Moonsigil Atlas launches May 28!
Apr 30, 2026
| Moonsigil Atlas

Moonsigil Atlas launches May 28!

Moonsigil Atlas, our jam-born deckbuilder developed by Snake Tower Games just got its biggest update yet ahead of launch on Steam on May 28, 2026. Alongside today’s release date announcement, we are also unveiling a fully updated demo and a new gameplay showcase trailer giving players the clearest look yet at what Moonsigil Atlas really is and how it feels to play. 

 

 

In Moonsigil Atlas, your true resource is physical space. There is no energy, no mana, and no action point cap. Players can cast as many cards as they want, as long as they fit on the board. Every card is a sigil with its own shape, keywords, and effects, turning each battle into a tactical challenge of placement, timing, and optimization.

DECKBUILDING MEETS TILE PLACEMENT

Every turn in Moonsigil Atlas is a test of both spatial strategy and creative deckbuilding. Players build power through rune positioning, adjacency, overlap, and persistent effects, placing the right sigils at the right time to trigger devastating combos. Beyond the puzzle-like challenge of fitting cards onto the grid, the game encourages wildly expressive builds — from infinite draw loops to decks built around a single unstoppable card. The result is a game that fuses the depth of a deckbuilder with the satisfaction of a spatial puzzle.

FACE COSMIC DIVINITIES

Players will battle dozens of astral entities and confront three powerful Titans that can reshape the board itself. With hostile zones, shifting grids, and encounter-specific win conditions, every fight demands adaptation as much as raw power. In Moonsigil Atlas, building a strong deck is only half the challenge.

FEATURES

  • No energy. No mana. Just space: Cast as many cards as you want, as long as they fit on the board
  • Deckbuilding meets tile placement: Build devastating synergies through adjacency, overlap, rune positioning, and persistent effects
  • A fully modular upgrade system: Reshape cards, inscribe runes, add keywords, and transform your deck your way
  • 250+ cards and thousands of build paths: Discover huge variety across unlockables, alternate starts, and randomized runs
  • Three distinct characters: Master radically different playstyles across Feldryn, Aladara, and Tark’thul
  • Cosmic enemies and board-altering bosses: Face astral entities and Titans that change the rules of each encounter
  • Built for expressive, replayable strategy: Every run offers new ways to push synergies, combos, and creative deckbuilding to the limit

BORN IN A GAME JAM, BUILT FOR THE LONG RUN

Originally inspired by Fallowtide, a winning prototype the devsfrom Snake Tower Games built for Ludum Dare 52, Moonsigil Atlas grew from a game jam concept into a full commercial release built around one standout idea: in this deckbuilder, your most important resource is not energy, but space. 

Moonsigil Atlas launches on Steam on May 28, 2026. Wishlist the game now, and try the newly overhauled demo for a closer look at the final experience.

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In case you missed it, we also recently announced Ascenders: Beyond the Peak, Sky Dust, and Wind Runners. Don’t forget to check those games out too!

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