How to Redeem The Seven Deadly Sins: Grand Cross Codes
Guide updated October 2026
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The Seven Deadly Sins: Grand Cross is published by Netmarble. This guide covers how to redeem The Seven Deadly Sins: Grand Cross codes: where to enter them, each step, where the rewards go and what to do when a code fails. RallyCodes currently lists 16 working The Seven Deadly Sins: Grand Cross codes.
Where to redeem The Seven Deadly Sins: Grand Cross codes
The Seven Deadly Sins: Grand Cross codes are redeemed right inside the game — no website needed.
Requirements: our sources mention no level requirement — just make sure you are signed in to the account you play on.
How to redeem The Seven Deadly Sins: Grand Cross codes, step by step
- 1Step 1: Finish Chapter 1, open the Mail icon (top right) and claim the Secret Box.
- 2Step 2: Go to Menu > Inventory > Consumables tab.
- 3Step 3: Open the Secret Box and enter the code (case-sensitive).
- 4Step 4: Rewards are sent to your in-game mailbox.
The Seven Deadly Sins: Grand Cross code not working? Here is why
| Error / situation | Cause | Fix |
|---|---|---|
| Invalid code / code does not exist | A typo, wrong upper/lower case, or an extra space. | Tap Copy on RallyCodes and paste the code instead of typing it. |
| Code expired / fully claimed | Codes have an expiry date or a limited number of uses. | Try a newer code from the The Seven Deadly Sins: Grand Cross code list, and tap 👎 to warn other players. |
| Code already used | Most codes work only once per account. | Move on to a code you have not used yet. |
Latest The Seven Deadly Sins: Grand Cross codes & official channels
A few The Seven Deadly Sins: Grand Cross codes that still work (tap to copy them on the code page):
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