Universe Sandbox
Universe Sandbox mods
A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
2,316 mods, most downloaded first · newest update 28 Oct 2026
- 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...166 downloadsupdated 4 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
- 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
- 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.165 downloadsupdated 3 y ago
- pulstar solar systemby 76561199239225388great solar system165 downloadsupdated 4 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
- Realistic Uranusby 76561198420320144The color is more realistic, and it just have one band. CREDITS UF YOU USE IT165 downloadsupdated 4 y ago
- Realistic Gas Giant Pack V1by ByllMade By Omega Comparisons165 downloadsupdated 2 y ago
- Viltrum System (Idk how to change the thumbnail to a better pic)by 76561199203980771The Viltrum System is a high-energy, high-gravity planetary system located in the Whale Galaxy (NGC 4631), approximately 560.8 billion lightyears from Earth. It serves as the sovereign heart of the Viltrumite Empire. The Central Star: Viltrum Prime The system is anchored by a massive O-type blue...165 downloadsupdated 7 mo ago
- LASERSby wadsTHERE IS A LASER164 downloadsupdated 7 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...164 downloadsupdated 7 y 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 jupiters164 downloadsupdated 7 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...164 downloadsupdated 23 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 far164 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...164 downloadsupdated 7 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...164 downloadsupdated 5 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
- Hail mary planetsSomeone pls tell me if the blue gas giant has a name or not.164 downloadsupdated 7 mo ago
- Kerbol System v1.0The stock solar system from the game Kerbal Space Program. As the previous iterations have been in much older versions of the game, I decided to make a new one with more modern features. If this gets on to the featured page, I will make one with the Outer Planets Mod system.164 downloadsupdated 5 y ago
- Last Minute.by 76561199762340411The last minute of the Solar System's life, the Sun goes supernova.163 downloadsupdated 20 mo ago
- to many segue-2 galaxies orbiting m32by 76561199354133224163 downloadsupdated 3 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...163 downloadsupdated 15 mo ago
- Star Wars Galaxy Recreated 2by Harambe 41New Planets In the galaxy!163 downloadsupdated 3 y ago
- Habitable Moonsby ajnunez89Welcome to my simulation! Rememeber when I made my habitable solar system? Well, I forgot the moons, so I made this simulation in case any of you wanted them. I hope you enjoy! Also, please give credit if you are going to use any of these. Subscribe!163 downloadsupdated 15 mo ago
- 4546 system (Subnautica)by 76561198891407125A realistic recreation of the solar system from Subnautica. The planet the game takes place on is 4546B. If you have anymore game or movie solar system ideas let me know.163 downloadsupdated 4 y ago
- Black black hole holeby 76561199013366126163 downloadsupdated 6 y ago
- Helion systemthe helion system consist up to 11-12 planets , most of the objects here were named in greek , some in roman, had to rush it at the end because of a math exam but i put allot of effort into this, i would recommend starting from closest planet to farthest and this system has two stars information...163 downloadsupdated 1 mo ago
- Muerta star systumby 76561199435990311+- no discription yet -+162 downloadsupdated 2 y ago
- habitable solar systemby 76561199152806236This solar systen has habitable planets.162 downloadsupdated 6 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
- Gas Ballby insanetnt5036Oh look, a ball with gas on it. Ewww!!!!! Special thanks to myself for playing with files.162 downloadsupdated 8 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 melodysheep162 downloadsupdated 3 y ago
- Dark Matterby 76561198430921561go to the label that says Dark Matter Nova Remnant, then go to the black star in the middle, left click twice and go to options and save it and go F*** around with it162 downloadsupdated 8 y ago
- Lokin System (future)by 76561198828469498162 downloadsupdated 8 y ago
- The Solar System 4.5 Billion Years Agoby pony68gtojrThey're were ten plantets in the Solar System, including Theia and The Fifth Giant. These both planets got wiped out due to Theia on the Earth impact and The Fifth Giant orbiting out of control.162 downloadsupdated 6 y ago
- Gas Giantsby 76561199106628162162 downloadsupdated 4 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
- Gorgon & Gorgon MS1by 76561198378022731A custom planet I made. Gorgon, home of the Gorgonians, and its moon, Gorgon MS1.161 downloadsupdated 8 y ago
- Terraformed Basketballby 76561198880449275@Made by me (Madplanetguy)161 downloadsupdated 6 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...161 downloadsupdated 7 y ago
- KSP system according to ksp 2 first trailer and ksp 1.by 76561199476892445I bassically used the normal solar system but changed up some thing, i hope you like it.(UPDATED)161 downloadsupdated 4 y ago
- Neptune 600+ bandsby 76561199102737273I was on the workshop when I saw someone make realistic planets of Jupiter and Saturn so i decide to make one for Neptune hope you enjoy it!161 downloadsupdated 4 y 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 20 mo ago
- Neutron Star (real facts from kerzgesagt youtube)by 76561199066623460A neutron star with normal facts from "kurzgesagt" youtube for the item 100000000000 telsa for normal neutron star but that didn't make a pulsar so i did 10000 telsa and 0.9 sec for one day and 25km as an avarage neutron star size and 3 sun mass (1000000000earth mass) crash it togethere and creat...160 downloadsupdated 6 y ago
- HD-50007433by 76561198866428675Serval Custom Objects Are Made Colored Planet:HD-50007433 a160 downloadsupdated 8 y ago
- Terraformed Wolf 1061 cby 76561199403122192The temp changes throughout its somewhat elliptical orbit but nothing drastic.160 downloadsupdated 4 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
2.3k 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.

