Moonsigil Atlas Steam Digital Key

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! No Energy. No Mana. Just Space.

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.

Deckbuilding Meets Tile Placement

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.

Reshape Your Deck

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.

Thousands of Ways to Break the Game

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.

Face Cosmic Divinities

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…