ModsSpace Simulation Toolkit
Space Simulation Toolkit 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.
549 mods, most downloaded first · newest update 18 Oct 2026
- 3 Self-Gravity Galaxiesby RubbleMyStubble3 Elliptical Galaxies in one simulation 1 Huge 1 Medium 1 Small These Galaxies are held by self-gravity. Red = 100 stars (~0.2 Mass) Orange = Galaxy core (~250 Mass)54 downloadsupdated 4 y ago
- dupont district (suburb extroidanere v2)by 76561199482452611I'm pleased to meet you, Eldritch. As agreed upon in the contract, I will serve the Dupont family, and its surrounding area. I would like to bring up some concerns. I have first the cave of that primitive man's house that needs the oil lit as well as mine. The house next to that has a bunker. I t...54 downloadsupdated 3 y ago
- Oil Townby 7656119955584166054 downloadsupdated 9 mo ago
- 50+ Elements (outdated)by Malice50+ elements with multiple types of stone, dirt, explosives, and more to tinker with. I'll make more updated versions of it when I have more time. Elements: Dirt Alien Soil Extremely Unstable Soil Ice Dense Ice Snow Generic Plant Matter Wood Rock Dense Rock Compressed Rock Coal Diamond (It's name...53 downloadsupdated 11 mo ago
- civilized planet (with moon)by 76561199028219773This is the first simulation I've uploaded so it's probably not very good. The planet has 2 cities, a space station (that actually orbits) and an oil rig. The moon has 1 colony, a crashed satellite, and a satellite orbiting around it.53 downloadsupdated 18 mo ago
- LiveFastAndProsper100kby villi.g.diotA bit more pleasant than the last one, this started with the default volcano setup I've changed some rules: Sand phases back to earth, and earth phases back to stone Plants turn to water if they have no links (I left the first vphase argument as 0, it should be 1), and phase back to oil Maybe oth...52 downloadsupdated 3 y ago
- Planet v1by 7656119912709217352 downloadsupdated 3 y ago
- floating city 4by 7656119920631801552 downloadsupdated 12 mo ago
- Stable solar systemby 7656119889471880352 downloadsupdated 2 y ago
- ring collapse into planet testby Blox2007 (the Last Fluorican)51 downloadsupdated 3 y ago
- Early Earth 300kby villi.g.diotA fairly dense earth like planet in an ice age. Increase the heat emission of the sun in the centre to get more tectonic activity. Also that moon might be on a collision course :D EDIT: 300k not 40051 downloadsupdated 3 y ago
- Human Bodyby 76561198866776258Not the exact human body its just a "sketch". I was lazy to make all the details and things the right way.51 downloadsupdated 8 mo ago
- carby 76561199803965173делал около часа, физика настроена под снаряды и взрывы50 downloadsupdated 15 mo ago
- planet with atmosphereby 7656119840116607150 downloadsupdated 3 y ago
- Autoplanet100kby villi.g.diotThis should start a little magnetic core going. If it ever stops add equal parts metal and smoke (smoke has been modded to be magnetic and produce water at melting temperature, not sure what happens if stuff catches fire now) The 2 images show it active and dormant, it can wake up from dormant if...50 downloadsupdated 3 y ago
- outskirtsby 76561199219667703rain world outskirts, enjoy50 downloadsupdated 12 mo ago
- universe-simulator1by Blox2007 (the Last Fluorican)49 downloadsupdated 3 y ago
- Tiny High Thrust Rocketby 7656119900165879349 downloadsupdated 11 mo ago
- THE REAL BIG BANGby 7656119887763441449 downloadsupdated 19 mo ago
- Kepler-1647 b Standaloneby 76561199480786886I made Kepler-1647 b in Space Simulation Toolkit! This took me about 15 minutes to make.. I hope you enjoy my map! Sadly, i havent added any moons or rings to this planet, i am so sorry! SPOILERS: -The next planet...... is actually a star47 downloadsupdated 3 y ago
