Last Updated on October 8, 2025 by The Official Game Rules Team

Duel for Cardia is a tactical two-player card battle where timing, bluffing, and strategic sacrifice are just as important as power. Each player leads a faction of heroes, mages, and inventors, clashing in a series of one-on-one encounters. You’ll deploy characters, trigger abilities, and manipulate influence to outsmart your opponent. The first to claim five Signets — symbols of dominance — wins the game.

A vertically oriented photo of the board game box for Duel for Cardia. The box art features a stylized illustration of a female, elf-like figure with horns, floating or flying in a dark, vibrant purple, pink, and yellow starry sky. She wears a dark outfit and is surrounded by swirling energy, with her arms outstretched. Below her, a dark silhouette of another figure flies downward. In the background are golden, domed structures that appear to be part of a floating city. The game title, "DUEL FOR CARDIA," is prominently displayed in large, stylized yellow and pink text across the lower half of the box. Small icons and text on the box indicate the game is for ages 9+, 2 players, takes approximately 15 min, and is published by Hans im Glück. The designers, Mathieu Rivero & Faouzi Boughida, are credited at the bottom.

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How to Play Duel for Cardia

Q: Can I win an encounter and still activate my card’s ability?

No. Only the losing card activates its ability unless a card effect says otherwise.

Q: How do I adjust game difficulty?

Combine Deck II with Locations for added complexity. Difficulty increases as your deck’s and location’s stars add up.

Overview

Players: 2 | Ages: 12+ | Play Time: 20–40 minutes

Game Components

64 Character Cards (2 identical sets of 32)
4 Summary Cards
8 Location Cards
22 Modifier Tokens (+1, +3, and +5 values)
12 Signet Tokens
6 Ongoing Effect Tokens

Setup

Sit facing each other.
Place all Signets, Modifiers, and Ongoing tokens within reach.
Prepare the Location Deck.
Shuffle the Location Cards into a face-down stack near the token supply.
The chevron on the back indicates the direction of play.
For your first few games, ignore location effects.
Build Your Decks.
- Each player takes the 16 Character Cards marked with “I” (Deck I).
- Return all “II” cards to the box for later play.
- Your deck consists of cards numbered 1–16, each with an Influence Value, an Ability, and a Faction (color + icon).
Shuffle and Draw.
Shuffle your 16 cards face down to form your deck.
Draw the top 5 cards into your hand.
Distribute Summary Cards.
Each player takes two Summary Cards for quick reference.
Determine Starting Player.
Choose randomly or let the player who most recently won a duel start.

Game Overview

A game of Duel for Cardia is played over a series of rounds.
In each round, players simultaneously reveal cards in Encounters — battles between two characters.
The higher influence card wins a Signet, while the losing card’s ability activates.

The first player to collect 5 Signets wins the game.

Round Structure

Each round has 3 phases:

1. Play Cards

Both players secretly choose one card from their hand and place it face down.
Once both are ready, reveal the cards simultaneously.
Compare their Influence Values.
- The card with higher influence wins the encounter and takes 1 Signet.
- The lower card loses but activates its ability.
- In a tie, no one gains a Signet and you skip the ability phase.

Cards remain in play after being used — future abilities can interact with them.

2. Activate Abilities

Only the losing card’s ability activates. Abilities may:

Add or subtract influence,
Force discards,
Move Signets, or
Modify past or future encounters.

Some cards include effects that break standard rules — always follow the card text if it conflicts with the base rules.

Ability Types

Instant Abilities: Take effect once immediately.
Ongoing Abilities: Stay active. Mark these cards with an Ongoing Token.
The effect remains until the token is removed or another ability cancels it.

Changing Influence

Some abilities add modifiers (e.g., +3, +5).
Attach the corresponding Modifier Token beneath the card.

The total influence is recalculated immediately.
If the modifier changes the winner, transfer the Signet to the new winner.
A tie returns the Signet to the supply.

A photograph displays various game components from Duel for Cardia laid out on a plain white surface. In the upper left is a loose pile of large, oval, reddish-purple tokens, each marked with a golden ring design and a small purple jewel, which likely represent a high-value currency or resource. Below this, a stack of circular, silver-colored cardboard tokens is visible, showing different numerical values such as 1, 3, and -5. Near the bottom left, a small cluster of smaller, dark purple tokens shaped like an infinity symbol is present. Three playing cards are included in the image: one in the center is face-down, revealing its card back design which features a vibrant, ethereal cityscape in shades of purple, orange, and gold. Two other cards are face-up on the right side of the image, each featuring unique fantasy character art against a striking backdrop of dark blue and purple starlight.

3. End of Round

Each player draws 1 card from their deck.
If your deck is empty, simply skip this step — you don’t lose the game.
Then begin the next round starting again with Phase 1.

Winning the Game

The game ends immediately when any of the following occur:

A player has 5 or more Signets at the end of a round.
An ability explicitly declares victory.
A player cannot play a card during Phase 1 — their opponent wins instantly.

If both players reach 5 Signets in the same phase, continue playing until one player has more.
If both players run out of playable cards and have the same number of Signets, the game ends in a draw.

For a longer match, play a Best of Three series.

Abilities & Keywords (Simplified)

Influence: Determines encounter outcomes. Modifiers stack and can be negative.
Discard: Remove a card from hand or play area; tokens return to supply.
Activate: Trigger an ability on another card.
Copy: Replicate another card’s ability as if printed on your card.
Past Encounter: A previous card battle in the direction opposite of play.
Following Encounter: The next one in the direction of play.

Deck II and Locations (Advanced Play)

Once you’ve mastered the base deck, expand with Deck II and Location Cards.

Deck II: Same structure, but new abilities and higher complexity.
Locations: Add a global rule for the entire game, changing tactics each match.
Each Location has a difficulty rating (1–3).
Combine Deck II and Locations for greater challenge and variety.

For a custom duel, mix colors or factions across decks — just ensure both decks remain symmetrical for balance.

FAQ: Duel for Cardia

Can I win an encounter and still activate my card’s ability?

No. Only the losing card activates its ability unless a card effect says otherwise.

What happens if both cards tie in influence?

No Signets are awarded and no abilities trigger. Move to the End of Round phase.

Can influence ever go below zero?

Yes. Some modifiers or effects can make a card’s total influence negative.

Do ongoing abilities stay active if the card later wins an encounter?

Yes. Ongoing effects persist until their token is removed.

If a modifier changes the result of a past encounter, do I re-activate abilities?

No. Abilities only trigger at the moment of their encounter.

Do I lose if I run out of cards?

No, but you can’t play further cards in Phase 1. If your opponent still can, you lose immediately.

How do I adjust game difficulty?

Combine Deck II with Locations for added complexity. Difficulty increases as your deck’s and location’s stars add up.

Conclusion

Duel for Cardia is a game of mind games, not just numbers. You’ll need to balance power against timing, deciding when to sacrifice a strong card for a tactical ability. Each decision ripples through future encounters — and no duel plays out the same way twice.

Victory goes not just to the stronger deck, but to the sharper mind!