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
- L and Cmd Binaryby 76561199128017420A really cool binary system me and my friend made after I gifted him this game because he is my best friend!816 downloadsupdated 4 y ago
- earth as a black holeby 76561199017289629a black hole bigger than the milky way815 downloadsupdated 6 y ago
- So, I Terraformed the Moonby 76561198877865380Terraformed the Moon, i didn't know anything better to do.812 downloadsupdated 5 y ago
- Solar System but earth is a big pigeonby 76561198883298057810 downloadsupdated 5 y ago
- new planetby 76561198986884574a new planet formed the next save will be my creations so please watch that and see my creations! well the planet been eating moon so that why its sooooo hot! please like and favrioute! bye!808 downloadsupdated 4 y ago
- Realistic Neptuneby 76561198420320144More realistic colors and bands. this object has arond 60, 70 bands. CREDITS IF YOU USE IT808 downloadsupdated 4 y ago
- Cel Atiby GaladrondHabitable planet in orbit of YBP 1194 (most sun like star yet discovered). Named system objects after Etruscan gods.807 downloadsupdated 7 y ago
- habital moonby WujekDobraRada807 downloadsupdated 4 y ago
- Eccentricity demonstrationby glimmfameIn this simulation you can see how eccentricity affects to orbital velocity of asteroids.805 downloadsupdated 5 y ago
- Fornac System (Altiirean's solar system)by 76561198994278757The Solar System for my Space Engineers Faction. Green ring objects are under COA control Yellow ring objects are under ROK control (Fornac doesn't count) Blue ring objects are under ITE control Planets in order of distance from Fornac -In ring- Rostnac: No one, Lifeless ball of dust Deloris: COA...804 downloadsupdated 4 y ago
- The Nian System(do not unpause)by 76561199496946199Here are all the celestial bodies in this system: (also please don't unpause for the greater good) (and if didnt mention some stuff just double check and if there are any bugs with planets then uh yeah) 1. Nian- the main sequence star holding this system all together which is very similar to our...800 downloadsupdated 12 mo ago
- Custom Sedna 2by 76561198880449275Custom Sedna version 2. This new version includes unique snow patches which the old one lacked. Enjoy! Dont repost! Visit me on Youtube and drop a follow on Steam if you like this item - I will make more! My YouTube My Discord799 downloadsupdated 6 y ago
- Altas Systemby H2O27Atlas System Welcome to the Atlas System! Every body is based off of a real place. If you can guess which place inspired this system, comment below in the workshop. Atlas A Atlas A is a class F star on the warmer end. It was formed as a result of a collision of 2 nebulas. The system is a little y...791 downloadsupdated 4 y ago
- Hujlfypuopjoy horuitioiy fhhuot8p-jioyo675by 76561199471293824这是一个星系星系中很多行星行星有的没卫星有的有卫星有的还有环785 downloadsupdated 3 y ago
- Realistic Planets Packby 76561199133834404Jupiter , Saturn , Planet nine and earth are upgraded to look more realistic than ever before784 downloadsupdated 6 y ago
- Realistic Galaxyby 76561199195510682A galaxy that has stars and planets unlike a one you can spawn783 downloadsupdated 3 y ago
- 2100-01-01by 76561199465447747The humanity has invented a new way to reach mars they colonised it but left earth to junk people on mars are only but started settling Wars are mire frequent due to less minerals from the population of 63B and water on earth is more salty then fresh now. The People left behind historical treasur...781 downloadsupdated 3 y ago
- I made life!by 76561198349182602I made it that Mercury has extraterrestrial life on it hope you enjoy.781 downloadsupdated 4 y ago
- Frozen Earthby 7656119899154435715 Likes and i freeze every planet in the solar system778 downloadsupdated 3 y ago
- Halo - Sanghelios [Urs System]by ZincLore accurate simulation of Sanghelios, orbiting the star 'Urs'. Accurate planetary characteristics to information given within the lore on the wiki.778 downloadsupdated 8 y ago
- Literally Nothingby 76561199135830438Enjoy nothing. It offers everything that you will ever need to destroy, create, and watch. But in reality, you will be doing this with nothing, and seeing nothing. You will be nothing. You are seeing nothing. What is here, is nothing. What you hear, is nothing. This is, nothing. Literally nothing.777 downloadsupdated 15 d ago
- Titan terraformed .by marcmg28With its climate , seasons and polar caps and its dense atmosphere .775 downloadsupdated 7 y ago
- Solar System Alternate Reality 2 - More PlanetsWelcome to a Reality 2088b. 2088b is a reality where the Sun has LOADS more planets. Most objects have descriptions, and changes HAVE been made to already existing planets have also been edited, so make sure to read them!775 downloadsupdated 2 mo ago
- KSP Kcalbeloh System Modby 76561199203400160This is the Kcalbeloh System Spelt "Holeblack" Backwards And swapped words "Blackhole" Is a star system with 1 Black hole and 4 stars (Quintuple) Star system with tons of planets and Few moons -------- (Kcalbeloh) Black hole Onefni ¬ Hot planet Rouqea ¬ Water planet Iomena ¬ Thin Atmosphere plane...774 downloadsupdated 9 mo ago
- Solar System with 3 starsby Radiemos2 extra stars are orbiting binary around the sun. Life on Earth is still possible! Everything is fine771 downloadsupdated 4 y ago
- Simülasyonum - 20241111l66w q fdd j0by 76561199115653433sadece bu simülasyona gir771 downloadsupdated 2 y ago
- Exoplanet--Size comparsion+Retexturedby 76561198886889045This is a size comparison + Re-textured of all the most well-known Exoplanets. (With Earth and the other bodies of our solar system for comparison) This comparison starts with Kepler-37 b, the smallest planet ever found, all the way up to HD 100546 b, which is the largest of all planets! Question...771 downloadsupdated 3 y ago
- Break your computer POVby 76561198835122694Lol rip your computer769 downloadsupdated 6 y ago
- Theoretical Quasi Starby 76561198410634957A Quasi Star is a theoretical star class that has become so giant and massive that a black hole has formed in the center. Feel free to save it and use it whenever.768 downloadsupdated 4 y ago
- Hell's Wrath (V. 1.00 Public Build)by 76561199222084292---Please do not steal/respost this item onto the steam workshop, if you want to make a public edit it, ask Me, Mylo Hebert (Mh11)--- ---HELL'S WRATH - The Death of A System--- ---Welcome to Hell's Wrath, as you can imagine, this system is well, Hellish... It might not be the most interesting sys...765 downloadsupdated 15 mo ago
- True Colored Uranus and Neptuneby 76561199016506446You may have seen those photos of Uranus being a distinct greenish-blue and Neptune being a stunning bright blue well they're not. Uranus's 1986 images were originally realeased as close to their true color Neptune's was "stretched" to a deep blue to highlight cloud features. This led to a decade...765 downloadsupdated 9 mo ago
- Ah'nara Star System Official (v. 34)by 76561199573522325Welcome traveler! Your spaceship has just entered the Ah'nara system, a binary system that was colonized by humans in 300 000 000 AD. The translations of the object's names will appear on the right of the description. 1) Ah'nara A (orb of light and terror) A G-type main-sequence star that hosts 5...760 downloadsupdated 3 y ago
- Default Saturn REMASTERED!by 76561198880449275Remastered version of the default saturn, with much more detail and better looks! Do not steal or repost, give credit if reused, thanks! My YouTube My Discord Server757 downloadsupdated 5 y ago
- wwasm-1wby 76561199859597241My first system.757 downloadsupdated 7 mo ago
- futureby plyitagn_samour future home751 downloadsupdated 8 mo ago
- Star Typesby 76561199548176692745 downloadsupdated 2 y ago
- ring city with habitable erisby 76561199199009230these are my ringns that ive put around a habitable Eris.744 downloadsupdated 5 y ago
- Suryan Systemby 76561199263301738The Suryan System is a system located in the center of the Andromeda Galaxy or about 11k light years away from the center and the system formed about 1.32 billion years ago. Surya is a AF (White star or inbetween A type and F type star) star and is about 1.26 solar masses, 1.15 solar radii and 70...743 downloadsupdated 3 y ago
- The Biggest Starby Wise Mystical Treebig boi be bigger than IC 1101743 downloadsupdated 7 y ago
- My Solar System Part 6by 76561199092298937A new age has begun in the system that leads to colonising other planets and other stars. Also ice and fire wage war between a gas giant and whoever wins decides the fate the new gas giant. Also new mega projects are starting to be made and soon enough start the new era. But Earth sees the system...742 downloadsupdated 4 y ago
- Solar Systemby Hiei®742 downloadsupdated 6 mo ago
- Custom Gas Giantsby 76561198880449275Realistic True-Colour gas giants of the Solar System! All made by me (Madplanetguy) Dont steal these items or repost these items in any form, thanks If you like these, drop a follow on Steam and visit me on YouTube (Madplanetguy), because I will be making lots more planets!741 downloadsupdated 6 y ago
- the Apollo Binary Systemby Blox2007 (the Last Fluorican)welcome to the Apollo-Binary System, a binary system located at the centre of the Apollo-Quarantine Zone which was created and run by the Robloxians and Kerbals since 81 AD and recently co-run by the United Nations of Earth (UNE) since the 2100s, and recently the Fluorican Empire since the 2200s...738 downloadsupdated 6 mo ago
- Avatar - Alpha Centauriby Writhing mass of SILVERFISH!This is an approximate recreation of the Alpha Centauri system from James Cameron's Avatar, featuring Polyphemus and its habitable moon Pandora in the orbit of Alpha Centauri A. Polyphemus, Pandora, and the 13 other moons of Polyphemus are the main stars of the show, both in the movie and in this...726 downloadsupdated 8 y ago
- Interstellar Universe in Universe Sandbox.by cgarrett3452Just interstellar.725 downloadsupdated 4 y ago
- Litah Systemby ajnunez89The Litah system is a system in its early stages, with planets that are still developing. It has 3 stars and 1 brown dwarf. I hope you enjoy! Subscribe! This was a made by me, AJNUNEZ89. Please do not copy this simulation, it took me a long time to make.722 downloadsupdated 14 mo ago
- Realistic Custom Jupiter Modelby 76561198880449275Realistic Jupiter made by me (Madplanetguy) If used in a simulation give credit, thanks! Give it an upvote on steam if you enjoy, as it will help more people find this item! My YouTube Join My Discord Server <Here to chat with me or the community!722 downloadsupdated 5 y ago
- Rostivere Systemby jeevacation720 downloadsupdated 4 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.

