How to play One Piece TCG on Mac, iPad and mobile (2026)

Can you play One Piece TCG on a Mac, an iPad or your phone? Yes, but your options vary a lot depending on the device. In this guide we go through what works on Mac, iPad, iPhone, Android, Chromebook and Windows, what each simulator officially supports and how to start playing on ARENA step by step. Information correct as of 7 November 2026.

Bandai has no official game for playing online against other people. Its only app is the Teaching app, which is a tutorial. Everything else, ARENA included, is an unofficial fan-made simulator.

The options available

• OPTCGSim: the longest-running simulator. You download it from its website, which offers versions for Windows, Mac, Linux, Android (APK file) and iOS (IPA file). There is no web version.
• Bandai's Teaching app: a free official tutorial with a free battle mode against the computer. It is on the App Store and Google Play, and there is a browser version on the official One Piece Card Game website. You cannot use it to play against other people.
• Browser-based simulators: ARENA, DuelVoyager, OneSimulator and Untap.in. They open in your browser, with no downloads. Untap.in is a tabletop with manual rules; the rest automate the game to a greater or lesser extent.

All of them are compared in the best One Piece TCG simulators.

Table: what works on each device

The Teaching app only teaches you how to play and has no games against people. To play online on any device, you need a simulator.

How to play on ARENA on any device

The steps are the same everywhere. Device-specific details follow below.

1. Open your browser: Safari, Chrome or whichever you use.
2. Go to the ARENA page on onlychases.com and tap the button to sign in with your email.
3. Enter your email and type in the code you receive. There is no password. If you do not have an account, one is created automatically; if you already shop at ONLYCHASES, it is the same account.
4. Choose your player name. It is unique, and it is what your opponents and the leaderboard will see.
5. Set up a deck: load a meta decklist in one tap or build your own with any Leader.
6. Play: ranked, a private room with a friend, a Swiss tournament or a game against the AI on one of its four levels.

Your progress is tied to your account, so you can start on your computer and carry on on your phone.

Mac

Options

OPTCGSim has a Mac version, but it is not open-and-play. Its website recommends downloading it with Safari, opening the RIGHT_CLICK_OPEN_ME_FIRST file first and, if macOS warns that the app "is damaged", following a few steps in Terminal to grant it permissions. If you already use it and it works for you, great. If you would rather not wrestle with that, any browser-based simulator works on a Mac without installing anything. The browser version of the Teaching app requires macOS Ventura 13.5 or later and Safari.

ARENA on Mac

Open Safari or Chrome and go to ARENA as in the steps above. If you play often, you can add it to the Dock: in Safari, go to the File menu and choose "Add to Dock" (macOS Sonoma or later). On a small screen, putting the browser in full screen helps.

iPad

Options

Bandai's Teaching app is on the App Store, but it is only a tutorial. OPTCGSim offers an iOS file that is not on the App Store: Apple does not allow unsigned apps to be installed, so you have to sideload it with tools such as Scarlet, and its website warns that those tools are not always available. The most direct way to play online on an iPad is a browser-based simulator.

ARENA on iPad

1. Open Safari and go to ARENA.
2. Sign in with your email and the code.
3. Tap the Share button (the square with the upward arrow next to the address bar; in the latest versions of iPadOS it may be inside the "…" menu) and choose "Add to Home Screen".
4. From now on you open ARENA from its icon, as if it were an app.

On an iPad it is most comfortable to play in landscape, as you get a better view of the board and the cards.

iPhone

Options

The same as on iPad: the Teaching app on the App Store, OPTCGSim via sideload and browser-based simulators. The browser version of the Teaching app lists iPhone 12 or later with Safari.

ARENA on iPhone

1. Open Safari and go to ARENA.
2. Sign in with your email. If the code arrives in Mail on the same iPhone, copy it and switch back to Safari.
3. Tap the Share button (in the latest versions of iOS it is inside the "…" menu) and look for "Add to Home Screen" in the list.
4. Open ARENA from the new icon.

Turn your phone to landscape to see the whole board. And if you are going to play a Swiss tournament, make sure your phone is charged and on a good connection: it takes much longer than a single game.

Android

Options

The Teaching app is on Google Play. OPTCGSim has an APK that you download from its website, not from Google Play: you have to allow apps from unknown sources. If the main APK does not open, there is a 32-bit compatibility version, and its website warns that if your phone is missing fonts you may see pink or purple blocks instead of text. Browser-based simulators work in Chrome without installing anything.

ARENA on Android

1. Open Chrome and go to ARENA.
2. Sign in with your email and the code.
3. Tap the three-dot menu and choose "Add to Home screen".
4. Open ARENA from the icon.

Chromebook

Options

OPTCGSim's website has no ChromeOS version, and the browser version of the Teaching app does not include ChromeOS among its supported systems. What does work without any hassle on a Chromebook is a browser-based simulator, because all you need is Chrome.

ARENA on Chromebook

Open Chrome, go to ARENA and sign in with your email. To keep it handy, pin the tab or create a shortcut from the Chrome menu.

Windows

Options

This is where you have the most options. OPTCGSim runs on Windows and comes with an auto-patcher; its website recommends moving the folder to Program Files and running it as administrator to avoid problems when updating and playing online. The browser version of the Teaching app requires 64-bit Windows 10 or 11 and Chrome. And you have every browser-based simulator too.

ARENA on Windows

Open Chrome, Edge or Firefox, go to ARENA and sign in. If you switch between your PC and your phone, your decks and your rank come with you.

Tips for playing on a phone or tablet

• Use a stable Wi-Fi connection. Switching from Wi-Fi to mobile data mid-game can drop your connection on any simulator.
• Practise against the AI first to get used to the touch controls before you play ranked.
• Load a meta decklist if you do not have a deck yet. We explain which ones work in the best One Piece TCG decks.
• If you are coming from OPTCGSim, read the no-download OPTCGSim alternative to see how to move your deck across.

And if you would rather learn the game properly before jumping in, how to play One Piece Card Game covers the rules step by step.

FAQ

Is there a One Piece TCG app for playing online on iPhone?

There is no official app for playing online. Bandai's Teaching app is a tutorial with battles against the computer. To play against people on an iPhone, use a browser-based simulator such as ARENA.

Can you play One Piece TCG on an iPad?

Yes. Browser-based simulators work in Safari, and you can add them to your Home Screen from the Share button to open them like an app.

Does OPTCGSim work on a Chromebook?

Its website does not offer a ChromeOS version. On a Chromebook, the simplest option is a simulator that runs in Chrome.

Do I need to download anything to play on a Mac?

Not if you use a browser-based simulator. OPTCGSim does have to be downloaded, with a few extra steps on macOS.

Keep reading

• Best One Piece TCG simulators: the full comparison.
• OPTCGSim alternative: no-download options and how to move your deck.
• Play One Piece TCG online with friends: private rooms step by step.
• How to play One Piece Card Game: the rules step by step.