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
- Working Active Combustion Rocketby 7656119900165879374 downloadsupdated 11 mo ago
- pack-1-satellite10.5K nodes, 13.9K links, 15 materials74 downloadsupdated 2 mo ago
- G R O W T Hby Kieran Vax'ilianmade this a while back, showed images of its progress on the discord, and now decided to share it since I helped someone figure out how to share to the workshop and figured "why not" its a weird plant growth, never found out how it grew like that, lol. feel free to feed it, or burn it, its yours...73 downloadsupdated 4 y ago
- Humanby 7656119951190996773 downloadsupdated 21 mo ago
- HUMAN AND BALLISTICSby buvin456Press Spacebar to unpause this is just "Human Anatomy" with some tweaked settings and some projectiles.72 downloadsupdated 18 mo ago
- Custom Solar System 1.1 [UPDATED!!!]by 76561199239312439Wow! An entire simulated system from a custom proto-planetary disk that ACTUALLY works. Who would have guessed? Anyways, enjoy as the system evolves over time, or just mess around with them. (Collisions are awesome) INCLUDES: Molten cores! Moons! Asteroids! Minor planets! Functional stars!* Aweso...72 downloadsupdated 2 y ago
- Reworked Infection ItemsTheDubiousAnubias's flesh infection expansion72 downloadsupdated 1 mo ago
- rigid buildingby 76561199219667703this is a building, except it doesn't wiggle as much and instead is more rigid. and also im noah not robin btw. note! this dose not make the settings perfectly rigid, just a lot more rigid.71 downloadsupdated 18 mo ago
- node galaxy formationby Blox2007 (the Last Fluorican)71 downloadsupdated 3 y ago
- MoldingFruit22.0K nodes, 39.9K links, ~20 materials, 128 reactions. To start the growth, keep the fruit between 20C-50C to awaken dormant yeast and bacteria. If you want clean reactions, use raw juice and skins without mold spores or other bacteria. Here is, roughly, main reactions (many creates byproducts l...71 downloadsupdated 2 mo ago
- Earth and Moonby 7656119892687694170 downloadsupdated 4 y ago
- Mbtby 7656119949257052669 downloadsupdated 21 mo ago
- planet v1by 7656119837125206269 downloadsupdated 3 y ago
- convection 3 cellsby 7656119843288637469 downloadsupdated 4 y ago
- planet with parasiteby 76561199619921774LORE: A capsule containing a parasite was dropped on this planet. Information: Adds 3 materials that will infect other materials. -parasite -infected dirt -infected stone the parasite will convert water and plants into itself Also, all materials can melt ice. methods of containment: The parasite...69 downloadsupdated 9 mo ago
- nuclear power stationby 76561199495776933I know that the station is crooked, I made it in 20 minutes69 downloadsupdated 8 mo ago
- Amoeba1.2K nodes, 615 links, 19 materials, 19 reactions69 downloadsupdated 1 mo ago
- Doge V2 Protoby 76561198998017962Simulation size: 200K67 downloadsupdated 22 mo ago
- Highway (bad)by 7656119833392082367 downloadsupdated 5 y ago
- bomb test desertby 7656119948245261166 downloadsupdated 3 y ago
- wtf you have to see thisby 7656119832844001966 downloadsupdated 5 y ago
- Naturally Created North Americaby 7656119899725341466 downloadsupdated 5 y ago
- bridgeby 76561199219667703i was originally trying to make the tower bridge from London but i failed to make the top bridge not collapse with the games current settings so it can not be consider that. my name is Noah, enjoy!65 downloadsupdated 18 mo ago
- Earth (amost realistic but eh a 2)by 7656119891778055165 downloadsupdated 3 y ago
- M1A1 Abrams SEP V2by 7656119946798814764 downloadsupdated 14 mo ago
- iron galaxy2by Blox2007 (the Last Fluorican)63 downloadsupdated 3 y ago
- huge-bunkerby 76561199219667703this is a big bunker. the pipe dose not really work but you can put water in it if you want, nor dose the not gate work. also the stone is not the same color as it is in the image. when you press the space bar, it will be gray hopefully. my name is Noah, enjoy!63 downloadsupdated 18 mo ago
- reactor template to use to power stuffby 7656119882517537362 downloadsupdated 3 y ago
- big bangby 76561199035767211It is just a big bang.60 downloadsupdated 3 y ago
- fort battlefieldby 7656119948245261159 downloadsupdated 23 mo ago
- circleby Owl58 downloadsupdated 5 y ago
- rotating moon(and future ring)by [Fr]Mr.Sim58 downloadsupdated 4 y ago
- elizabeth-towerby 76561199219667703note, this is not totally proportional to the real thing, my name is Noah, enjoy!58 downloadsupdated 18 mo ago
- Mars (with moons)by 76561199480786886I made Mars in Space Simulation Toolkit! This took me about 11 minutes to make.. I hope you enjoy my map! OH AND ALSO, I FINALLY ADDED A MOON TO ONE OF THE PLANETS! WHICH I ADDED PHOBOS AND DEIMOS TO MARS! SPOILERS: -The next planet is an inner planet... the 2nd away from the sun. a hot one....58 downloadsupdated 3 y ago
- compact planetby Blox2007 (the Last Fluorican)58 downloadsupdated 3 y ago
- turbulenceby kudinov.pavel58 downloadsupdated 5 y ago
- Active Worldby 7656119884793535757 downloadsupdated 18 mo ago
- Cooking Pot (volcano map) v0_7_2_1by CloudZeroThis map is showcasing how you can use oil to turn a steady stream of water into steam in a "cooking pot". It's using a sun with it's heat turned down.57 downloadsupdated 3 y ago
- ASTEROID1.8K nodes, 4.8K links, 5 materials57 downloadsupdated 2 mo ago
- atmosphere rise and fall V1 (400K)by 76561198423871671ive been making some atmospheric simulations recently and thought i should share my findings. this sim has a main element air the air when heated to above 100 deg will convert into steam and rise and when cooled to -1 deg will turn into ice and fall back down to the surface and turn back into wat...56 downloadsupdated 3 y ago
- micro planet 2by 7656119840116607156 downloadsupdated 3 y ago
- projectile Testing with compressed exploding-Bulletsby 7656119957345929756 downloadsupdated 18 mo ago
- 60 Elements (200k Edition)by MalicePractically turning SST into Powder Toy, here's a 200k particles version of "60 Elements" improving on over 20 of the previous elements, and including 6 new ones to toy around with! If you want any elements added, suggest them in the comments or on the discord server.56 downloadsupdated 9 mo ago
- Big airshipby 76561199366234293This construction is just a test. The airship features a plantation with water and lasers simulating sunlight. It also includes an arena, a control room, a vault, bedrooms, and a few other areas. There is also a smaller vehicle for personal use.56 downloadsupdated 4 mo ago
- Logic 1Basic logical components to mess with.56 downloadsupdated 2 mo ago
- planet idkby 7656119920275813855 downloadsupdated 3 y ago
- homeby 76561199219667703a home thats kind of based on teardowns first level.55 downloadsupdated 11 mo ago
- little world with sleeping volcanoby 7656119963608928254 downloadsupdated 3 y 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.