About This Demo

The Phantom Cardia: Astral Card Duel Demo includes the complete prologue and a replayable AI Co-op Raid. Choose the Ember, Stone, or Umbral Academy, build a 30-card deck, and reclaim your erased memories in the Star Map campaign—or fight beside an AI companion against a more powerful Blank Archive Keeper.

Complete Prologue Experience

• Choose your starting path from 3 Academies

• Complete 8 Star Map nodes and the prologue Boss battle

• Learn turn-based card combat, Mana management, and positioning tactics

• Open card packs, refine your deck, and create card combos

• Experience your first card fusion and strengthen a core card

• Defeat the Archive Keeper and claim its unique Boss Imprint

Special AI Co-op Trial

You and your AI companion each bring a 30-card deck and separately manage your own Health, hand, Mana, and board. Take your turns before the Boss phase, watch your companion’s summons, spells, attacks, and Academy skill, then follow up with the right action to trigger team combos and defeat the Blank Archive Keeper on Normal.

The AI Co-op Raid can be replayed. Your first victory awards 120 Gold, 25 Stardust, 3 Diamonds, and one Boss Trophy Pack containing 5 cards. The first-clear reward can be claimed only once.

Whether you fight alone or beside an AI companion, every turn asks you to choose between offense, defense, and building resources. Minions, spells, weapons, Academy skills, and deck Bonds all work together to shape your tactics.

This demo focuses on the prologue and AI co-op experience. Additional Academies, cards, modes, later chapters, friend co-op, more Raid Bosses, and Extreme difficulty are available only in the full game. Demo progress uses a separate save file.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

AI tools were used to assist with editing the game’s promotional videos and creating a small portion of its art assets.