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SpaceSim - Astrophysical Simulation Software Free Download (Build 21275741)

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Game Details

Release Name: SpaceSim - Astrophysical Simulation Software

Game Version: Build 21275741

Release Date: 15 Dec, 2025

Publisher: Pavel Ševeček

Developer: Pavel Ševeček

Based On: CSF & Goldberg

SpaceSim - Astrophysical Simulation Software Direct Download - Game Review

The goal of the project is to "de-mystify" scientific simulations and make them accessible to the general public. SpaceSim uses the same approach (albeit simplified and at lower resolution) as the research simulations typically run on supercomputers, but it can run on your desktop PC or laptop, comes with an intuitive user interface, and requires no extensive knowledge of mathematics, physics, or programming.

You can recreate some of the well-known simulations from the scientific literature, such as the Moon-forming impact, the formation of the ring system of Saturn, or the DART kinetic impactor. Or you can simply explore various initial conditions, both grounded and realistic, but also hypothetical "what-if" scenarios, such as the collision of two planets made of matter and anti-matter.

Each deformable object in the simulation is discretized into particles that interact with each other through collisions (by solving the Navier-Stokes equations) and gravitational attraction. Objects can also be rigid (non-deformable) - they retain their shape, which simplifies collisions between objects and optimizes simulation speed.

The particle-based solver is useful for simulating a number of astrophysical events, such as the formation of planets from protoplanetary disks or the mutual interaction of galaxies.

The application has a number of object types - planets, stars, asteroids, disks, clouds, galaxies, and more. Each object has adjustable parameters that allow you to change its geometry, materials, appearance, and simulation behavior. The surface textures of planets and asteroids can be further tailored using procedural generation or by uploading custom images.

Or, if you need even more control, create your own objects using the Lua scripting language.

  • CPU and GPU simulation solver

  • Optimized gravity simulation using the Barnes-Hut algorithm

  • Simulation history - store the entire simulation and replay it later

  • Two render engines - Real-time or Raymarcher

  • Customizable camera paths with object tracking

  • Lua scripting for custom objects and simulation systems

  • Built-in video recording (H.264 codec) and various export options (Alembic, OpenVDB)


Game Screenshots

screenshot screenshot screenshot screenshot


Game Trailer


System Requirements

Minimum Requirements

Recommended Requirements

OS

Windows 10

Windows 10 or 11

Processor

CPU supporting SSE 4.1

CPU supporting SSE 4.1

Memory

4 GB RAM

16 GB RAM

Graphics

GPU supporting OpenGL 4.6

GPU supporting OpenGL 4.6 with 4 GB VRAM

DirectX

-

-

Storage

500 MB available space

10 GB available space


Installation Guide

  1. No Installation Needed: The game is pre-installed. Just download and extract.

  2. Extract: Right-click the .zip or .rar file and select "Extract Here" or "Extract to folder".

  3. Run: Find SpaceSim.exe inside the folder and run it.

Game Data & Settings

  • Change Language: Edit the file located at steam_settings/Configs.user.ini

  • Save Data Location: %USERPROFILE%/AppData/Local/spacesim/

Important Notes

🔥DOWNLOAD AREA🔥

🔹88 MB🔹

Select the server you want to download with ZeiLink.

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