Rival Books of Aster is a strategy deck building 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.
All Reviews:
Mostly Positive (63) - 73% of the 63 user reviews for this game are positive.
Release Date:
Mar 25, 2024
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Publisher:
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About This Game


Four rival books, each a separate translation of a single source that is long since lost to time. All begin with the same phrase: "Take me and hide me, for I am the one true light". Every journey begins with a choice and the time has come for you to make yours.

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

System Requirements

Windows
macOS
    Minimum:
    • OS: 10
    • Memory: 1 GB RAM
    • DirectX: Version 9.0
    • Storage: 500 MB available space
    Recommended:
    • DirectX: Version 12
    Minimum:
    • OS: 10.8
    • Memory: 1 GB RAM
    • Storage: 500 MB available space
    Recommended:
    • OS: 10.10
* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.

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