What linking your Uma Musume account means

Linking your Uma Musume account means connecting your game progress to a user ID and password so you can play on different devices without losing your horses, items, or race history. When you link, the game stores your data on DMM's servers instead of only on your phone. If you get a new device, reinstall the game, or switch between Android and iOS, you can log back in and pick up where you left off.

Uma Musume is a mobile game made by Cygames and published through DMM (a Japanese digital platform). To link your account, you create a DMM ID, then connect it inside the game. The process takes about five minutes and requires an email address you can access.

Key Takeaways

  • You must create a DMM account first using an email address, then link it inside Uma Musume through the game's settings menu.
  • Linking stores your game progress on DMM's servers so you can play on a different device without losing your horses or items.
  • If you do not link your account and reinstall the game, all your progress is lost because it only exists on that one device.
  • You can only link to one DMM account per game installation, but one DMM account can link to multiple game accounts if you unlink first.

Creating your DMM account

Go to the DMM website (dmm.com or dmm.co.jp depending on your region) and click the login button in the top right. Look for a link that says "Create a new account" or "Register" — the exact wording changes by region. You will see a form asking for an email address and password.

Enter an email address you check regularly. Use a password that is at least eight characters long and includes both letters and numbers. DMM will send a confirmation email to that address. Open the email, click the link inside, and your DMM account is ready. Write down your DMM ID (a number that appears in your account settings) somewhere safe — you will need it if you ever need to recover your account.

Linking inside the Uma Musume game

Open Uma Musume on your phone and tap the menu button (usually three horizontal lines in the top left or bottom right, depending on your device). Scroll down until you see "Account" or "Data Transfer" — the exact name varies by game version. Tap it.

You will see a button that says "Link Account" or "Connect DMM Account". Tap that button. The game will ask you to log in with your DMM email and password. Enter them exactly as you created them. The game will show a confirmation screen with your DMM ID. Tap "Confirm" or "OK" to complete the link.

Once linked, you will see your DMM ID displayed in the Account menu. This means your game progress is now saved to that DMM account. If you ever reinstall the game or switch devices, you can log in with the same DMM email and password to restore everything.

What happens if you do not link your account

If you reinstall Uma Musume without linking first, the game has no way to know who you are. Your old progress — all your horses, training items, race records, and currency — stays on the old device and cannot be recovered. The game treats a fresh installation as a brand new player.

Linking takes five minutes and prevents this problem entirely. Even if you think you will never reinstall the game, a phone update, a factory reset, or a lost device can force a reinstall without warning. Linking is the only protection.

Switching to a new device with your linked account

Install Uma Musume on your new phone or tablet. Open the game and tap the menu, then "Account" or "Data Transfer". This time, look for a button that says "Restore Account" or "Log In". Tap it and enter your DMM email and password.

The game will read your progress from DMM's servers and restore everything — your horses, items, currency, and race history. This usually takes one to three minutes depending on your internet speed. Once the read finishes, you are playing on your new device with your old account intact.

Unlinking and linking to a different DMM account

If you want to link your game to a different DMM account, you must unlink first. Open the game menu, go to "Account" or "Data Transfer", and look for an "Unlink" button. Tap it and confirm — the game will ask you to type something like "UNLINK" to make sure you mean it.

Once unlinked, your game progress stays on your device but is no longer connected to any DMM account. You can now link to a different DMM account by following the linking steps above. The old DMM account no longer has access to this game, but you can link it to a different Uma Musume installation if you want to keep multiple game accounts.

Troubleshooting common linking problems

If the game says "Link failed" or "Connection error", check that you are using the correct DMM email and password. Passwords are case-sensitive, so "Password123" is different from "password123". If you forgot your password, go to the DMM website, click "Login", then click "Forgot password?" and follow the email recovery steps.

If the game says "This account is already linked", it means your game installation is already connected to a DMM account. You must unlink first before you can link to a different one. If you are trying to link to the same DMM account on the same device, the link is already active and you do not need to do anything.

If you are on WiFi and the link keeps failing, try switching to mobile data or moving closer to your router. A weak connection can interrupt the linking process. Wait a few minutes and try again.

Frequently Asked Questions

Can I play Uma Musume on both Android and iOS with the same account?

Yes. Once you link to a DMM account, you can install the game on an Android phone and an iOS phone and log in to the same account on both. Your progress syncs across both devices, so you can play on whichever one you pick up. The game data lives on DMM's servers, not on either device.

What if I lose access to the email address I used for my DMM account?

You can change the email address associated with your DMM account by logging into DMM's website, going to Account Settings, and updating your email. You will need to confirm the new email address by clicking a link in a confirmation email. After that, you can log into Uma Musume using the new email address.

Does linking cost money?

No. Creating a DMM account and linking it to Uma Musume is free. DMM makes money from optional in-game purchases, not from linking itself.

What if I link my game and then someone gets my DMM password?

They can log into your game account if they know your DMM email and password. Change your DMM password when ready by going to the DMM website and using the password reset option. After you change it, log back into Uma Musume to make sure your account is still linked. Consider using a strong, unique password that you do not use anywhere else.

Can I unlink and relink my account multiple times?

Yes. You can unlink and link as many times as you want. Each time you unlink, your game progress stays on your device but loses its connection to DMM. Each time you link, you connect it to a DMM account (the same one or a different one). There is no limit to how many times you can do this.