Draft: this page is still being reviewed and may change.

Last updated 6 October 2026

These terms cover OPTCG Deck Planner (optcg-deck-planner.app) and OPTCG Duel (optcgduel.app), together “the sites”. They are free fan tools for planning One Piece Card Game decks and playing practice matches online. By using them you agree to the terms below.

Fan project

Unofficial fan-made project, not affiliated with or endorsed by Bandai.

“One Piece Card Game” © Bandai Co., Ltd. “One Piece” © Eiichiro Oda / Shueisha, Toei Animation. All trademarks, card images and game content belong to their respective owners and are used for informational and community purposes.

If you hold rights in any of this content and want something changed or removed, email optcgduel@gmail.com and we will act on it promptly.

Copyright and content reports

If you believe something on the sites, including a player’s uploaded playmat or card back, infringes your copyright or breaks these terms, email optcgduel@gmail.com with:

the item (a screenshot and the player’s name or match link);
your contact details;
the work you own;
a statement that you believe in good faith the use is not authorised and that your notice is accurate.

We remove reported content promptly while we look into it. Accounts that repeatedly upload infringing content lose upload rights or are suspended. Use the in-game Report button for conduct problems.

Using the sites

The sites are provided as is, without warranties of any kind. Features may change, break or be removed, and the sites may go offline at any time.
Card prices and recent sales come from TCGplayer and are for reference only. They can be late or wrong, and they are not offers to buy or sell.
The duel rules engine is our own reading of the official rules and card text. It can get rulings wrong; the official rules always win. Ratings (Bounty) are for fun and carry no prize or official standing.
Group buys are a bookkeeping aid between people who know each other. We are not a party to any purchase or payment and do not handle money.

Your account and content

You sign in with Google. Keep your Google account secure; anything done while signed in is treated as done by you.
Usernames, match chat and uploaded images (playmats, card backs) must not be offensive, harassing, or impersonate someone else, and you must have the right to use any image you upload.
Do not cheat, attack or overload the sites or the game server, or scrape them at volume.
You agree to follow our Rules of conduct. We may remove images, warn, suspend or ban accounts that break them.
We may remove content or suspend accounts that break these terms. You can stop using the sites at any time and ask us to delete your account (see the Privacy policy).

Credits

One Piece Card Game, its rules, card text and artwork: Bandai Co., Ltd.
One Piece: Eiichiro Oda / Shueisha, Toei Animation.
Card images and market prices: TCGplayer, with the card catalog collected through TCGCSV.
Fonts: Fraunces and IBM Plex Sans in the planner; Bricolage Grotesque, Outfit and Chakra Petch in OPTCG Duel. All served by Google Fonts.
Built with open-source software including React, Vite, FastAPI, SQLAlchemy and Colyseus. Thank you to their authors.

Changes

We may update these terms. The date at the top changes when we do, and continuing to use the sites means you accept the updated terms.