Additionally, a first-come, first-serve coupon code released during that festival was , which provided 3 SSR Evolution Pendants. Recent & Active Gift Codes (April 2026)
A screen will appear asking for a password. Type in the code (e.g., 777INFINITE ).
The in The Seven Deadly Sins: Grand Cross refers to Kodansha's 35th anniversary of Weekly Shōnen Magazine (where the 7DS manga was serialized). Netmarble ran a special login event and coupon campaign around late 2024 – early 2025 (not 2026).
If you are hunting for these specific 3.5 anniversary codes, trying to understand how the sequential secret boxes work, or wondering why certain codes fail, this comprehensive guide explains everything you need to know. 📋 The 3.5 Anniversary Secret Box Codes List
During these celebrations, Netmarble releases special "Secret Box" items in the mailbox that can be opened using secret coupon codes. These boxes are stacked, meaning one box gives you rewards and the code to the next, often leading to free gems, materials, and tickets. 7ds grand cross 35 anniversary box code work
: These codes can only be used once per account.
Sometimes the game logic fails to register inputs instantly. If a valid code fails, close the app completely, relaunch it, and attempt to submit the text string again. If you are looking for current promotions, Share public link
If you see websites or videos claiming a working code from March/April 2026, they are fake, expired, or scams.
The highly anticipated code for the is finally live and fully operational! If you haven't redeemed it yet, now is the time to log in and grab your rewards. The in The Seven Deadly Sins: Grand Cross
Gacha games rely entirely on limited-time urgency to keep their player bases active. If you try entering these codes today, they will fail due to three exact mechanics:
If you still have these boxes in your inventory under the tab, follow these steps to open them: Navigate to your Item Storage . Select the 1-Use tab and find the specific anniversary box.
Understanding this system is key for any player wanting to make the most of future anniversary and festival events in The Seven Deadly Sins: Grand Cross . Always remember to redeem any new codes you find as soon as possible, as they often have short expiration dates.
(For the guaranteed Festival Summon banner). Gems (The premium currency). Make sure to grab these codes before they disappear! 📋 The 3
from late 2022, here is a breakdown of the codes that were historically used for those secret boxes and the latest 7th-anniversary rewards as of April 2026. 3.5th Anniversary Box Codes (Historical)
For players of the popular mobile RPG , the phrase "35 anniversary box code work" has become a common search term, especially for those looking back at past events or finding guides. The number “35” here is a common abbreviation for "3.5", which refers to the game's 3.5th Anniversary celebration. This wasn't a 35-year anniversary, but rather a celebration marking three and a half years since the game's launch. The "box code" is the password needed to open a series of "Secret Boxes" given out during that event.
The world of mobile gaming is no stranger to exclusive loot, but few franchises celebrate legacy quite like The Seven Deadly Sins . To honor the 35th anniversary of Kodansha’s Weekly Shōnen Magazine (where the original manga began serialization in 2012, though the "35th anniversary" branding typically refers to the publisher’s milestone), Netmarble released a special physical "Anniversary Box."
Since you cannot get that box via code now, here’s what actually works: