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
- Terraformed Inner Solar Systemby TomaTerraformed the entire inner solar system1.5k downloadsupdated 5 y ago
- My Simulation - 20240731-153804by 76561199229960531TON 618 and the sol1.5k downloadsupdated 2 y ago
- [BROKEN] Eteris Star System (Near Future)by nikofbeanI've oficially released the Sequel: The sequel to Eteris Star System (Present) Eteris, a old-aged star system, with its native population straving to survive on this harsh and unkown environment. Managed to prevail and learn knowlodges between worlds... what will be their fate? This system will h...1.5k downloadsupdated 4 y ago
- My Custom Version of Gj 5312 b.by BlueMarbleThis is a Jupiter-Sized Gas Giant found orbiting a star an eighth the mass of our sun, and orbits at around Mercury's orbit. There was some concept art for this planet online, so I decided to make the concept art I found, and I'm really proud of it. I hope you enjoy. If you wanna join my Discord,...1.5k downloadsupdated 7 y ago
- Apocalypse Earthby 76561198880449275A scenario in which Earth has been destroyed, likely by pollution, and only microbes remain, floating in the atmosphere above the acidic surface and oceans. If you like this item, drop a follow on Steam and visit me on Youtube where I will make more like this! Dont steal or repost this item, than...1.5k downloadsupdated 5 y ago
- the last red dwarfby 76561198840704762in about 115 trillion years the last red dwarf star as it slowy dies into a white dwarf. it happens when the the red dwarfs fuel runs out. Red dwarfs also live for about 10 trillion years untill they are white dwarfs. The resson why red dwarfs live so long becuase there fuel mixes so thats why an...1.5k downloadsupdated 6 y ago
- Planet pack 3by 765611991955106821.5k downloadsupdated 3 y ago
- supert banded jupiter with atmosphereby 76561199805248699just look ;p1.5k downloadsupdated 7 mo ago
- White hole simulationby BluPhoenixCZWarning weaker computers can be blown up even I have only 17 fps but it cost for that.1.5k downloadsupdated 8 y ago
- Gliese 588 Systemby ctf011Gliese 588 is a red dwarf about 19.3 light years from Earth. It was discovered between 1894-1927 by John Thome or Robert Innes. The system has two known planetary bodies, GJ 558 b and c. Both discovered in 2019 by radial velocity.1.5k downloadsupdated 6 y ago
- Stephenson 2-18 MEGASYSTEMby ChippyMade for Youtube1.5k downloadsupdated 4 y ago
- The Alderaan System (Star Wars)The Alderaan system was first seen in the very first Star Wars movie. Here we saw both the technological superiority and cruelty of the Galactic Empire when the Death Star destroyed Alderaan. I have used both canon and legends sources to recreate the Alderaan system to the best of my ability. I h...1.5k downloadsupdated 24 d ago
- if saturn had rings 5x bigger than j1470bby 76561199120344222there is a lot of lag so please dont crash your computer1.5k downloadsupdated 3 y ago
- SpaceEngine Planet Portrayed In Universe Sandbox 2.by BlueMarbleI was playing SE little while back, and saw this deserty water planet with cool ice caps and clouds and atmosphere, so using modding, I added climate (For the Ice Caps), Cities, and the purple atmosphere It had. I hope you like this, as it's one of my favorite creations so far. Sincerely, BlueMar...1.5k downloadsupdated 8 y ago
- The Skybox Theory Planetsby 76561199740792954These are Planets from the Skybox Theory. No credits needed [: Dynux is technically not a Planet1.5k downloadsupdated 11 mo ago
- The Apex (Trojan Update)by 76561199055652942The Apex is a large planetary system with several planets and a star, all the planets have moons, but there aren't many dwarfs and not enough asteroids orbiting Apex, so this system is highly unfinished, but I got the major parts of it done Lore: Warning, a lot of stuff won't make sense by our la...1.5k downloadsupdated 12 mo ago
- Dinos, Space, and the Aliens from Europaby 76561199136483004Greetings NG! I noticed you liked alt solar systems so I made one myself. Enjoy! Sun: This G type main sequence star is the center of the sol system. However, this system's present time is set 66 million years prior. When it was the late Cretaceous. Mercury: A small, hot, dark red rock and the cl...1.4k downloadsupdated 22 mo ago
