Written by Pavel Ševeček
Table of Contents:
1. Screenshots
2. Installing on Windows Pc
3. Installing on Linux
4. System Requirements
5. Game features
6. Reviews
This guide describes how to use Steam Proton to play and run Windows games on your Linux computer. Some games may not work or may break because Steam Proton is still at a very early stage.
1. Activating Steam Proton for Linux:
Proton is integrated into the Steam Client with "Steam Play." To activate proton, go into your steam client and click on Steam in the upper right corner. Then click on settings to open a new window. From here, click on the Steam Play button at the bottom of the panel. Click "Enable Steam Play for Supported Titles."
Alternatively: Go to Steam > Settings > Steam Play and turn on the "Enable Steam Play for Supported Titles" option.
Valve has tested and fixed some Steam titles and you will now be able to play most of them. However, if you want to go further and play titles that even Valve hasn't tested, toggle the "Enable Steam Play for all titles" option.
2. Choose a version
You should use the Steam Proton version recommended by Steam: 3.7-8. This is the most stable version of Steam Proton at the moment.
3. Restart your Steam
After you have successfully activated Steam Proton, click "OK" and Steam will ask you to restart it for the changes to take effect. Restart it. Your computer will now play all of steam's whitelisted games seamlessly.
4. Launch Stardew Valley on Linux:
Before you can use Steam Proton, you must first download the Stardew Valley Windows game from Steam. When you download Stardew Valley for the first time, you will notice that the download size is slightly larger than the size of the game.
This happens because Steam will download your chosen Steam Proton version with this game as well. After the download is complete, simply click the "Play" button.
Simulation & rendering software that uses Smoothed Particle Hydrodynamics (SPH) to simulate collisions of celestial bodies, accretion disks around black holes, or formation of galaxies in the early universe.
SpaceSim is a particle-based simulation and rendering software, primarily focused on astrophysical applications.
Important!
This is a non-realtime simulator. Although low-resolution simulations are fast enough to be real-time, simulations with millions of particles can take several hours to finish.
This is not a game. It does not contain any game mechanics, progression, sandbox elements, etc. Please do not expect any gaming experience.
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.

The renderer includes the effect of gravitational lensing, bending the light rays that pass close to a black hole and creating realistic renderings of warped accretion disks, duplicated images of objects behind black holes (including other black holes) or Einstein rings of galaxies.
SpaceSim provides additional insights into the simulation in a number of ways. It can color particles based on values of a specific quantity (velocity, pressure, material, ...), show the Roche limit indicating where satellites can have stable orbits, or draw the potential field to see the gravity wells around celestial bodies.
Key features:
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)