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
- J-1407Bby 76561199757913600A Planet That Was Discoreved With Massive Rings But Than Scientists Found Out The Rings Didnt Exist.But Still,Enjoy!1.4k downloadsupdated 2 y ago
- Terraformed Marsby 76561199478641060This simulation explores a far-future version of the Solar System in which Mars has been successfully terraformed into a stable Earth-analog world capable of supporting large-scale ecosystems and long-term human civilization. The planet has undergone extensive atmospheric engineering over centuri...1.4k downloadsupdated 6 mo ago
- Solar Generation II - Trappist Systemby 76561199583485448W A R R I O R S O F S E V E N This Is The Second (Technically Last) Part Of Solar Generation II Based In The Trappist System, Note That This Isnt Completely Finished In The Lore Sense And Descriptons Will Be Added Soon, Yet The Entire System Is Here (Minus Asteriods Which Will Come In Later Updat...1.4k downloadsupdated 10 mo ago
- Haylo Star System (Ancient)by nikofbeanHaylo: A star born about one billion years ago, watches upon its newborn and unstable system. Planets are taking forms, nothing will stay the same forever. Perto: The closest planet to Haylo, the object suffered three simultaneous collisions with objects around the size of mercury, that absolutel...1.4k downloadsupdated 3 y ago
- Terraformed Titan With Vegetation, White Clouds, Climate, Cities, and a White Atmosphere.by BlueMarbleNever been done before. Never seen before. A one of a kind object. Don't use this unless you credit me for the Original Object. Enjoy. -BlueMarble.1.4k downloadsupdated 8 y ago
- THE CENTURIS SYSTEMby GooberNikTHE CENTURIS SYSTEM Centuris is a A7V type star, located within the Scutum-Centaurus Arm in the Milky way, This system is set 2 Million years into the future. Centuris has 8 main planets (2 of which are binary) This system consists of 156 attracting objects, all of which have been designed carefu...1.3k downloadsupdated 7 mo ago
- Kerbol system now with coulorsby Exponentveil525This is a recreation of the entire kerbol solar system from kerbal space program1.3k downloadsupdated 6 y ago
- NEW PLANET 9 VARIANTS!by 76561199863195303I made new variants of my custom Planet 9! Feel free to use. No credits required. Enjoy the objects.1.3k downloadsupdated 16 mo ago
- Star Wars Naboo Systemby 76561198741880652This is a star system from the Star Wars franchise because why not. So, um, yeah, thats about it... bye... why are you still reading this?1.3k downloadsupdated 8 y ago
- Realistic Jupiterby supersean081.3k downloadsupdated 5 y ago
- Silika Star System (Before)by nikofbeanPerhaps there was something behind all this... wasn't there? This system counts as a Prequel to Silika Solar System, telling the very past of it, what caused it to change? This game has a whole lore behind it, can you find out?1.3k downloadsupdated 4 y ago
- Accurate solar systemby 76561198993419480even more accurate than the game has1.3k downloadsupdated 3 y ago
- My Custom Jupiterby 76561198880449275Made by Madplanetguy Do not reupload to the workshop individually without permission 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!1.3k downloadsupdated 6 y ago
- Another Modded World With Vegetation, VERY BLUE clouds, White Atmosphere, Cities, and Climate.by BlueMarbleHere's another bad-looking boi for all of y'all out there. Enjoy. -BlueMarble.1.3k downloadsupdated 7 y ago
- TON 618by dr_nefarioTON 618 is a hyper-luminous quasar located 10.4 billion light years from Earth in the constellation of Canes Venatici. Discovered in 1970 by the McDonald Observatory, it is the current record holder for the largest confirmed black hole humans have found. Its mass is 66 billion times greater than...1.3k downloadsupdated 6 y ago
- Outer Wilds System - end of the loopby 76561198799030479I've tried my best to recreate the Outer Wilds system at the end of the loop, at a more realistic scale. NOTE: THIS SYSTEM CONTAINS MAJOR SPOILERS FOR OUTER WILDS. DO NOT OPEN THIS SYSTEM UNLESS YOU HAVE BEATEN OUTER WILDS AND ITS DLC.1.3k downloadsupdated 3 y ago
- Denrad with Sunsets, Purple Clouds, White Atmosphere, Vegetation, and Climate.by BlueMarbleHooray hooray my first water-world. I really like this object and It has a nice feel to it, I hope you enjoy it as well. -BlueMarble.1.3k downloadsupdated 7 y ago
