How to Download Moonsigil Atlas

1. Click on the Moonsigil Atlas 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 10/Windows 11
  
• Processor: Intel Dual Core @ 2.5 GHz or higher (or AMD equivalent)
  
• Graphics: Intel(R) Graphics
  
• Storage: 2 GB available space
  
• Additional Notes: 1080p, Low Settings

Recommended:

• Requires a 64-bit processor and operating system
  
• OS: Windows 10/Windows 11
  
• Processor: Intel Quad Core @ 3 GHz or higher (or AMD equivalent)
  
• Graphics: GeForce GTX 1630
  
• Storage: 2 GB available space
  
• Additional Notes: SSD Recommended

Linux Requirements

Minimum:

• OS: Ubuntu 24.04.2
  
• Processor: Intel Dual Core @ 2.5 GHz or higher (or AMD equivalent)
  
• Graphics: Intel(R) Graphics
  
• Storage: 2 GB available space
  
• Additional Notes: 1080p, Low Settings

Recommended:

• OS: Ubuntu 24.04.2
  
• Processor: Intel Quad Core @ 3 GHz or higher (or AMD equivalent)
  
• Graphics: GeForce GTX 1630
  
• Storage: 2 GB available space
  
• Additional Notes: SSD Recommended

Mac Requirements

Minimum:

• OS:
  
• Processor:
  
• Graphics:

Recommended:

The deckbuilding roguelike with no energy – play cards using physical space! Slot cards together, manipulate the shape of your cards, and create overpowered combos to break the game!

Experience a roguelite deckbuilder without energy or action points: there's no limit to how many cards you can play, as long as they fit! Every card is a sigil you place on a grid, each with its unique shape, keywords, and effects - turning each combat into a tactical optimization challenge.

Create powerful synergies through rune positioning, adjacency, overlap, and persistent effects. Place the right sigil at the right time to trigger devastating combos. Beyond spatial strategy, Moonsigil Atlas is about creative deckbuilding: draw infinite cards to deal infinite damage or make ten copies of your strongest card.

A fully modular, player-driven upgrade system. Every card can be modified as you see fit: reshape them, inscribe runes, add keywords, and more. Spread power across your deck or invest everything into a handful of unstoppable cards. With tens of thousands of possible combinations, even the simplest cards can become build-defining centerpieces.

With 250+ cards, alternate starting decks, unlockables, forbidden cards, 3 characters with radically different playstyles and a fully randomized map, every run offers new, game-breaking possibilities.

Battle dozens of astral entities and three Titans that reshape the board itself. Hostile zones, shifting grids, and unique win conditions turn every encounter into a test of adaptation and mastery. A powerful deck is only half the battle…

“an incredible entry into the deckbuilding roguelike genre, reinventing familiar mechanics with a fun twist that fits in with the thematic elements of the game beautifully.”
9/10 – Try Hard Guides

“It’s a truly innovative rogue-like deckbuilder with a compelling visual style, great sound and unique space-based gameplay.”
4/5 – Hey Poor Player