Phantom Cardia: Astral Card Duel

Co-op Raid Is Live — Now Playable in the Demo!

NexaForgeon Studio

Co-op Raid is now available in Phantom Cardia: Astral Card Duel, and the free Demo has received its own replayable AI Co-op trial. Bring your deck, join forces with a companion, and face supercharged Bosses together!

Two Decks, One Common Enemy

In Co-op Raid, you and an AI companion or one friend each bring a 30-card deck. Both fighters separately manage their own Health, hand, Mana, and board, taking turns before the Boss phase begins.

Watch whether your companion summoned, cast a spell, attacked, or used an Academy skill, then follow up with the right action to trigger a team combo. Some cards also gain co-op support abilities that can heal your teammate, grant Armor, and help the party survive the Boss’s assaults.

Challenge Eight Supercharged Bosses

The full game’s Co-op Raid features eight supercharged Bosses with distinct skills and phase mechanics. Defeat seven rotating regular Bosses to unlock the final raid target. Clear the finale to begin a new raid cycle with a new rotation.

Defeating a Boss on Normal also unlocks its Extreme challenge. Extreme Bosses have more Health, a faster tempo, and more dangerous party-wide assaults, demanding complementary decks and carefully ordered actions.

AI Co-op Has Arrived in the Demo

The free Demo now includes a Normal-difficulty AI Co-op trial. Fight beside an AI companion against the Blank Archive Keeper, then return for replay challenges after your first victory.

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.

The Demo is limited to an AI companion, the Blank Archive Keeper, and Normal difficulty. Friend co-op, the remaining Raid Bosses, and Extreme challenges are available in the full game.

Bring Your Deck and Start the Raid

Co-op Raid and the Demo’s AI Co-op trial are live now. Whether you fight beside an AI companion or a friend, you can enter battle with a deck you built yourself. We’ll see you on the Star Map.

This announcement was originally published by NexaForgeon Studio on Steam on Sep 3, 2026.

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Phantom Cardia: Astral Card Duel

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