Important

Account Linking Recommended

Event

1 Million Global Downloads Reached!

Event

Raid Battle: Kaiju No. 1 Now Available!

Important

Official Release & Pre-Registration Rewards

News

Version 1.0.4 Update Now Live

News

Celebrating Reaching #1 on Download Rankings

Gacha

Reno Ichikawa Pickup Gacha Now Available!

Gacha

Paid-Only ★5 Guaranteed Gacha Now Available!

News

#K8Game Reacts Campaign!

News

Defense Force Pass Now Available!

News

The KAIJU NO. 8 THE GAME Web Store

News

Release Celebration Items—Value Items Now On Sale!

Known Issue

[Updated] Regarding Currently Confirmed Issues

Event

1 Million Global Downloads Reached!

Event

Raid Battle: Kaiju No. 1 Now Available!

News

Version 1.0.4 Update Now Live

News

Celebrating Reaching #1 on Download Rankings

Gacha

Reno Ichikawa Pickup Gacha Now Available!

Gacha

Paid-Only ★5 Guaranteed Gacha Now Available!

News

#K8Game Reacts Campaign!

News

Defense Force Pass Now Available!

News

The KAIJU NO. 8 THE GAME Web Store

News

Release Celebration Items—Value Items Now On Sale!

Important

Account Linking Recommended

Important

Official Release & Pre-Registration Rewards

Known Issue

[Updated] Regarding Currently Confirmed Issues

2025-09-02T10:00:00Z

Account Linking Recommended

Overview

Thank you for playing KAIJU NO. 8 THE GAME.

To protect your game data, we ask that you link your account.

 Account Linking

By linking your account, you can easily restore and transfer your game data even if you accidentally delete the app.

Additionally, if your current device malfunctions or if you wish to change devices, you can transfer your player data to the new device.

 How to Link Your Account

You can link your account to your Apple Account or Google Account.

Steps to Link Account:

1. Select the global menu from the top right of the Home screen.

2. From the Menu (≡) on the top left of the screen, select Account Linking.

*Account Linking is not possible via "Data Transfer" on the title screen.

3. On the Confirm Link screen, you can choose to "Sign in with Apple" or "Sign in with Google."

4. Sign in with your selected account.

After signing in, the message "Account linking complete" will appear upon successful linking.

*Please keep your linked account information secure and avoid sharing it with others.

*After account linking is complete, a confirmation email will be automatically sent to the email address associated with the linked account.

FAQ: Regarding Account Linking

Q1: How do I restore my data or transfer my account?
A1: Access Title Menu (≡) on the title screen, select Data Transfer and follow the on-screen instructions.

Q2: After transferring account, will I be able to pick up my game progress from when I linked my account?
A2: You can proceed with the game from when you were last online. For example, if you link your account when a mission is ongoing and transfer your account after clearing the mission, the game will proceed from the time when the mission is cleared.

Q3: After transferring my account to a different device, can I still play on the original device?
A3: Yes, you can play on both devices. However, you cannot log in to the same account on both devices simultaneously. If a new login is detected on a device, you will be returned to the title screen on the previous device.

Q4: Will my linked account be unlinked if I delete my player data?
A4: No, deleting your player data will not unlink your account. To unlink an account, go to Menu (≡) > Account Linking.

Q5: I wish to change my linked account.
A5: To do so, first unlink your current account via Menu (≡) > Account Linking. You will then be able to link a new account.