- Super Realistic Mega banded Saturn with 2000+ bands! (No rings version, check description for the full version)by DeMooniCIMPORTANT: Check the description of the article of the full version for more info! Here is the link:1.4k downloadsupdated 4 y ago
- Kepler-138 Exoplanet Systemby 🐋 Syz°.fish 🐬Twin water worlds and a Mars-mass planet around a red dwarf // Kepler-138, also known as KOI-314, is a real system of four known exoplanets located 218 light-years away in the constellation Lyra. The host star Kepler-138 is a fairly young red dwarf with an estimated age of 2.21 billion years. It...1.4k downloadsupdated 3 mo ago
- My Realistic Neptune (4000 Bands)by 76561198880449275@A Neptune with 4000 bands Based off actual ESA and NASA pictures (Uses true colour) Made by me (Madplanetguy)1.4k downloadsupdated 6 y ago
- (UPDATED) Terraformed Mars with Vegetation, White Clouds, Blue Atmosphere, Cities, and Climate!by BlueMarbleI uploaded this as a seperate sim to see if we can get this on most popular, and to get it to where the other Mars is. Anyway, enjoy.1.4k downloadsupdated 8 y ago
- EMBER'S LIGHTby 76561199074823431Ember's Light, holding a few barren worlds and a green giant. --------------------------------------------- System stats -{9 objects Ember's Light -{2910K -{0.106 R Sun -{246g Dravite -{207 °C -{0.323 R Earth -{0.254g Cinnabrite -{174 °C -{0.524 R Earth -{0.392g Peridot -{-36.2 °C -{5.64 R Earth...1.4k downloadsupdated 4 mo ago
- NEW MATERIALS! Methane, Helium and Nitrogen Gas Giantsby 76561198880449275Helium, Nitrogen, and Methane gas giants in Universe Sandbox. You cant see too well ingame, as these new elements only work on Human Scale Objects, not actual planets, and they dont show in the composition Tab. Despite this, these elements are very much present in these planets, and you can check...1.4k downloadsupdated 6 y ago
- Default Jupiter REMASTEREDby 76561198880449275The default jupiter is the most blurry, inaccurate planet, except maybe the Uranus, that is in the game. So I spent 3 hours upgrading it If you use this in any sims give credit, thanks! Drop an upvote on steam if you like it! It helps more people see the item! :) My YouTube Join My My Discord Server1.4k downloadsupdated 5 y ago
- Kerbol System (Kerbal Homeworld)by Reesecandy2003Help for the Game, Kerbal Space Program. - Reese C. Anderson1.4k downloadsupdated 6 y ago
- Upsilon Andromedae star systemby 76561199093760867Upsilon Andromedae is a binary star located 44 light-years from Earth in the constellation of Andromeda. The system consists of an F-type main-sequence star (called Andromedae A and official named Titawin) and a smaller red dwarf. Upsilon Andromedae is located fairly close to the Solar System at...1.4k downloadsupdated 4 y ago
- (NEW) Custom Modded Venusby BlueMarbleThis is probably the better version of the venus in-game. The one In-game has a very bad atmosphere color and type, so I decided I'd make a better version of that Venus. I hope you enjoy. -BlueMarble.1.4k downloadsupdated 7 y ago
- Beteigeuze Supernovaby 76561199123066933Was wäre wenn der Stern Beteigeuze zu einer Supernova explodieren würde?1.4k downloadsupdated 4 y ago
- Lalande 21185 Exoplanet Systemby 🐋 Syz°.fish 🐬Three potential exoplanets around the fourth closest star // Lalande 21185, also known as Gliese 411 or HD 95735, is a real exoplanet system located 8.30 light-years away in the constellation Ursa Major. It comes in behind Alpha Centauri, Barnard's Star, and Wolf 359 as the fourth-closest stellar...1.4k downloadsupdated 3 mo ago
- Apolis System (Abandoned)by 76561199179548993Star: Apolis A Planet(s): Apolis A-1, Apolis A-2, Apolis A-3, Apolis A-4, Apolis A-5 Moon(s): Apolis A-1a (Rogue), Apolis A-1b, Apolis A-2a. Apolis A-4a, Apolis A-4b, Apolis A-4c, Apolis A-4d, Apolis A-4e, Apolis A-4f1.4k downloadsupdated 21 mo ago
- TERRAFORMED EARTH With Vegetation, Climate, Cities, Clouds Etc.by BlueMarbleMagic gamers. I hope you enjoy, as this is my first upload in forever. -BlueMarble.1.4k downloadsupdated 7 y ago
