17subscriptionsGrowth: collecting dataUpdated: Aug 30, 2026
Mods: Universe Sandbox
Mods for your games from Steam Workshop and Source.
Counts describe mods indexed by GameRadar. Workshop popularity is measured in subscriptions.
Indexed mods: 639
The Nibian System
Universe SandboxWith around 3 Hours of work, i Give you This System... THE NIBIAN SYSTEM! This is A rlly Cool system that took 3 Whole hours to make, Just know that i wont Give descriptions to the Moons & Stuff This System Includes... a
Other
17subscriptionsno growthUpdated: Nov 1, 2026
vianqui system
Universe SandboxVianqui System (Detailed version not working, sorry) -Turn on orbits -You can press play to see events working events like seasonal lakes and atmospheres -Turn on labels Hey, you've finally made it here. Its been a while
Other
16subscriptionsno growthUpdated: Oct 31, 2026
Satori
Universe SandboxThis is the solar system Satori. There are several habitable planets and many more interesting things. Humans are starting to move out of this system and into new territories.
Other
15subscriptionsno growthUpdated: Oct 28, 2026
Matinou system
Universe SandboxNamed after its habitable planet the matinou system is a system formed around a orange dwarf star named Manthlelisk
Other
14subscriptionsno growthUpdated: Oct 11, 2026
Imperatoris system
Universe SandboxThis is the Imperatoris System. This is my first system, and I hope you enjoy it. I might make a version showing the past and future of the system if I feel like it. You can run the simulation. Also, good luck with the p
Other
13subscriptionsno growthUpdated: Sep 5, 2026
BX215
Universe SandboxBX442 Воу ну и ну куда же мы прилетели странная галактика надо бы узнать о ней всё( Вымышленный персонаж ) BX442 Эта галактика удивляет и очень не обычно её звезда она почти как солнце очень удивительна и заинтересовает.
Other
13subscriptionsno growthUpdated: Oct 7, 2026
Copper-9 system final
Universe SandboxMy first ever system inspired by animated series Murder Drones. It has only 2 things from the show - the star called Midna and Copper-9 itself. I tried making this system as realistic as possible, whila also adding lore
Other
13subscriptionsno growthUpdated: Oct 12, 2026
HD 198733 System
Universe SandboxMore than 60 light-years from Earth, in the constellation Vulpecula, lies the HD 189733 system. Its primary star, HD 189733 A, is a relatively small orange-colored K-type star with a temperature of roughly 5,000 K. Altho
Other
12subscriptionsGrowth: collecting dataUpdated: Aug 25, 2026
The Cycle
Universe SandboxEverybody's favourite metroidvania about an ecosystem. For us, itis one star amongst countless many. For the Slugcats, it's the only home they can ever know.
Other
12subscriptionsno growthUpdated: Oct 28, 2026
Titanusis brown dwarf system
Universe SandboxA system 0.2 AU big, it has this list of objects Titanusis- brown dwarf Hot Ice- Warm Neptune Alphora- Temperate Marine Terra With Life Monilis- Frigid Miniterra Paralisis- Frigid Jupiter Avamzi- Frigid Lacustrine Subter
Other
12subscriptionsno growth · 25 hr. agoUpdated: Sep 25, 2026
Sixth Dwarf Planet - 2026 ED₁₃₈
Universe Sandboxhttps://images.steamusercontent.com/ugc/358399162714061671/4AA68E9A6FAAAB6CD20001DF585ADE7D7EFCCB09/ This depicts 2026 ED₁₃₈ as dark. If it is a bright object, then it may not be a dwarf planet.
Other
11subscriptions≈ +1 subscribers / dayUpdated: Oct 31, 2026
All of Saturn's moons - 292 moons!!!!
Universe SandboxHello there! Welcome to this simulation!!! This shows all the 292 moons of Saturn discovered. Do you want to know why I made this? I made this because these images of Saturn's moons were nice, but they were 2D so I could
Other
9subscriptionsno growthUpdated: Sep 7, 2026
ALEX 1 system
Universe Sandboxthat is it, my masterpiece, ALEX 1 system is a solar system including 5 rocky planets, 2 mini-neptune, 1 gas gigant, much dwarf planets and asteroids, TNOs, a interstellar visitor and more! in the descripition of some ob
Other
9subscriptionsno growthUpdated: Oct 7, 2026
The Hadean
Universe SandboxSource : Wikipedia The Hadean is the first and oldest of the four geologic eons of Earth's history, starting with the planet's formation about 4.6 Ga (estimated 4567.30 ± 0.16 Ma set by the age of the oldest solid materi
Other
8subscriptionsGrowth: collecting dataUpdated: Aug 29, 2026
Dinosaur wiping astroid impact
Universe SandboxOld earth right before the astroid hit press play to simulate it way back then earth had more oxygen witch meant bigger life so thats why animals were huge turn on your flashlights
Other
8subscriptionsGrowth: collecting dataUpdated: Nov 1, 2026
Vega IV wakes up
Universe SandboxJust a recreation of Vega IV waking up sorry that i couldnt get the other moons frown and i could not get the spikes either so which planet is next?
Other
8subscriptionsno growthUpdated: Sep 5, 2026
binary pulsars
Universe Sandboxthis simulation adds in two pulsars binary if you dont know what a pulsar is its a tiny star, thats exremly dense one of the most densiest objects in the universe found , pulsars can be very hot around 50,00C or 100,000F
Other
8subscriptionsno growth · 25 hr. agoUpdated: Sep 23, 2026
M&N System (Alpha 0.0.2)
Universe SandboxHumanity recently reverse-engineered technology from a recently discovered alien starship, humanity is now a space fairing civilization travelling the galaxy. Recently, in 2234, a solar system was discovered that is now
Other
8subscriptionsno growth · 25 hr. agoUpdated: Sep 27, 2026
타르파디나 성단
Universe Sandbox베타 버전 - 이는 현실이 아니며 다 제작자의 상상속 세상일 뿐입니다. 그리고 이 시뮬레이션은 안정적이지 않고 불안정하며 현실적이지 않을 수 있으며, 수차례 업데이트를 계속 진행할 예정입니다. 현재는 제작 과정중에 있습니다. ㄱ v 0.01 출시 및 기본 행성들 출시 v 0.02 버그 고침 및 19개의 추가 천체 출시 v 0.03 외계 행성 한개 및 TIO족 소행성 3개 출시 v 0.03(2
Other
8subscriptionsno growth · 25 hr. agoUpdated: Sep 28, 2026
Helios-Prime System
Universe SandboxThe Helios-Prime System Consists of 8 Planets Dozens of Moons and 4 dwarf Planets
Other
8subscriptionsno growth · 25 hr. agoUpdated: Sep 28, 2026