How to Download Halcyon

1. Click on the Halcyon 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:

• Requires a 64-bit processor and operating system
  
• OS: Windows 8/10 (32 or 64-bit)
  
• Processor: 1.6hz
  
• Memory: 1 GB RAM
  
• Graphics: NVIDIA GeForce 5+ ATI Radeon R300+
  
• DirectX: Version 9.0
  
• Storage: 3 GB available space

Recommended:

• Requires a 64-bit processor and operating system

Linux Requirements

Minimum:

• Requires a 64-bit processor and operating system

Recommended:

• Requires a 64-bit processor and operating system

Mac Requirements

Minimum:

• Requires a 64-bit processor and operating system

Recommended:

• Requires a 64-bit processor and operating system

The year is 2506. A vestige of humankind, you’ve been sent to Earth on the faint hopes that you will find more than the corpse of a once hospitable planet. Instead, you find a landscape blooming with lush, mutated new life.

Rediscover Earth

An era of birth and regrowth breathes new life into the world…but not for humanity. Fight your way through giant insects, mutated birds, and much, much worse. All against the backdrop of stunning parallax environments, colorful backdrops, and the hauntingly beautiful remnants of a long departed Anthropocene.

Fight, Fly, Survive

Shoot your way through ground and aerial combat encounters, armed only with your plasma rifle and flight bot. Respite is scarce. Supplies are scarcer. Your journey will be marked by the corpses of those who came before you.

Fulfill Humanity’s Last Hope

Sent by Mothership Terra, you will be pushed to your limits as you battle through unique biomes and hazardous hellscapes. You will face a myriad of malformed creatures thriving in the now fertile wasteland your people left behind. Can you survive this inhuman halcyon?

A Nostalgic Indie Debut

A game by Raleigh and Keirdan. A triumphant debut title from Real Action Labs, this 2D pixel art side-scrolling shooter is made possible by the hard work and passion of two independent developers.
@RealActionLabs / @PaladinGoth
@Audio_Dread

Special thanks to…
SToffler, @StofflerPxL for revamping art and creating the opening cinematic
And
Renan Costa, @drakerino for designing and animating the trailer

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