- Indie
- Simulation
- Early Access
Game
Space Simulation Toolkit
Physics sandbox game that uses a graphics card as a supercomputer. Change the laws of physics, design mechanisms, create A-Life worlds and inhabit them with living beings, experiment with evolution and AI.
Physics sandbox game that uses a graphics card as a supercomputer. Change the laws of physics, design mechanisms, create A-Life worlds and inhabit them with living beings, experiment with evolution and AI.
About Space Simulation Toolkit
- Released
- June 2020
- Platforms
- PC (Microsoft Windows)
Where to get it
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
From the developers
Official announcements, newest first. Posted on Steam.
- Community Announcementsv0.10.2.0 - Select Box, Group Editor, Reactions Graph• Selection Box / Ruler • Inspect: one card for the whole selection — counts, sums, averages, ranges• Group edit: values, sliders, material — applied to every selected object• Material: dropdown picker in the card• Histograms per property: click a bar = narrow the group, Shift+click = exclude• Layer as enum• keybinds reassignable for the group• Flags show honest shares; numbers in K/M/G/T• Ctrl...
- Community Announcementsv0.10.1.0 - Drawing Tools update
- Community Announcementsv0.10.0.9 - FPS Increase, Crash Fixes- FPS Increase (3-5%) - New Collding Grid 3 x Row Scan schema instead of 3x3 Cells Scan - Crash Fixes (core based links refs fixes)
- Community Announcementsv0.10.0.8 - FPS INCREASE 10%, STAR SCENE LAG FIXED
- Community Announcementsv0.10.0.5 - FPS dropdown bug fixed- Link rendering has been reverted to the old algorithm - This should fix the FPS drop bug a few seconds after starting the game - (the bug has been present since v0.10.0.0, i.e., since early summer).
- Community Announcements🍀🏁🎉v0.10.0.3 - ancient "image.node" crash probably fixedimage.node module not found - crash probably fixed without Windows reinstallcamera follow bug - fixed again
- Mods indexed
- 500
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
of 648 on Steam Workshop
Most downloaded
Measured from the source's own counts, summed across every release.
- T72 Penetration Simulation3.8k downloads
- water machine2.8k downloads
- Bunker City Planet (200k) v0_7_2_1IN 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)1.9k downloads
- Human Anatomy(With Legs)A 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...1.8k downloads
- Bunker City Planet 2 (200k) v0_7_6_1The 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 -...1.8k downloads
- P401.7k downloads
- T72 and Bradley made with AI1.5k downloads
- Armor Penetration SimulationNOTE: 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...1.5k downloads
- Object 279An 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.1.2k downloads
- Human Torsogood for ballistic testing.1.1k downloads
- Vooperian Flying Fortress V11.1k downloads
- moving continents v1if continents stop moving feel free to add more sand/stone to the core1.1k downloads
- Churchlil931 downloads
- 60 Elements [new version WIP]== 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...927 downloads
- JAGDTIGER (Drop a comment if you want me to do more of this)919 downloads
- Geology Convection Sim915 downloads
- Planet start (400k)Typical 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:912 downloads
- Strv-103-ATank 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.892 downloads
- Better PlanetJust a SST habitable planet. Enjoy destroying or improving the planet! Thanks :)857 downloads
- Earth (with moon)I 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...825 downloads
- t90m807 downloads
- tectonic activity (WIP probably)(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 :(801 downloads
- The Floating City Floop of Vooperia771 downloads
- planet771 downloads
Browse all 500 Space Simulation Toolkit mods Sortable by downloads, rating and date.
More early access games see all
Why Space Simulation Toolkit mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host Space Simulation Toolkit mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.