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
- Ton 618by 76561198374029691This is TON 618, one of the largest black holes that we know about. This save includes the backhole itsef and an acreliation disc.2.0k downloadsupdated 4 y ago
- Stellar Habitrink ( previusly PLANET SAW)by 76561199476890521NAME: Stellar Habitrink PREVIUS NAME: PLANET SAW BEFORE: STEPHSON 2-18 EARTH LIKE: 100% LIFELIKELYHOOD: CA 99.9065%2.0k downloadsupdated 26 d ago
- Caala Solar Systemby 76561198821810794A unique solar system featuring the star Caala. There are several planets and even planets that hold life, both terrestrial and aquatic.1.9k downloadsupdated 5 y ago
- Pontentially habitable Exoplanetsby Byll1.9k downloadsupdated 3 y ago
- M 33 X-7by Mandalorianone of the largest stellar black holes1.9k downloadsupdated 5 y ago
- Default Uranus REMASTERED!by 76561198880449275The default US2 Uranus Remastered! Enjoy! Dont Steal or repost this item thanks, if reused give credit! My YouTube Join My My Discord Server1.9k downloadsupdated 5 y ago
- solar system [4.5 BYA]by 76561199814466298adding more stuff1.9k downloadsupdated 9 mo ago
- Terraformed Callisto (100%)by KOMAINA fully terraformed Callisto, with vegetation, oceans, a habitable atmosphere and city lights. - - - - - - - - - - Terraformed Bodies Collection (100%): Terraformed Sun (100%):1.9k downloadsupdated 7 y ago
- 4 Billion Years Ago.by 76561198861291023Welcome back Time Explorer! Youve travelled forward intime since your last voyage, your now 4 billion years into the past. Saturn lacks rings, Neptune lacks its moon. But 2 planets disappeared with no trace to find them, except for a keen eyed person, like yourself. Uranus, suddenly crashed onto...1.9k downloadsupdated 3 y ago
- Phelaminas Systemby Tinkersaint!. Glooko's Color is From The Custom Colors1.9k downloadsupdated 8 y ago
- Subscribers Systemby Neptunian GuyA System with planets to be customized by my discords users for upcoming video! please do not alter star orbits in any way or add huge masses which will alter orbits. Thank you1.9k downloadsupdated 2 y ago
- Half Land, Half Waterby 76561198880449275This Planet is half land, half water, with a mountain range preventing water spilling into the other side. Object suggested by Maze Dude in the comments of my most recent video. My YouTube Join My Discord Server <Here, to chat with me and the rest of the community!1.9k downloadsupdated 5 y ago
- 'Comment' planets (no longer updating)by Hippopotomonstrosishey, a quick note this simulation is no longer going to be updated by me I'm sorry that it has to be discontinued but there is now a v2 of the Comment planets, I have to leave a comment saying that it is here with the link, this may be outdated but it may never be forgotten. @@Hello Welcome to "C...1.9k downloadsupdated 6 y ago
- Our Full and incomprihensible Solar System (Lag Warning)by 76561199465125557The Solar System is an incredibly large and size diverse Planetary system featuring a Star, 4 terrestrial Planets, 4 Gas Giants, 6 accepeted Dwaf Planets, 700,000 - 1,700,000 Asteroids within 6 Au, ~25,000* Centaurs (*My estimate) and ~100,000 - 250,000 Asteroids, Dwarf Planets and Comets** (**Al...1.9k downloadsupdated 4 mo ago
- TF DID I MAKEby ByllI Was Just Testing LOL1.9k downloadsupdated 3 y ago
- Solar System 4 Billion Years Agoby 76561199116206422The Solar System is a dynamic place over long stretches of time, and 4 billion years back the entire system was different in one way or another! From Mercury to the Kuiper Belt, multiple objects not in the base game have been added, and so have some theoretical objects, such as Chrysalis and Plan...1.9k downloadsupdated 4 mo ago
