How to Download Protocol: Umbra

1. Click on the Protocol: Umbra 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 10
  
• Processor: Intel(R) Core(TM) i3-1215U 1.2GHz
  
• Memory: 512 MB RAM
  
• Graphics: Intel(R) UHD Graphics 128MB
  
• Storage: 128 MB available space

Recommended:

• OS: Windows 11
  
• Processor: Intel(R) Core(TM) i3-10105F 3.7GHz
  
• Memory: 1 GB RAM
  
• Graphics: NVIDIA GeForce GT 1030 2GB
  
• Storage: 128 MB available space

Linux Requirements

No minimum requirements!!
No maximum requirements!!

Mac Requirements

No minimum requirements!!
No maximum requirements!!

You are the AI of a spaceship orbiting a mysterious celestial body at the edge of our solar system. While the crew sleeps, you stay awake watching through cameras, monitoring the vessel, and searching for anomalies.

You are the AI of a spaceship orbiting a mysterious celestial body at the edge of the solar system. While the crew sleeps, you remain awake, observing, protecting, and monitoring every step of this mission. However, it seems the ship and its crew are not the only ones circling this object.

Using security cameras, your function is simple: protect, guard, and monitor every corner of the ship. Nothing can go unnoticed. You are alone on this mission, relying only on your memory and circuits to guide you.

Key Features:

• 5 detailed rooms: Monitor several distinct areas, each with its own feel and layout.

• 3 progressively harder difficulties: Test you awareness and memory against increasing difficulty levels.

• 40+ unique anomalies: From things you might miss... to things you can't.

Protocol: Umbra is an observation and memory game in which the player must identify anomalies and unnatural alterations occurring within the ship, report them, and neutralize them while trying to survive through multiple nights that grow increasingly complex the longer the ship stays orbiting the celestial body.

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