7DS Grand Cross Secret Box Codes – April 2021

Looking for the new 7DS Grand Cross secret box codes to redeem free gems/diamonds, heroes and other freebies? You’ve come to the right place.

Read this post and grab the codes!

The Seven Deadly Sins secret box codes

The list below is the most up-to-date working secret box codes for 7DS Grand Cross.

  • 7dstogether – Mystery Box (Day 4 JP version)
  • Thefestival – Mystery Box (Day 3 JP version)
  • thxfullcounter – Mystery Box (Day 2 JP version)
  • 3000dlmerci – Mystery Box (Day 1 JP version)
  • 7DS1Year – Secret Box rewards
  • dem0n – Secret Box rewards
  • ITBE2020 – Tournament Secret Box rewards
  • Knights – Secret Box rewards
  • Thanks – Secret Box rewards
  • Assassin – Secret Box rewards
  • LvMeli – Secret Box rewards
  • Festival – Secret Box rewards
  • 7DS100 – Secret Box rewards
  • Sunshine – Secret Box rewards
  • whatcode – Secret Box rewards

Make sure you enter the code as it is in the list.

How to redeem code

Follow this step-by-step guide to redeem code:

  1. Launch the game.
  2. Go through Chapter 1 to use the secret box codes.
  3. Tap the mail icon on the top right of your screen.
  4. Go to the Inbox tab and claim the secret box.
  5. Click on the menu button in the bottom right corner of the screen and select the item storage option.
  6. Go to the one-time use tab, click on the secret box and open it using the codes we provided above.

How To Get 7DS Grand Cross Secret Box Codes?

The secret box codes are released on the official social media by developers. You can follow their Facebook, Twitter, Reddit page, or Discord to get the latest codes and information.
If you don’t want to dig around, you can bookmark this page. We will update this article when we find the latest working codes.

Iris Zheng


Iris is a writer who covers almost everything from beauty to technology, fitness, home decoration and etc. No matter what she wrote, she always brings true and useful information for readers.

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