
Play cards by positioning magic sigils on the crescent moon. There's no limit to how many cards you can play, as long as you have the space!

With three playable characters and hundreds of cards to choose from, there are countless possible decks with a variety of strategies and play styles.


Position your sigils strategically and get massive bonuses for adjacency, overlap, and more!


Some sigils persist on your board between turns or have ongoing effects. Certain enemies will even cast their own hostile sigils onto your board!


Upgrade your cards and inscribe them with runes of power. Spread the benefits over your entire deck, or put everything into one or two overpowered cards.


Travel across the fallen realms and experience visions from beyond. Choose between mysterious boons, powerful upgrades, and more.

Join our Discord to sign up for a playtest! We'd love to hear your feedback!
We have just made a major update to the Moonsigil Atlas demo! Here are some of the new things you can encounter in-game:
Preliminary Localization to Simplified Chinese, Japanese, Korean, and Russian. There may still be issues as we work with our localization team, and we\'d love to hear feedback from you!
[/*]Artifacts that give powerful, permanent bonuses
[/*]Forbidden Cards that are rare, powerful, and can be acquired by any character
[/*]New Encounters including shape swapping and card duplication
[/*]Act 2 including many new enemies and a new boss fight
[/*]Even more! Including dozens of visual improvements, quality of life updates, and bugfixes.
[/*]
These updates are live right now!
[dynamiclink href=\"https://store.steampowered.com/app/3590810/Moonsigil_Atlas_Demo/\"][/dynamiclink]
Enjoy the Demo?
You can support us by https://store.steampowered.com/app/3590810/Moonsigil_Atlas_Demo/\"" style="color:#bb86fc;text-decoration:none;">leaving a Steam review . Having more reviews improves our demo\'s visibility on Steam and lets us bring it to more players!
October Next Fest
We will be participating in the October 2025 Steam Next Fest, so keep an eye out for Moonsigil Atlas among the many indie game demos featured! The festival kicks off on Monday, October 13.
If you watch any streamers who play deckbuilding demos, please let them know about us! We do not have a large marketing budget, so any help we can get through word of mouth is extremely helpful. We will be pushing another update at the start of the festival, so stay tuned for the next announcement.
Thank you!
We\'ll see you on October 13th for Next Fest! Until then... take care, frail one. May you find smiles in the dark. \n\nJeremy and Daniel\nSnake Tower Games
Minimum Setup
- OS: TBD
- Processor: TBD
- Graphics: TBD
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