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
- RingV1 / dragon rocket (400K)by 76561199287167095for rocket to be working as fast as its should you need to click (Scenes-cosmos) and change movek to 0.00104 and use shift tool to make a hole in thruster (FULL VIDEO HOW I DID IT IS ON MY CHANEL 8kas) Video is X2 speed237 downloadsupdated 2 y ago
- 60 Elements (100k Edition)by MalicePractically turning SST into Powder Toy, here's a 100k 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.232 downloadsupdated 9 mo ago
- Pz_II Cby O³Lightning231 downloadsupdated 20 mo ago
- Reactor Substationby 76561198333920823228 downloadsupdated 5 y ago
- The Better T72by 76561199448274552228 downloadsupdated 22 mo ago
- Binary Star Systemby func_kenobiThese two objects were in a stable orbit for a while. Thought I should share it. By the way this all formed without moving any objects. Almost no human interaction was involved.223 downloadsupdated 4 y ago
- Oil Depot Planetby 76561199186333629223 downloadsupdated 15 mo ago
- sorta APFSDSby 76561198432886374222 downloadsupdated 5 y ago
- BacteriaV11 nodes, 48 materials, ~400 reactions. To germinate one, either add a Spore and surround it with sugar/plants/dirt, or just put ActivatedSpore. Bacteria feed on sugar or plants (converting them to sugar), so they can't get energy from sun directly unless they live near plants (so you may need to...221 downloadsupdated 2 mo ago
- iterator Corrosionby 76561199150265954The original iterator is made by noah. I just added the mechanics of rust. Published with the author's permission216 downloadsupdated 10 mo ago
- Challenger Eby 76561199467988147215 downloadsupdated 14 mo ago
- Iterator [Rainworld]by WOWIterator from rainworld thats about it :P water goes in hot steam comes out then comes the rain and the Cycle continues VERSION 2!!!214 downloadsupdated 3 y ago
- Upgraded Vooperian FlyingFort [with bullets , missle and colourby 76561199448274552Credits to spike viper also E213 downloadsupdated 18 mo ago
- Habitable Planet 2by Blox2007 (the Last Fluorican)212 downloadsupdated 3 y ago
- Primordial soupby 76561198816241457211 downloadsupdated 3 y ago
- TEKTONIK MOVEING PLANTby 76561199810113627207 downloadsupdated 18 mo ago
- sau40by O³Lightning204 downloadsupdated 21 mo ago
- Grass Covered Hillsby 76561198415677754201 downloadsupdated 3 y ago
- PEN TEST t-72 (Remix)by 76561199471393675CREDITS: moritz12345 This is a t-72 (as u can see) with enchanced composed armor and ERA which i added on the original made by moritz12345, also there are more realistic bullets (u can find them in real life and ww2) there are about 20 diferent shells from balls to fragmentation to discarding sab...201 downloadsupdated 12 mo ago
- Human and materials V12by 76561198854173696Realistic human and around 95 new elements I messed around with Human can regenerate if you add water to the blood!!! Have fun i guess :P --- IMPORTANT: USE GABE'S UI MOD (LINK IN SST'S DISCORD SERVER ---201 downloadsupdated 8 mo ago
- Giant Impact Hypothesisby Blox2007 (the Last Fluorican)requires adjusting the position of earth to match the actual simulations200 downloadsupdated 2 y ago
- A7Vby O³Lightning200 downloadsupdated 19 mo ago
- space ship (400K)by 76561199287167095Space ship have plenty of systems like: - air tank - water tank - fuel tank - thermal reactor - hydrogen battery199 downloadsupdated 23 mo ago
- castalby 76561199219667703an abandend castal with edited matereal propertys for better destruction, my name is noah, enjoy!198 downloadsupdated 12 mo ago
- QuilezSrcurity-like-baseby 76561199219667703its kinda like teardown.195 downloadsupdated 6 mo ago
