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
- T72 Penetration Simulationby moritz123454.2k downloadsupdated 2 y ago
- water machineby kudinov.pavel3.0k downloadsupdated 5 y ago
- Human Anatomy(With Legs)by 76561198949634043A Cool little Human I made, based off a reference image. Feel free to use this guy, just credit me if you are going to do so. Also, turning off platform mode on cosmos is fine, it might make him rotate a little bit though. NOW WITH LEGS!!! (The rubber strips on the legs make sure that they don't...2.1k downloadsupdated 20 mo ago
- Bunker City Planet 2 (200k) v0_7_6_1by CloudZeroThe first planet was a decoy! The residents of Bunker City Planet know that you’re coming for them and have begun mining rare materials and researching advanced technology to take over the universe! Your mission is to stop the evil Bunker City Empire before it's too late! -Bunkers -City -Planet -...2.0k downloadsupdated 3 y ago
- Bunker City Planet (200k) v0_7_2_1by CloudZeroIN A WORLD made of atoms, one city, with a bunker underneath, is attempting to survive Space Simulation Toolkit. What will your test be? (Que awesome electric guitar, fade to black)2.0k downloadsupdated 3 y ago
- P40by O³Lightning1.8k downloadsupdated 2 y ago
- T72 and Bradley made with AIby moritz123451.7k downloadsupdated 2 y ago
- Armor Penetration Simulationby trekko727NOTE: If you DO NOT see anything, zoom out and move the camera, when you find the round, armor and humanoid rig, then zoom in. Currently this level is VRAM expensive, meaning on the initial load takes 3.7GB, and loading again will increase 400-600MB of VRAM. This level is currently using 800K par...1.7k downloadsupdated 4 y ago
- Object 279by 76561199009952171An Russian, experimental, cold war tank designed to fight in post-apocalyptic terrain. Includes: 3 realistic Crew members 4 Premade shells This took some time, leave a good review if you want.1.4k downloadsupdated 13 mo ago
- moving continents v1by 76561199649769148if continents stop moving feel free to add more sand/stone to the core1.3k downloadsupdated 2 y ago
- Human Torsoby O³Lightninggood for ballistic testing.1.3k downloadsupdated 3 y ago
- Vooperian Flying Fortress V1by SpikeViper1.3k downloadsupdated 18 mo ago
- VK4502(Z)by 76561199009952171WW2 German Experimental rear turreted tank. 3 crew members (Driver, gunner, commander/loader) 4 shells to play around with. Feel free to make your own custom shells as well!1.1k downloadsupdated 10 mo ago
- 60 Elements [new version WIP]by Malice== NEW VERSION BEING WORKED ON! OVER 250 ELEMENTS == !! Check out my new 100k, 200k, or 300k versions if you can't run 400k particles !! Practically turning SST into Powder Toy, here's an updated version of "50+5 Custom Elements," improving on over 20 of the previous elements, and including 5 (ma...1.1k downloadsupdated 11 mo ago
- Strv-103-Aby 76561199009952171Tank based on the Swedish Strv-103. The sim includes 3 pre-made shells, 2 oblivious tankers, and a tank of course. I did not include the cannon to allow for a better simulation of the sloped armor, along with no tracks either.1.0k downloadsupdated 13 mo ago
- Better Planetby 76561199093827298Just a SST habitable planet. Enjoy destroying or improving the planet! Thanks :)1.0k downloadsupdated 23 mo ago
- Churchlilby O³Lightning981 downloadsupdated 23 mo ago
- JAGDTIGER (Drop a comment if you want me to do more of this)by 76561199772221331970 downloadsupdated 22 mo ago
- t90mby O³Lightning944 downloadsupdated 21 mo ago
- Planet start (400k)by OneArmDanTypical settings I use for creating planets. Includes: never-static stone and earth no drag default temperature of 0 C. very little air conductivity a gravity and sun point in the center tons of water a mix of stone and metal a couple orbiting bodies Enjoy! 100k version:938 downloadsupdated 5 y ago
- Realistic Tank Sim (Based on Maus)by 76561199009952171This Tank is Somewhat based on the Superheavy Maus. The sim includes gravity, realistic looking crew members, semi realistic looking modules, and a small, starter AP shell.930 downloadsupdated 19 mo ago
- Geology Convection Simby smallfern925 downloadsupdated 5 y ago
- iteratorby 76561199219667703this is an iterator superstructure from rain world, i know this has been done before in this game, but i wanted to make a really really big and more accurite one, my name is noah, enjoy!883 downloadsupdated 12 mo ago
- Earth (with moon)by 76561199480786886I made Earth in Space Simulation Toolkit! This took me about 9 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 LUNA TO EARTH! yea our moon is actually called luna. SPOILERS: -The next planet is an inner planet...880 downloadsupdated 3 y ago
- The Floating City Floop of Vooperiaby SpikeViper853 downloadsupdated 18 mo ago