- 10,000 Band Hyper-Realistic Jupiterby 76561198880449275My 10k jupiter. It took 6 hours to make and uses several NASA and ESA images. This jupiter hit 10k before I did. Next up, 25k?1.9k downloadsupdated 6 y ago
- (NEW) Ashium Prime with PURPLE OCEANS, Purple Ice Caps, Purple Cities, Purple Vegetation, White clouds and Atmosphere.by BlueMarbleThis is one of my first uploads of a tinted object. I hope you enjoy it, as I really like the outcome of this object. -BlueMarble.1.9k downloadsupdated 7 y ago
- Star Size Comparisonby Random_RHINO2006comparing different star type sizes (credit for Quasi Star goes to Youngest-Scientist)1.9k downloadsupdated 6 y ago
- Observable Universeby 76561199086250977It's story t-t-t-time...1.9k downloadsupdated 18 mo ago
- weird sim, help me, i am spending way too much time on this game, and my life is doomed, no need for a discription, becasuese yesby 765611984183088951.8k downloadsupdated 5 y ago
- Sirds Systemby Duck Of WellingtonThis system contains 47 bodies 1 Star 2 gas giants 1 ice giant 5 terrestrial planets 6 dwarf planets 17 major moons 13 minor moons 2 astroids1.8k downloadsupdated 3 mo ago
- Our solar system if fifth giant never leftby ChrisTopAs the fith giant evaded the gravity of Jupiter and used it to fly inward's this shot jupiter stright toward's Saturn, the 2 almost collieded with eachother, but the gravity of fith giant has evaved such a thing. The giant sit's peacefully in the inner solar system now. Mercury was flung outward'...1.8k downloadsupdated 4 y ago
- The Butt Cheek Systemby 76561199111654732Which Will Be The Dominant Cheek?1.8k downloadsupdated 6 y ago
- Exum Centaurux Star Systemby BlueMarbleOPENING SYSTEM INFORMATION < FILE FOUND < OPENING SYSTEM RESEARCH...... SYSTEM FILE OPENED. Exum Centaurux is one confusing star system. We don't know HOW it managed to escape the mass of Sagitarrius B, but it's done it. We need YOU t-- SYSTEM FILE CLOSED. If you wanna join my Discord, here's the...1.8k downloadsupdated 7 y ago
- Roblox´s Nuke 4 Bombsby 765611990033351611.8k downloadsupdated 4 y ago
- Kerbol System Gravity Model (Kerbal Space Program)by SistrumA model of the Kerbol system, home of the Kerbals. Kerbal Space Program uses a simplified version of gravitation. Here, you can see the instability that full n-body simulation creates. This model includes accurate orbits, but the 'Sun' Kerbol is a gas giant instead of a Star. As a result, the pla...1.8k downloadsupdated 7 y ago
- Pulsar packby 765611991955106821.8k downloadsupdated 3 y ago
- Europe as country balls 2024by Goanimate60Europe shown as country balls in 2024 April fools! Each country in Europe is represented here as a country ball. Custom textures cannot be added to planets right now, so the flags were drawn by hand and do not look perfect. I must have accidentally clicked on the DO NOT PRESS BUTTON added by this...1.8k downloadsupdated 3 y ago
- Terraformed Satelliteby ajnunez89Welcome to my sim! This is a terraformed satellite with solar panels and a radio dish. If you enjoy, drop a like and subscribe!1.8k downloadsupdated 15 mo ago
- Solar System 2.0by 76561199211087370The Solar System in Full Form. Our Solar System may be WAY bigger then we think.1.8k downloadsupdated 5 y ago
- The Multiverse V1.1by 76561199369611529UPDATED The Multiverse Please do not repost or steal any of these items All made by me (Coolboylikesplanets) (DISCLAIMER If any objects posted on the steam workshop make sure to dm me in discord and give credit if you dont it will be taken down \Added Dust Clouds And Rock Particles to background1.8k downloadsupdated 4 y ago
- Stars - the smallest to largest (I think...)by 76561198850228355I'm not sure if it's correct, I did it based on size, I also did it for entertainment, If you find a mistake and want to fix it and also repost, feel free.1.8k downloadsupdated 6 y ago
