What to do with duplicate Board Adventure cards
Duplicate cards are currency in Board Adventure. The right trade turns a stack of extras into the exact card you've been missing. SwapDeck finds that trade automatically.
Why duplicates are valuable
Every duplicate you own is a card someone else is missing. High-star duplicates (4–5★) are especially valuable because they're rare drops — other traders will often give two or three lower-rarity cards in exchange for one.
How to trade your duplicates on SwapDeck
- Scan your album — SwapDeck auto-detects your duplicates.
- Tap Find Matching Traders. SwapDeck shows players who need your duplicates and have the cards you're missing.
- Review their trust rating and trade history.
- Agree on the trade in the app chat and execute it in-game.
- Rate each other after the trade to build the community's trust network.
Fair trade guidelines
- Match star ratings where possible — 5★ for 5★, 4★ for 4★.
- For mismatched rarities, check the rarest cards list to gauge relative scarcity before agreeing.
- If a trader asks you to send first with no trade history, that's a red flag. SwapDeck's trust ratings help you spot this fast.
Frequently asked questions
Can I trade golden duplicate cards?
Yes — SwapDeck tracks golden cards separately and includes them in matching.
How do I know if a trade is fair?
SwapDeck's rarest-cards data shows relative scarcity. Generally match star ratings, and check how common each card is.
What if no one needs my duplicates right now?
Add them to your tradeable list — traders searching for those cards will find you. The platform matches passively even when you're not online.
Is SwapDeck free to use for trading?
Yes, completely free on iOS and Android.