Rival Books of Aster is a strategy card game that features over 140 hand illustrated spells that you can use to build custom decks and go head to head against other players. Each spell is also a page in a living story book that translates itself and reveals its secrets as you play the game.

Rival Books of Aster does NOT contain randomized booster packs. Play for free with a starter deck of your choice, and expand your collection with DLC packs containing known-quantities of cards.

Can you decipher the Rival Books to save your household and rule the plane of Aster?

• An easy to use deck-builder
• Training Levels for Practice
• AI Battle Mode
• PvP matchmaking & ranking system
• A unique take on familiar game mechanics
• 4 distinct art styles by award-winning artists
• Over 140 different spells & characters
• Endless gameplay possibilities

Expand your deckbuilding possibilities with new spells and characters from DLC expansion packs. What new strategies and synergies will you uncover? There are 4 Starter Decks and 4 Expansion Packs (will require that house’s Starter Deck) available:

Starter Decks

• Heptameron
• Theurgia Goetia
• Grimoirum Velum
• Pauline Art

Expansion Pack (Requires Corresponding House’s Starter Deck)

• Heptameron Expansion Pack
• Theurgia Goetia Expansion Pack
• Grimoirum Velum Expansion Pack
• Pauline Art Expansion Pack