- HD 100546bby 76561198379584282This is one of the largest known planet HD 100546b. (some planets like DENIS-P J0823 b is larger) Search HD 100546b in the internet1.3k downloadsupdated 6 y ago
- Murder Drones systemby 76561199237007561Copper idk its our star copper 9 our home planet pretty cool its cold though also heres a note from a worker drone about this planet "It's not like we revolted and killed all humans or anything, mostly because they handled that just fine all by themselves..."1.3k downloadsupdated 3 y ago
- Avalar (The world of WoF)by 76561198828035116This project has been in the backburner for so long, and I finally decided to get it done, so here it is. The world of Wings of Fire complete with its 3-moon system and continents. (btw the name was decided on a reddit post on the r/WingsofFire subreddit)1.3k downloadsupdated 16 mo ago
- The asteroid that may hit the Moon in 2032 2024 YR4by 765611996869534552032 Lunar Impact Simulation – Asteroid 2024 YR4 Object Name: 2024 YR4 Type: Stony Near-Earth Asteroid Estimated Diameter: 50–60 meters Impact Velocity: ~18 km/s Target: The Moon Estimated Impact Date: December 22, 2032 (low probability scenario) Scenario Description In this simulation, asteroid...1.3k downloadsupdated 8 mo ago
- MEGA size comparisonby 76561199002320354:D -Keidon Unpausing simulation may cause chaos1.3k downloadsupdated 2 y ago
- Realistic Uranus (With 7000+ bands)by 76561198880449275This is my version of Uranus, it has 7000+ bands and is based off real colour. If you enjoy, drop a follow as I will make a lot more planets! This is one out of many realistic gas giants i make, with my next project being a Ten Thousand band jupiter. (NOW AVAILABLE) This Uranus took 8 hours to pu...1.3k downloadsupdated 6 y ago
- Pluto wakes upJust a recreation of Pluto waking up on the moon woke up wiki pluto's 2nd moon is nix but i think its hydra because its pluto's largest moon sorry there is no satelites1.3k downloadsupdated 2 mo ago
- [BROKEN] Eteris Star System (Future)by nikofbeanThe sequel to Eteris Star System (Near Future) Eteris, a dying star at the end of its brightening life, the star has collapsed, it no longer consumes the same fuel as before, the native population, now seek a land far from home, searching their only destiny... Death. EACH PLANET IS UNIQUE! But th...1.3k downloadsupdated 4 y ago
- my black hole collectionby 76561199099342396all of the black holes i made.1.3k downloadsupdated 3 y ago
- BOB AND JEFF WITNESS THE END OF THE WORLDby ajnunez89i dont know why i made this1.3k downloadsupdated 7 mo ago
- Acurate Pangea Earthby 76561198990385018they should really add like a desert brush and what not ong1.3k downloadsupdated 3 y ago
- Terraformed Solar System (REMASTERED) (1 YEAR UPDATE)by BlueMarbleYou guessed it! I'm finally making an update to this old sim. The list of objects will be arriving in a separate sim soon. It's been nearly 1 WHOLE YEAR sine I touched this thing. I was originally going to LEAVE IT that way, but with so many modding techniques and ideas that I got over my summer...1.3k downloadsupdated 7 y ago
- Future Humans (ALIEN INVASION)by 76561198996950225-Humanity has colonized other Star Systems like this- -The Dmec System- -Juno Home Planet for the Humans and main Navy Base for BattleShips -Monogobb Is a important planet for Gas mining and the largest in the System -Jennes and Moon Are main mining Bases and living places for Humans. -SPACE STAT...1.3k downloadsupdated 2 y ago
- (NEW) Trisdia Prime Planet with Red Sunsets, White atmosphere, Red Clouds, Cities, Climate, and Vegetation.by BlueMarbleI got a few DMs on discord saying that my sunsets weren't visible enough, so I decided to make Trisdia Prime, which as you can tell by the picture, has more visible ones. Part of the Prime System, which will release soon. Enjoy, -BlueMarble.1.3k downloadsupdated 7 y ago
- Lux Systemby 76561199025593046Welcome to the Lux system! This is my first ever simulation that I tried my hardest on. I hope you enjoy what I worked on. James Lux Lux is the star of this system. It has 6 Rocky Planets, 2 Asteriod Belts, 6 Gas Giants, and 5 Dwarf Planets. Satas Satas is the first and closest planet to Lux. It...1.3k downloadsupdated 9 mo ago
