Get the latest info on Kaiju No. 8 The Game serial and redeem codes! Find out if any free codes are available and where to redeem them for in-game rewards in K8 The Game.
Table of Contents
Serial Code List
Code on Anniversary Special Program!
| Serial Code | Reward / Expiration Date |
| 8GODAY2026 |  ×500Expires August 4, 2027 22:59 (UTC+8) |
A serial code to receive Dimensional Crystal ×500 was announced during the program. You will need to sign in to the official web store to enter the serial code.
Web Store (External Link)How to Redeem Codes
- Open the Web Store and Tap "Sign In"
- Tap Sign In
- Enter the Code and tap "Redeem Serial Code"
- Open the In-Game Mail to Claim the Rewards
Open the Kaiju No. 8 Web Store. Tap "Sign In" to log into your account. You cannot redeem codes if you are not signed in, so please ensure you are logged in.
Web Store (External Link)
Once you open the web store, tap "Sign In" to log into your account. You won't be able to redeem your code unless you're signed in, so make sure you don't skip this step!
| Tip! | If you haven't linked your account, please link your account before signing in to the Web Store. |
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Once signed in, scroll down and enter the code in the serial code text box, then tap the Redeem button below.
After redeeming the code, close the Web Store and return to the game. You can claim the reward from your in-game mailbox.
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Kaiju Core MaterialMust Reads Before Playing
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| Pre-Registration | Required Specs | Steam Release |
| Link Data | Data Transfer | Best Settings |
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