8% behind on life likelyhood163 downloadsupdated 18 mo ago
- 4 Future Supercontinents That Will Occurby kyserkingsberryPangea Proxima: There will be EXCESSIVE GLOBAL HEATING also there will be no more ice! Novopangea:Plants will survive but photosynthisis can get low. Amasia: Plants start to die out because photosynthisis becomes very,very low. Aurica:All plant life is now dead but there is cells surving also cya...163 downloadsupdated 3 y ago
- Realistic Saturnby 76561198981729280WARNING!!! Very laggy!163 downloadsupdated 4 y ago
- Muerta star systumby 76561199435990311+- no discription yet -+162 downloadsupdated 2 y ago
- habitable solar systemby 76561199152806236This solar systen has habitable planets.162 downloadsupdated 5 y ago
- Sirius Systemby glimmfameThis system consists of Sirius A, an A-class star and Sirius B, a white dwarf.162 downloadsupdated 5 y ago
- Our Solar System - 4.5 Billion Years Laterby 76561199387403065Note: This simulation can be played, though not very fast. Also, do not delete particles as they are imperitive for some objects in the simulation. Welcome to our solar system, 4.5 billion years after the present. The sun is now a red giant, and life has been reduced to existing on the far outer...162 downloadsupdated 22 mo ago
- Copper System [After Core Collapse]by 76561199170264025This is after the planet's core exploded Current planet amount in the system is 9. Copper-9 orbits Copper-8. Copper-9 has a moon named "Copper-9B". Feel free to explore the system so far162 downloadsupdated 3 y ago
- The Yavin System (Star Wars Legends) (Minor Update)by Bravecylinder(NOTE) This simulation Is for demonstrational purposes only. It Is not mean't to be played. I used the Star Wars Legends version of the System because It has much more information. The Yavin System was a star System consisting of 3 planets and one asteroid. The main planet "Yavin Prime" Is a red...162 downloadsupdated 7 y ago
- 40 Eridani System - Project Hail Maryby 76561199092215002Includes: Erid Threeworld All three stars in the 40 Eridani system Spoilers below! Takes place after the Astrophage is stopped in the Eridani system.162 downloadsupdated 5 mo ago
- Realistic Gas Giant Pack V1by ByllMade By Omega Comparisons162 downloadsupdated 2 y ago
- Random System #2by 76561198856063382This is what the title says it is. A random system I created. Do whatever you want with it.161 downloadsupdated 4 y ago
- Alien Life Factoryby 76561198328573847When 9 sun-like stars orbit a supermassive black hole, theres a possibility to hold 150+ planets capable of supporting life. -Inspired by melodysheep161 downloadsupdated 3 y ago
- Terraformed Basketballby 76561198880449275@Made by me (Madplanetguy)161 downloadsupdated 6 y ago
- Lokin System (future)by 76561198828469498161 downloadsupdated 8 y ago
- Terraformed Dwarf Planets (+Dwarf Planet Candidates)by ajnunez89Welcome to part one of my terraforming series, I will making a lotmore in the future and you can tell us in the comments what you would like to see. Subscribe! (EDIT: Thank you so much for 2,000 subs on Ultra Realistic Earth. It means a lot to me, because I have always dreamed of becoming popular...161 downloadsupdated 14 mo ago
- young systemby Metalgod33This is the old solar system where Earth doesn't have life. All of the planets are here and +2 more,Theia and Planet X/the ninth planet. The sun isn't hot and Venus is cooler160 downloadsupdated 18 mo ago
- Planet Pack Ⅲby SphinxIt's back, and better than it was intended to be! Features: Planets arranged differently Much more planets than the previous packs Planet masses reach up to 40 jupiters160 downloadsupdated 7 y ago
- Gas Ballby insanetnt5036Oh look, a ball with gas on it. Ewww!!!!! Special thanks to myself for playing with files.160 downloadsupdated 8 y ago
- Terraformed Wolf 1061 cby 76561199403122192The temp changes throughout its somewhat elliptical orbit but nothing drastic.160 downloadsupdated 3 y ago
- The Fondor System (Star Wars Cannon)by Bravecylinder(NOTE) This simulation Is for demonstrational purposes only. It Is not mean't to run. I used the Cannon timeline of the System because there was no recorded information of a Legends timeline existing. The Fondor System was a Star System located In the FreeWorlds sector of The Galaxy. It housed ma...160 downloadsupdated 7 y ago
- NGC 4889 with gravity pumped up to 1E+100 (googol= 1 with 100 zeros)by 76561199192520942The Largest Black Hole Know To Us Mass; 21000000000 Solar Masses (21^10x9 Solar Masses) Schwarschild Radius; 415 AU (415 Astronomical Units) Density; 0.0418 kg/m^3160 downloadsupdated 5 y ago
- Tatoo Systemby Swan Lake"The Tatoo system, also known as the Tatooine system, was a binary solar system located in the Arkanis sector of the Outer Rim Territories. The first planet in that system was Tatooine, a harsh desert world." -Wookieepedia This is a recreation of the Tatoo System from Star Wars, only including th...160 downloadsupdated 8 y ago
- SCP-2399, A Malfunctioning Destroyerby BravecylinderThis is my rendition of SCP-2399, also known as "A Malfunctioning Destroyer". Enjoy! Description: SCP-2399 is a massive, complex mechanical structure currently located in Jupiter's lower atmosphere. Since its visual discovery in 1963, SCP-2399 has been observed to use highly advanced, anti-matter...160 downloadsupdated 5 y ago