- Nuclear bombby 76561199533052245Sphereical nuclear bomb, try to find a way to survive this or just vaporize bob. done by low particle spacing oil and rock.47 downloadsupdated 6 mo ago
- midieval-stuffby 76561199219667703this is a medieval looking map i think, it has a wood materiel i made which was hard to make, it took a LOT of trial and error with the plastic settings to get a semi decent wood. also my name is Noah and enjoy!46 downloadsupdated 18 mo ago
- 90° Bellcrank Tutorial Save (1.2M)by 76561198437022811The save used in my tutorial in the discord on how to make a Bellcrank. Comes with the modified Metal, Stone, and Pivot material (material 14). Simply rotate the wheel at the bottom to begin.46 downloadsupdated 3 y ago
- Working Nukeby 7656119900165879346 downloadsupdated 3 y ago
- gravityless planetby Blox2007 (the Last Fluorican)45 downloadsupdated 3 y ago
- Better Planet PLUS civilizationby 7656119909382729845 downloadsupdated 22 mo ago
- DOGE ELT Hull V2by 76561198998017962Hull used in my video: Size: 200K45 downloadsupdated 13 mo ago
- floating city 5by 7656119920631801545 downloadsupdated 9 mo ago
- Wastelandby 7656119915988032344 downloadsupdated 3 y ago
- Blackholeby 76561199533052245Absorbs things very fast even from an insane distance Breaks the maximum speed You can also make other space anomalies whether its made of dirt or rock or lava.44 downloadsupdated 11 mo ago
- parasite black 243 downloadsupdated 3 mo ago
- rotational generatorby Blox2007 (the Last Fluorican)42 downloadsupdated 3 y ago
- tectonic ironby Blox2007 (the Last Fluorican)42 downloadsupdated 3 y ago
- binary test (interior view)by Blox2007 (the Last Fluorican)42 downloadsupdated 3 y ago
- BLACK HOLEby earthbjorn42 downloadsupdated 15 mo ago
- Chemistry Simby 76561198406127068Observe and experiment in this chemistry simulation! You can watch how the different --not real life-- elements form bonds and unique, complex structures that determine their properties. The amount of vibration in the compounds is their temperature; to heat up compounds and break their bonds you...42 downloadsupdated 23 mo ago
- universeby 7656119951190996742 downloadsupdated 2 y ago
- Fluoricaby Blox2007 (the Last Fluorican)41 downloadsupdated 3 y ago
- working water towerby usernamefeel free to edit this. if you edit it you dont need to credit me if you do not change anything about it then credit me41 downloadsupdated 2 y ago
- Self Organization and Dancing Trianglesby Owl41 downloadsupdated 5 y ago
- parking-lotby 76561199219667703just a normal parking lot to destroy. my name is Noah, enjoy!41 downloadsupdated 18 mo ago
- gravitational collapseby Blox2007 (the Last Fluorican)41 downloadsupdated 3 y ago
- Working Star (400k)by 76561198334153271This is almost identical to the 800k version but in 400k. feel free to add more water vapour the core to make the reaction more violent or make it continue if it stops, the lower the Cdist the more violent it will be. The 800k version is here41 downloadsupdated 21 mo ago
- Earth Like - 1by 76561198334153271Has a large and sustainable ecosystem (800k)41 downloadsupdated 21 mo ago
- Simple Fusion Reactorby 7656119900165879341 downloadsupdated 3 y ago
- Nuclear Bomb Detonation19.9K nodes, 2 materials A modified version of oil, packed tight enough to create an enormous explosion when the game is unpaued. Needs fire spacing at 041 downloadsupdated 2 mo ago
- Reworked infection pack v4original items/nodes by TheDubiousAnubias a new space rock? who knows what it does and how it affects anyone.41 downloadsupdated 14 d ago
- brick-homeby 76561199219667703i made bricks. my name is Noah, enjoy!40 downloadsupdated 18 mo ago
549 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.