- Realism Solar System (V3.2)by 76561199474057913Planets replaced by Realistic planets... Small updates every 2 weeks this is a test to see how much i can get universe sandbox to get realistic. So theres no need to subscribe to this ._.1.3k downloadsupdated 21 mo ago
- BIG FUCKING COWby 76561199195903986HOLY FUCKING SHIT IT IS SO FUCKING BIG THAT ITS EVEN BIGGER THAN A FUCKING MOM WHALE1!1!1!1! (made by original creator of big fucking whale)1.3k downloadsupdated 4 y ago
- Terraformed Taylor with Pulsar Jets, Sunsets...by Chocice75...biomes, vegetation, climate and glowing orange clouds. Remember my pulsar planet? Well, I decided to terraform it, because why not?1.3k downloadsupdated 7 y ago
- Amogus Planetby 76561198871612074A simple reprodution of Amogus P.S Red's kinda sus vote him ඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞඞ1.3k downloadsupdated 5 y ago
- Midnight A1*by 76561199817573157Midnight A1* is a black-hole in the middle of a star system that i made in this universe. If you get it please like it. This is also my first workshop item!1.3k downloadsupdated 21 mo ago
- The (Mostly) Real Solar Systemby 76561198410634957I tried to make this as realistic as possible with all of the assets in this game. If I am missing something or something is inaccurate, please feel free to comment! Note: VERY LAGGY! Let me know if you want me to release an optimized version, or add an optimization update.1.3k downloadsupdated 4 y ago
- the biggestby 7656119922049298131 planets big.1.3k downloadsupdated 5 y ago
- Black hole orbiting sunby 76561198351924269This is something that could not happen irl, I think. Something isnt right here and this may be an error in the game. So enjoy something quite interesting and cool Space is cool!1.3k downloadsupdated 4 y ago
- KSP planets !by 76561199086118163This is some solar systems with all vanilla planets in KSP and with some planets of the Kopernicus mod.1.3k downloadsupdated 6 y ago
- Kerbol System (now with eclipses)by 76561199471603723The Kerbol system is the planetary system in which the game Kerbal Space Program takes place. it consists of a star named Kerbol and it's celestial bodies, including planets, moons, and asteroids1.3k downloadsupdated 3 y ago
- Star Wars Star System | Mirgoshir Systemby 76561198990738382In this simulation you´ll be able to explore the Mirgoshir System, which contains the canonic planet, Agamar. Agamar is a planet located in the Agamar system of the Outer Rim Territories. The planet was located in grid square M-5 on the Standard Galactic Grid. It had a surface covered in rocky te...1.3k downloadsupdated 4 y ago
- Universal Wars Minesura System (Discontinued)by ItzRaidenNOTE!: I will not be working on this sim as it does not fit what I had in mind, a 2.0 has been released and development has already begun on it This item is considered to be discontinued, but a big thanks to everyone who made this item reach the front page of the workshop!1.3k downloadsupdated 5 y ago
- A Modded object with RED SUNSETS, Red clouds, Climate, Cities, and RINGS!by BlueMarbleYou heard that right, this is a new type of breed that has been known of but not made public just yet. Not only are the clouds more vibrant than regular ones, but If you turn off clouds, you will see a somewhat bright-dark red at the sunset margin on the planet. I hope you enjoy, as this doesn't...1.3k downloadsupdated 7 y ago
- What can kill the sperm whaleby 76561198897183697Not a pigeon, not a satellite, not Cassini, WAIT WHAT!?1.3k downloadsupdated 4 y ago
- Modded Jool (KSP) In Us2. (READ DESC)by BlueMarbleI can smell the "BlueMarble! This doesn't look like jool, Clickbait!" Comments. Hear me out. Colors don't work out the way you want to in this game. Believe me, I spent 20 minutes trying over 43 different types of green. Any other color besides the 3 used here would either be too dark, too bright...1.3k downloadsupdated 8 y ago
- Dollar store Tony Stank approves.by Jay From Space(Not a "Tesla Fan Boy" i still like brapping supras) Petition do add The Space X Starship? Find the Letter, Number, Emoji,etc. Anything that is not a E And say it in the Comments. 🔥🔥Please don't Name a Letter if your name is already pinned🔥🔥 💎👑👑👑MOST LOYAL COMMENTER: MC.Donlads👑👑👑💎 Can you find t...1.2k 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.