- First ALU in Space Simulation Toolkitby 76561199073199081This is an 8-Bit ALU that can compute addition and subtraction, as well as logic operations like AND, OR, NOT, and XOR. the control panel has 3 switches 000=Addition 100=AND 010=OR 110=Subtraction 001=XOR 101=NOT 011=Unused 111=Unused194 downloadsupdated 8 mo ago
- Planetby 76561199538558302190 downloadsupdated 17 mo ago
- better-taj-mahalby 76561199219667703this is an improved version of my old taj mahal, my name is Noah, enjoy!190 downloadsupdated 18 mo ago
- Convection Tectonic Plates Simulationby 76561199133669584A *working* version of Grox24's "tectonic activity (WIP probably)". He said he wanted to see it refined "Which means I would love to see this refined, by me or by literally anyone else cuz I got no time :(". So here it is. Hope yall enjoy (200K sim)189 downloadsupdated 3 y ago
- VT4A1by 76561199467988147189 downloadsupdated 14 mo ago
- Projectiles9 projectiles183 downloadsupdated 2 mo ago
- rocket engine inspiered by spike vipers oneby 76561199120189172also watch the vid. to lauch you have to use the layer tool its the small arrow that points up in the action menu for those who dont know then pause and heat up the fuel in side the rocket and also disconet the suports182 downloadsupdated 12 mo ago
- Softbody Among Usby 76561198333920823179 downloadsupdated 5 y ago
- crater planetby Blox2007 (the Last Fluorican)178 downloadsupdated 22 mo ago
- big unstable lineby Blox2007 (the Last Fluorican)177 downloadsupdated 3 y ago
- Russian Comp Armorby 76561199016977184Not perfect but still good. I have another more complete version but i dont feel like uploading. anyways theres a few shells you can try. The shells it has are my best take on the M829A2 from the M1A2 SEP V2 and a few apds and apcbc. Credits to O³Lightning for the settings. i used his p40 for the...176 downloadsupdated 18 mo ago
- Iterator V2by WOWVersion 2 is Larger and more accurate to in game appearances (rainworld)175 downloadsupdated 3 y ago
- Planet Start (100k)by OneArmDanTypical settings I use for creating planets. This time, with a lower sim size! The smaller sim size makes it difficult to have room for orbits, but it's possible. Includes: never-static stone and earth no drag default temperature of 0 C. very little air conductivity a gravity and sun point in the...171 downloadsupdated 4 y ago
- atomic view of a unstable neutron starby Blox2007 (the Last Fluorican)169 downloadsupdated 3 y ago
- Particle Hotelby 76561198333920823167 downloadsupdated 5 y ago
- Galaxyby flopp300k sim of a bunch of atoms. The atoms can attract eachother.166 downloadsupdated 5 y ago
- The Living Flesh From Space AsteroidThe asteroid carrying the living flesh from space as a convenient item. Turning a planet into a fleshy hellscape has never been easier! Get your own the living flesh from space today for the affordable price of nothing. This ought to appease the masses. Original and description here166 downloadsupdated 2 mo ago
- Planetary Formation Simulationby Blox2007 (the Last Fluorican)165 downloadsupdated 23 mo ago
- M1A2 SEP ABRAMSby 76561199467988147163 downloadsupdated 14 mo ago
- A doomed planetby 76561199408182936LastMessage-200000 years ago: "Errrrrrrrrrrrrrrrrrrrrrrrrrrror 592: Sleep pod temperature controller damaged. Evacuate sleep pod particippdeen&ts immmmediantly or risk meltdown."161 downloadsupdated 2 y ago
- T-90M(Era changed and metal mass reduced plus comos changeby 76561199467988147161 downloadsupdated 14 mo ago
- The Hiveby 76561198333920823160 downloadsupdated 5 y ago
- Naturally formed terrain 2by 76561198380243060Terrain that was formed by throwing stuff around and waiting. Cracks were the result of ground exploding for some reason. Can be very laggy.156 downloadsupdated 5 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.