How to Download CYPEST Underground

1. Click on the CYPEST Underground download button below.
2. Choose "Install" to install the game on the windows steam client.
3. Follow the on-screen prompts
4. Let it download the Full Version.
5. Once a game is downloaded, use the Windows Steam Client to play the game.

=== Download Game ====

Download for pc →

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.

Windows Pc Requirements

Minimum:

• OS: Windows 7
  
• Processor: 1.6 GHz Dual-Core
  
• Memory: 2 GB RAM
  
• Graphics: Geforce GTX 560
  
• Storage: 150 MB available space
  
• Additional Notes: OpenGL 3.2

Recommended:

• OS: Windows 10
  
• Processor: 2.4 GHz Quad-Core
  
• Memory: 4 GB RAM
  
• Graphics: Geforce GTX 670M
  
• Storage: 150 MB available space
  
• Additional Notes: OpenGL 3.2

Linux Requirements

No minimum requirements!!
No maximum requirements!!

Mac Requirements

No minimum requirements!!
No maximum requirements!!

As a computer virus you are infiltrating various servers and avoid their defense systems to reach the CPU. Collect secret files and folders to land as high as possible in the highscore list.

A special kind of a hacker game! As a computer virus you are infiltrating various servers and avoid their defense systems to reach the CPU. This is like a racing competition. Every progress gets you points. Your best score for each level will be saved in an online highscore list.
The highscore list is separated into 7 continents, 26 regions and 216 countries. You can see your ranking everytime for the respective location. Set your own goals! Do you want to be the best at your favorite level in your country, continent or even worldwide?

Besides the highscores for every level CYPEST also has a "Hacker-Olymp"! There all scores of a player are summed up for universal global highscore list. The game mechanices are child's play. The virus is flying upwards automatically, you'll only need to press left or right on the keyboard or gamepad. Easy to learn, hard to master. You can play the game with your friend on one PC. In each level you can also get up to four medals for your score.

CYPEST was originally developed as a freeware game and can still be played on the website of the game for free. It is running inside the browser and on Windows. The twenty freeware levels are 100% free.

CYPEST Underground is the further development. There are new missions with a total of 52 levels. The game is now more beginner friendly, but experienced players will also get a challenge. The medal system is completely new. There is new music, the two player mode was completely redesignet, new enemies and many small improvements. You can play the freeware and see if you like the gameplay. It is like an extensive demo.

You can not only see your accomplishements inside the game, but also on the CYPEST web page. You can also share them on every social network without hassle.

CYPEST Underground is 100% integrated into the Steam ecosystem. You don't have to register a new account. There will be achievements and many other things. During the first start of the game you'll need to set your location and can play immediately. Highscores from the freeware can not be carried over.

Privacy protection

We're only saving the data which is absolutely necessary, regardless of the freeware or Steam version. The game is only connecting to the server if one logs in or reaches a new highscore. The score will be saved into a database. We don't save how often you play. We will not know how many times you tried a level. There is no tracking code. Only the data is saved which is needed for your maximum gaming experience. The statistics you'll see inside the game will only be saved on your local machine.

Features

- easy controls via keyboard or gamepad
- 5 missions with 52 levels
- medal awards
- comprehensive online highscore lists
- an online profile for every player
- local two player mode
- local statistics
- colorful neon graphics

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