Written by Wyso Sirius
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.
After being abducted by a maniacal cyberbot, you must fight your way through a hundred levels of nebulous arenas in your spacecraft to escape. A mouse-controlled, 1366 x 768 indie-game adventure. Prepare to face turrets, mines, asteroids and mechanical krabs intent on thwarting your escape!
Space, the not-so-final frontier. A great place to get away from everything and everyone. That is, until a sadistic, maniacal artificial intelligence, named Daglos, chances upon you and abducts you for it's pleasure. Forced into the arenas filled with danger, you have to fight your way through a hundred levels to escape. 
In this mouse-driven 2D game, you will control your ship, moving it around an arena that mimics the non-gravity feel of space as you fight and outwit several types of enemies and obstacles. Free-floating asteroids and gun-turrets are just two examples of what you will face. Shoot lasers at them or outmaneuver them. Sometimes, though, you'll have to figure out puzzles that Daglos places before you. All is not always what they seem.

You'll need to complete a hundred levels before you can escape from Daglos. A fun, arcade-style game that balances retro action with not-too-challenging puzzles. How will you fare? You'll need your wits about you as each time a new enemy is introduced, Daglos gives only a minimal description of it and you'll have to figure out how to deal with it using your own ingenuity!
Will you make it through all hundred levels and escape Daglos? Or will you give up and cry in the emptiness of space?