Space Simulation Toolkit - DEMO
Playing now
14+2 vs. yesterday
78%of peak
All-time peak
186 Sep 2026
Playing now
14+2 vs. yesterday
All-time peak
186 Sep 2026
| Published | Kind | Announcement | Build |
|---|---|---|---|
| Game update | v0.10.0.9 - 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) | — | |
| Major update | v0.10.0.8 - FPS INCREASE 10%, STAR SCENE LAG FIXED | — | |
| Game update | v0.10.0.5 - 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). | — | |
| Game update | 🍀🏁🎉v0.10.0.3 - ancient "image.node" crash probably fixed image.node module not found - crash probably fixed without Windows reinstall · camera follow bug - fixed again | — | |
| Major update | v0.10.0.0 - 6 YEARS OF EARLY ACCESS 6 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: able to load Planet saves as Biome saves • Selection: merged-cluster contour outline • View: adjustable link thickness and opacity • Camera follow fix • CLI: --sim / --sc… | 23441596 | |
| Game update | SST v0.9.4.2 - Undo, Recovery Mode, Active tools icons - Undo (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 | — | |
| Game update | v0.9.3.9 - AMD/OpenCL fixes OpenCL 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) · so use smaller scenes starting 25K on newer AMD cards · also better nVidia performance in OpenCL mode | — | |
| Major update | v0.9.3.3 - AMD RADEON FIX rx 6600 tested · rx 580 tested | — | |
| Major update | 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 | — | |
| Major update | v0.9.1.0 - Custom Reactions custom 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 effect based on material swaps | — | |
| Major update | v0.9.0.0 - Custom materials editor right click to open material editor · clone material button · editable material title, icon, tag, hint | 20718273 | |
| Major update | v0.8.8.8 - Asteroid² "RTX ON": Day, Night, Moonlight light view modes · 3 new scenes: Planet², Asteroid², Moonlight · Asteroid² scene on 800K particles makes impact exactly as on video · pressure fusion core instead of Sun object · more plants and water, less lava pools · new main menu pictures | — | |
| Major update | v0.8.5.2 - RTX ON - pressure fusion by default (instead of Sun for planet cores) - Rays.night by default - more plants, less lava pools (Planet*, Volcano, Chassis, Icebreaker scenes - RTX ON) | — | |
| Major update | v0.8.5.0 - Night Night scene · Scene.Ray.night · Scene.Ray.backlight | — | |
| Major update | v0.8.4.0 - Chassis. Keyboard control Chassis scene · New rotor hard linked material rotaring layers relatively to each other · Easy key bindings · Chassis control (LEFT,RIGHT) · Smooth speed control (Z,X) · Laser turret (UP,DOWN,TAB) · Bind keys for Icebreaker control video tutorial · Sticky materials now only stick to each other (to prevent dirt from sticking to the wheels) · New temperature spectrum colors | 20067512 | |
| Major update | v0.8.3.0 - Planets | — | |
| Major update | v0.8.2.0 - 5 YEARS EARLY ACCESS Protobiome 2.5 Alpha (solid lifeforms, herbivores/carnivores, DNA inspect) · UI upgrade (more icons, foldable tags, popup hints with descriptions) | 18756416 | |
| Game update | v0.8.1.1 - make all scene materials stronger in click experimental Scene/Cosmos.tiesteps_lpow_x option multiplies both link integration frames per frame (Cosmos.tiesteps) and all material links strength on scene (Material.*.lpow,ldamp,sangle) but requires more GPU computation per frame (lower FPS and higher GPU calculations) may be usefull for bridges, dambs etc. note: ice, earth and other "soft" materials also becomes x times stronger so, this op… | 18119664 | |
| Game update | v0.8.1.0 - vsync, fps settings - vsync - fps settings - color picker update - ui minor updates - main menu user settings savefile | 16976861 | |
| Game update | SST v0.8.0.6 - node_gravity checkbox crash fix - node_gravity checkbox crash fix | 16976368 | |
| Game update | SST v0.8.0.4 - Icons update (again) - Icons update, UI fixes | 16906489 | |
| Game update | v0.8.0.3 - Icons update - some UI system improvements - icons updated | — | |
| Game update | v0.8.0.2 - Cosmos.fire_checkdist for SpikeVIper - Cosmos.fire_checkdist for SpikeVIper | 16868099 | |
| Game update | v0.8.0.1 - Drag panel, slider, scroll fixes - drag panel fix - slider fix - scroll in book and load/save fix | 16867572 | |
| Game update | v0.8.0.0 - Windows 11 support - infinite black screen fix - Windows 11 support - ASAP fix, several new UI bugs will be fixed later: - drag&drop UI (Gravity,Magnet creation by click) - scrolls (drag right side of the load/save menu for scroll) - some layout issues | 16837720 | |
| Major update | SST v0.7.7.7 - The Star - new "Star" scene - Pressure based fusion (Ray.fusion) - Heat based light emission (Ray.temit) - Big gravity for the planet sim (multigrid) - Solar wind (Sun.emit_mass) - Camera follow - Ray panel - 4K particles overlap fix - Pressure view - Draw.link_materials (link or not different materials) | — | |
| Major update | v0.7.7.1 - Icebreaker scene - Layers, Copy/Paste, Machines draw - new pre-made machine "Icebreaker" scene - multi layer machines editor - CTRL+V for instant paste of the current selection copy at mouse position - Draw: draw by grid, pipes, smooth lines - tools menu highlights * Also, 5 June 2024 - 4 years of Early Access Happy Summer 2024 | 14591161 |
Announcements are the developer’s own posts to the game’s Steam news feed: updates and their patch notes, in-game events, releases and sales. The important ones are marked on the players chart.