Steam
Space Simulation Toolkit
Also known as Space Simulation Toolkit, space simulation toolkit, 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.
Last update
4 Aug 2026
Players now
9
Latest update
Update history
Browse past updates and patch notes for this game.
12 updates
August 2026
- v0.10.0.9 - FPS Increase, Crash FixesFPS Increase (3-5%) - New Collding Grid 3 x Row Scan schema instead of 3x3 Cells Scan - Crash Fixes (core based links refs fixes)
July 2026
- v0.10.0.8 - FPS INCREASE 10%, STAR SCENE LAG FIXED
- v0.10.0.5 - FPS dropdown bug fixedLink 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).
June 2026
- 🍀🏁🎉v0.10.0.3 - ancient "image.node" crash probably fixedimage.node module not found - crash probably fixed without Windows reinstall camera follow bug - fixed again
- v0.10.0.0 - 6 YEARS OF EARLY ACCESS6 YEARS OF EARLY ACCESS! • New Biome sim — Planet sim + DNA (but 1/2 size max) Items: EDITABLE JSON presets at: GAMEDIR/items Items/DNA: Auto growth structures Items/Hexmap: Chassis & Icebreaker with key bindings Load:…
March 2026
- SST v0.9.4.2 - Undo, Recovery Mode, Active tools iconsUndo (Ctrl+Z) - Recovery mode on crash - Active icons on tools menu - one step only Undo in first version - 1/2 of GPU memory reserved for Undo - red mark for too big savefiles on Load
February 2026
- v0.9.3.9 - AMD/OpenCL fixesOpenCL UI inspect crash fixed, now UI more stable on AMD GCN arch compatibility restored (RX 500, Vega), was broken last month RDNA arch fixed (RX 6000,7000,9000) still only 1/3 of normal FPS on RDNA (RX 6000,7000,9000)…
January 2026
- v0.9.3.3 - AMD RADEON FIXrx 6600 tested rx 580 tested
December 2025
- v0.9.3.1 - Line tool, Menu - 🎄🔔 Merry Christmas 🔔🎄Line tool Shift+Line to erase Bigger load/save menu Changelog More hints Crash/UI fixes
- v0.9.1.0 - Custom Reactionscustom material reactions currently only transformation is possible so only A+B=C+D formula temp, pressure, electro, aqua, ra as conditions and as results of reactions list of reactions in material props diffusion effec…
November 2025
- v0.9.0.0 - Custom materials editorright click to open material editor clone material button editable material title, icon, tag, hint
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