- Infinite Fountain REMAKE (200K)by [Fr]Mr.Sim200K simulation. WARNING : Backward version v0.4.7.4 only, There is a bug in the latest version v0.5.0.0 This is a remake of my original Infinite Fountain. As I have progressed a lot, I wanted to start this project again, which allowed me to do great things on SST. My Original Infinite Fountain (...848 downloadsupdated 5 y ago
- smol tigerby O³Lightning838 downloadsupdated 2 y ago
- tectonic activity (WIP probably)by 76561198432886374(for 200k sims) This thing simulates plate tectonics, albeit really poorly. Aside from the obvious 2D limitation, it mostly fails to imitate such real-life effects as plates sinking. Which means I would love to see this refined, by me or by literally anyone else cuz I got no time :(808 downloadsupdated 4 y ago
- planetby 76561198415677754791 downloadsupdated 3 y ago
- Chicago for all to haveby 76561198990385018Size is 300K757 downloadsupdated 13 mo ago
- Realistic Tank Armor Simby 76561198406127068This sim has in it the result of many hours of work fine tuning and more importantly, screwing around, to bring you the absolute most realistic ballistic physics simulation I can muster. I sincerely hope that you can appreciate just how cool it is and the versatility that it has compared to just...752 downloadsupdated 2 y ago
- Mars satelite knowlage-M2 (400K)by 76561199287167095New Martian Satelite with newest TECHNOLOGY!!! -Thermal Reactor -Unfoldable Solar Panels -RCS oil fueled -Antena -Hydrogen bateries695 downloadsupdated 2 y ago
- Oil Powered Water Steam Wheelby OneArmDanA spinning turbine powered by the rising of steam and falling of water! Almost all the materials have been greatly altered from their original state. Make sure to keep the fuel above the fill line to maintain oil pressure!635 downloadsupdated 4 y ago
- SST Deluxe: Small Townby 76561199239312439One problem I've always had with SST is the base settings. You know how particles moving at high speeds just phase through walls? It turns out that it's such an easy fix! And so many other settings just aren't set to the right values to give you the best experience. So go ahead and try it, and te...631 downloadsupdated 19 mo ago
- Planetary Geology Simby smallfernA 'sequel' to the geology convection sim I made last year. While many things aren't to scale, it simulates faulting, tectonic plate formation and drift, mantle convection, the rock cycle ( Igneous, Sedimentary and Metamorphic ) and eruptions. Hope y'all enjoy it, and kudos to the developer of SST!607 downloadsupdated 4 y ago
- i HAVE NO IDEA HOW THIS HAPPENEDby 76561198328440019607 downloadsupdated 5 y ago
- Human Ragdollby 76561199001913608603 downloadsupdated 3 y ago
- vapor machineby kudinov.pavel599 downloadsupdated 5 y ago
- freshly forming system likely 3-5 planets and 1 starby Ezurth597 downloadsupdated 4 y ago
- Plane-Inline5-BallisticTestby O³LightningA Inline 5 (no function) with 3 bullets to throw at. (its a Ballistic dummy) has battery(cube of water), oil system, cooling system, a prop and even sparkplugs593 downloadsupdated 2 y ago
- The Living Flesh from SpaceGross flesh that spreads and adapts, brought to the planet on an asteroid. It can dig through stone, infect water supplies, and use plant matter to create strange independent organisms that spread it across long distances. Most of it's features can be observed on the planet that already exists in...577 downloadsupdated 2 mo ago
- ARL-44 French Heavy tankby 76561199009952171The ww2 ARL-44 with the newer turret. Not entirely historically accurate. Only 2 crewmembers this time couldn't fit a 3rd. Bunch of new shells with the new custom materials. The APHE filler isn't perfect but it kinda works. This was my first time messing with custom stuff so it ain't perfect. She...576 downloadsupdated 6 mo ago
- WormHole 2point0by 76561199588694123534 downloadsupdated 18 mo ago
- VSA-O3 (Vooperian Space Agency Orbiter 3)by SpikeViper530 downloadsupdated 11 mo ago
- Large Mountainby 76561199046941783520 downloadsupdated 4 y ago
- 60 Elements (300k Edition)by MalicePractically turning SST into Powder Toy, here's a 300k 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.489 downloadsupdated 9 mo ago
- help me i thingk i made a nutron star or a super nover i was just experermenting with the new star thingby 76561199562423041474 downloadsupdated 2 y ago
- Kidnappers and Victims (Multicellulars Protobiome Life)by 76561198832171619A realistic Protobiome simulation with tweaked physics with intelligent life and Multicellulars, these include Kidnappers and Prey, and some others. Prey/Victims: Multicellulars that feast on plant clouds and stone to build their "skeleton", which is a structure for integrity stored in their cent...470 downloadsupdated 16 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.