- (BRAND NEW) Modded Earth with Custom Colored Cities!by BlueMarbleTook me a while to figure this out, so I hope you enjoy. -BlueMarble.1.4k downloadsupdated 7 y ago
- the Solara and Lumina star systumby 76561199435990311{DISCLAMER} this systum is a systum that will be used in a role-play time thing as it will be conected to a discord. Ignis: a valcanic rock with a ring systum Terralith: a rocky world with a thin atmosphire but no water. Lithia: a small but cratered moon. Pyra: a large(ish) moon with valcanic act...1.4k downloadsupdated 2 y ago
- Minos Systemby 76561199091065760A young system with a slightly developed planetary system. Every important object has a description. ONLY UNPAUSE IF YOUR COMPUTER IS REALLY GOOD!!! --- i don't want to bother writing an actual description, read the personal ones.1.4k downloadsupdated 13 mo ago
- Hadean Beginnings - (4.45 BYA Solar System)by 76561199583485448Another Laggy Thing, Heres My Headcannon (Genesis Model) Of Our Early Solar System (Based On Actual Theories And One Of My Own Kuiper Belt Theories), I Created This On My Birthday <3, Note That Some Impactors Have There Own Names (Aprohidte,Cupid Are The Venus Impactors, Pheaton Creates The Borea...1.4k downloadsupdated 10 mo ago
- terraformed venusby 76561199124292959this venus is cool1.4k downloadsupdated 5 y ago
- HD 184010 Exoplanet Systemby 🐋 Syz°.fish 🐬Compact trio of gas giants orbiting an ageing orange star // HD 184010 is a real exoplanet system located almost exactly 200 light-years away in the constellation Vulpecula. It consists of an evolved K-type star and three Saturn-mass gas giants. The host star, HD 184010, is younger than the Sun a...1.4k downloadsupdated 3 mo ago
- a planet with lifeby Guelonator23is the cooooolest simulation ever and their have a planet with life1.4k downloadsupdated 8 y ago
- The pyro star sistemby 76561199749291356The Pyro Star System "the place where the life shines" WARNING: SOMEONE STEALED THIS SYSTEM FROM ME AND MADE SOMRE CHANGES TO IT, THIS IS THE REAL PYRO SYSTEM, IM STILL WAITING FOR HIS RESPONSE Update 1.4.1 "The Small Things Still Matter" Hey after this one check my other system called Gridlu sys...1.4k downloadsupdated 6 mo ago
- Laque, with white clouds and a BLUE atmosphere. (DESC)by BlueMarbleNow, what's so different about this object than the rest, I hear you say? This one has white clouds and a different colored atmosphere without the object being called "Earth." ...kind of. The name is actually so glitched to the point where you can't see where "Earth" is in the name. It'd take you...1.4k downloadsupdated 8 y ago
- Stephenson 2-18 systemby Beauty QueenThis is a system of the star in the name.=)ENJOY!1.4k downloadsupdated 17 mo ago
- oby 765611990006590841.4k downloadsupdated 6 y ago
- Vortex Systemby ZerMCGuyThis is a random solar system i made! I gave each planet a unique name. There is around 13 planets. Enjoy! :)1.4k downloadsupdated 6 y ago
- My first custom solar systemby 76561199095958793hi i just started this game1.4k downloadsupdated 6 y ago
- HOWby ExiledNeptuniumngl this system sucked so i've replaced it with something much better1.4k downloadsupdated 5 y ago
- [BROKEN] Redarf Star Systemby nikofbeanYet another Star System. Redarf is a red dwarf star located in the middle of a huge nebula, it's a new star for its "cold" temperature, the system is relatively small, but it doesn't take the will to explore this common world. Everything on the screenshots can be viewed in game, you are not being...1.4k downloadsupdated 4 y ago
- Proxima Centauri d (Exotic Life)by 76561198880449275A model of proxima centauri d with surface life of an exotic kind. Made by me (Madplanetguy) do not steal or repost in any form, 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!1.4k downloadsupdated 5 y ago
- Avatar - Alpha Centauriby 76561199583485448Here Is An Recreation Of The Alpha Centauri Trinary From Avatar!, Based On The Game And Movie Cannon From The Avatar Wiki, Note That Some Things May Be Slightly Incorrect In The First Verison But Its Still Mostly Accurate Too The Lore, It Includes All 3 Stars And There Planets And Moons (Some Of...1.4k downloadsupdated 9 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.