- Pale Blue Dots WASP 199by My Pet Named SteveThe Pale Blue Dots1.8k downloadsupdated 2 mo ago
- Eserth Prime with BLUE SUNSETS, Cities, White Atmosphere and Blue Clouds, Vegetation, and Climate.by BlueMarbleOne of my other Sunset objects that I find interesting and cool at the same time. If this or Jedha does well, I may release a new object breed soon enough. -BlueMarble.1.8k downloadsupdated 7 y ago
- the solar system... BUT NEPTUNE HAS BEEN TERRFORMEDby 76561199432793423dont ask why jupiter is gone... at 20 likes ill terrform jupiter (jupiter is being worked on sorry for it taking so long im sick) mars and venus terraformed:1.8k downloadsupdated 3 y ago
- Tarus Binary Star Systemby 76561199229513541PLEASE READ THE FOLLOWING Update Play on update 35.3.4 If you don't know how to switch updates, Go into your steam, Go to the gear icon and click it, click on properties, a menu should open up, click on updates and betas, select the recommended update, 35.3.4 REASON This is because the modded obj...1.7k downloadsupdated 5 mo ago
- Minor Planets (250)by 76561199231322015minor planets 1-2501.7k downloadsupdated 2 y ago
- (BRAND NEW OBJECTS) Custom Modded Solar System.by BlueMarbleWe now have BRAND NEW OBJECTS! Features of this Update Include: A better, more realistic mercury, that is more soothing than the old brown type! A New Venus Atmsophere With Clouds, that make the darn thing more realistic than ever! A new Earth Atmosphere, which gives it a whole new look! A new Ma...1.7k downloadsupdated 7 y ago
- TEMPLATES GALORE(Made By Me)by Byll60+ All My 8K Banded Objects Ive Made1.7k downloadsupdated 2 y ago
- QUASARby WhatDaMathThis is a model of a quasar with two particle jets from both sides. Find out more at www.youtube.com/whatdamath1.7k downloadsupdated 8 y ago
- Alternate reality Solar Systemby Sniper FUhave you ever wondered, What would have happened if everything that happened in our solar system ...never happened? this Simulation shows the shocking differences in the solar system if events like the grand tack, the collision of earth and theia, and more events, simply never happened...1.7k downloadsupdated 3 mo ago
- Destroyer of Planetsby 76561199776394902Do you think the planets are attracted to the star? Nope! Not with this star, the star is attracted to the PLANETS!1.7k downloadsupdated 20 mo ago
- MEGA Planet Packby ajnunez89A planet pack to use in any simulation, free to use for your convinence with no credits required. This pack contains 1 star, 20 planets, 11 dwarf planets, and 8 asteroids. If you enjoy, subscribe!1.7k downloadsupdated 15 mo ago
- Thyraeus System Revampby 76561199153703776This is a prototype of this revamp, anything not realistic, please let me know in the comments!1.7k downloadsupdated 19 mo ago
- Map of The Multiverse V2by MADMAN32417Hello there traveler we hope this map will help you on your journey throughout The Multiverse we hope you will enjoy. This is a version two of this system adding and updateing the lore, but for anyone new seeing this well each celestial body in this smulation represents a dimenson or universe in...1.7k downloadsupdated 6 mo ago
- Realistic Solar Systemby 76561198453556613The solar system but it's realistic! Took me several simulations to make this. I hope you enjoy! Credit to Madplanetguy for the Gas Giants.1.7k downloadsupdated 5 y ago
- Plasma Ballby ajnunez89Hello, and welcome to my simulation! In an update in Universe Sandbox 2, they added the ability to change the reflection of objects. So, I used this to my advantage to make a cool-looking plasma ball! Express your creativity and let your imagination run wild. To change the color of the plasma bal...1.7k downloadsupdated 15 mo 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.

