The primary reason players hunt for this code is the character unit: .
Secret Box campaigns are time-bound promotional events. While legacy boxes might visually remain in a player's inventory as a glitch, Netmarble routinely deactivates the master authentication server data once the anniversary period concludes.
: Navigate to the main tavern screen, open your Menu , and select Item Storage . 7ds grand cross 35 anniversary box code work
The 3.5 Anniversary Box Codes were special promotional codes, often referred to as "Secret Box Codes," released by the developers. These codes were your ticket to unlocking the "Jump Boxes" and claiming a huge amount of free in-game currency, high-tier heroes, and valuable items.
Ensure you have selected the correct server region (Global vs. Asia) on the external redemption site matching your actual player account. The primary reason players hunt for this code
35th Anniversary The Seven Deadly Sins: Grand Cross is not an active event, as the game launched in 2019. You are likely referring to the 3.5 Anniversary 6th Anniversary , which is the current major milestone as of April 2026. Games Press Current Active Codes (April 2026)
Before troubleshooting the code, let's clarify the product. The Seven Deadly Sins: Grand Cross 35th Anniversary Box is a physical merchandise set celebrating the crossover between the game and the magazine’s anniversary. It typically includes: : Navigate to the main tavern screen, open
The (often labeled Secret Box 1-5) are alphanumeric codes released by Netmarble, usually through: Official YouTube livestreams. Official Twitter (X) updates. The 7DS Grand Cross Netmarble Forum . 7DS Grand Cross 3.5 Anniversary Box Code (Working - 2026)
If you receive an error message when entering the code, check for these common issues:
The developers slowly dropped the community codes over several weeks through official live streams, developer notes, or riddle-filled social media posts.
This is an interesting niche topic because the Seven Deadly Sins: Grand Cross (7DSGC) mobile game frequently releases physical “Anniversary Boxes” for Japan/Asia (often via Netmarble’s own shop or partnerships with retailers like Ebiten). The framing, however, stands out— The Seven Deadly Sins manga began in 2012, so a 35th anniversary doesn’t align.