SpaceSim - Astrophysical Simulation Software Steam news

• Latest observed players29 · 25 September 2026 - 19:57:52 UTC
• SteamPulse tracked peak69
• Units sold (VGI)No data available
• Revenue (VGI)No data available
• Review score95% positive
• Total reviews225
• Release dateDec 15, 2025
• DeveloperPavel Ševeček
• PublisherPavel Ševeček

Genres: Simulation, Education, Video Production, Early Access

Company pages: Developer: Pavel ŠevečekPublisher: Pavel Ševeček

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SpaceSim - Astrophysical Simulation Software Steam news

SpaceSim - Astrophysical Simulation Software news collects recent Steam feed items, update posts, and announcements that SteamPulse can associate with this app.

Latest Steam announcements

• Patch 0.11.260809 - 9 August 2026

  A hotfix containing several important fixes:Fixed continuing simulation from a save file containing the simulation state.Reduced the number of allocated textures, improving the overall VRAM usage of the application.Fixed a crash when trying to follow an empty camera path.Fixed serialization/deserialization of a simulation state containing stress matrices (when shear strength is enabled).Fixed crashes when re-adding planetary layers.Fixed certain simulations with small objects (asteroids) stopping with an error message.Thank you to everyone who reported issues. If you find more bugs or regressions, please let me know.

• Update 0.11 - Changelog - 8 August 2026

  The update adds new tools, simulation options and camera types, extends the tutorials, improves the GPU solver, and introduces a brand new type of simulation - stellar evolution. Stellar evolution simulationA basic evolution of stars has been added in the previous update, implemented as a simple parametric relation that changes the stellar radius and surface temperature based on its initial mass and age. This update adds a new detailed solver of stellar evolution. The solver can be enabled by turning on ‘Solve stellar structure’ in the simulation settings. When using this solver, SpaceSim solves the equations of stellar structure and calculates radial profiles of pressure, density, temperature, nuclear fusion rate, etc. The state of the star changes over time, driven by changes in composition - fusion of hydrogen into helium due to the proton-proton and CNO cycles. You can use the detai…

• Patch 0.10.260320 - 20 March 2026

  Added an alternative texturing option to particles (assigning a single color to each particle instead of smoothly mapping the texture to the surface).Added velocity multiplier to the ring object.Rings can now be properly added using Lua scripts. To set the parent object, assign the name of the object to the field parent.Fixed black holes created during simulation having color and atmosphere when using the real-time renderer.Fixed a crash caused by tracking a disabled object.Fixed the units of fusion power (color mode).Fixed issues with loading .gltf files without textures.Fixed rare crashes caused by auto-exposure.Fixed particles rendered using color modes not respecting the clip state during the simulation in some cases.Fixed inconsistent intensities of emitted light.Fixed planar texture mapping being horizontally flipped for non-deformable objects.

• Update 0.10 - Changelog - 11 March 2026

  Improved black holes for the real-time rendererWhen using the real-time renderer, black holes will now distort the background in a realistic way. Instead of the semi-transparent shell used previously, the effect is more similar to the raymarched appearance. Furthermore, rigid (non-deformable) objects are also distorted by black holes and they themselves can bend light if they are dense enough. Previously, this was only possible with the raymarcher.See through the wormholesWormholes now act as a light portal when rendering with the raymarcher, allowing us to see objects located behind the wormhole destination. Furthermore, it’s now also possible to connect a wormhole to another wormhole, creating a two-way connection between two points in space. Finally, wormholes can transport rigid objects, which wasn’t possible before. Planets located behind the white hole can be seen through the worm…

• Patch 0.9.260108 - 8 January 2026

  Fixed changes of camera field of view during recordingFixed parameter updates of Lua objects and Lua simulation systemsFixed saving supernova colors and opacities to history when using the 'full' history mode.

• Update 0.9 - Changelog - 3 January 2026

  This changelog is mostly for people who have been following the development for longer time. It contains all added features and changes compared to the previous version that was available to Patreon subscribers.Steam integrationSteam manages installation, provides automatic updates and allows users to easily switch between versions. Finally, no more .msi installers blocked by Windows Defender every time you run it!Besides making downloads and updates much easier, Steam also gives us a way to share objects and simulations with other people using the Workshop. If you're missing a planet, a moon or another object, check out the workshop - maybe someone already made it. If so, you can simply subscribe to the item and it will show up next time you start the application.There are currently two types of workshop items:Objects are added into the list of objects you can add to your simulation, n…

Patch notes and updates