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SpaceSim

SpaceSim

PC

SpaceSim: Astrophysical Simulation Software

Early Access

Release Date: December 15, 2025 Early Access

Simulation, Space, Educational, Indie Games, Singleplayer

A space simulator tool that allows us to simulate celestial collisions, accretion disks around black holes, or galaxies being created. SpaceSim doesn't run in real time, but it also doesn't require extensive knowledge and it's friendly towards unexperienced users.

9.4

Steam

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Ratings
[1:11] - Trailer #1 Videos: 1
Screenshot Images: 6
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An employee of Charles University in Prague at the Department of Astronomy, Pavel Sevecek, decided to develop a program for astrophysical simulations. The goal of the indie title SpaceSim - Astrophysical Simulation Software is to make advanced phenomena studied in astronomy and physics more understandable to a wider audience.

How does it work?

The tool is used to recreate phenomena described in scientific literature, such as the impact that led to the formation of the Moon, the creation of Saturn's ring system, or the kinetic effects caused by the DART impactor. By examining initial conditions, we test hypothetical scenarios like the collision of two planets made of matter and antimatter.

The program includes many types of objects: planets, stars, asteroids, disks, clouds, or even galaxies. Each object has adjustable parameters that allow changing its geometry, materials, appearance, and behavior. The surface textures of planets and asteroids can be further customized using procedural generation or by uploading our own images. Custom objects are created using the Lua scripting language.

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Platforms:

PC Windows

PC Windows

Developer: Pavel Ševeček

Publisher: Pavel Ševeček

Age restrictions: none

Features

System Requirements

System Requirements for SpaceSim Video Game:

PC Windows

PC / Windows

Minimum System Requirements:
CPU SSE 4.1, 4 GB RAM, graphic card OpenGL 4.6, 500 MB HDD, Windows 10 64-bit.

Recommended System Requirements:
CPU SSE 4.1, 16 GB RAM, graphic card 4 GB, 10 GB HDD, Windows 10/11 64-bit.

Ratings

Game Ratings for SpaceSim Video Game.

94%

STEAM Score

All Reviews: Very Positive (125)

STEAM
User Reviews Summary generated by AI

The main pros of the game

  • Realism: Users frequently highlight the game's realistic simulations of celestial phenomena, such as collisions and galaxy formations.
  • Graphics: The graphical quality is praised, with many users finding the visuals impressive and engaging.
  • User-Friendly Interface: The software is noted for its modern and usable GUI, making astrophysical simulations accessible to a broader audience.
  • Workshop Support: Users appreciate the community and workshop support, allowing for sharing and enhancing simulations.
  • Educational Value: Many users find it useful for learning about space and astrophysics, making it a good educational tool.

The main cons of the game

  • Performance Requirements: Users report that the software demands high processing power, leading to difficulties in running simulations smoothly, especially on mid-range computers.
  • Limited Features: Some users feel the software is currently limited in terms of available pre-designed objects and simulation controls, which may hinder creativity.
  • Simulation Speed Control: There are requests for better control over the speed of simulations, as some users find the default speed settings unsatisfactory.

The features or elements that are missing from the game according to users

  • More Objects: Users desire a wider array of pre-designed celestial objects and the ability to add new objects during simulations.
  • Speed System: A system to control the timing and speed of simulations more effectively is requested.
  • Extended Tutorials: Some users hope for more extensive tutorials to help new users navigate the software better.
  • Additional Celestial Bodies: There are specific requests for the inclusion of more moons, planets, and other celestial bodies to enhance simulation options.

Summary

  • Overall, while the software is highly praised for its realism and educational potential, users are eager for improvements in performance, features, and usability.

Summary generated on: