Netmarble distributes unique, single-use or limited-use codes specifically to create urgency. If you see a website promising a “100% working unlimited 7ds grand cross 3.5 anniversary box code generator,” it is a scam. Do not enter your login details there.
3.5 Anniversary Box The Seven Deadly Sins: Grand Cross was a special event item that required specific secret codes to open. Based on community records from the event period (late 2022), here are the codes that were used to unlock these rewards: 3.5 Anniversary Secret Box Codes GC3halffesta Peccatum1866 royalblood Netmarble Forums How to Redeem Box Codes 7ds grand cross 3.5 anniversary box code
The event, celebrated as the "Ultimate Festival," introduced a unique series of Secret Boxes that required specific passwords to unlock. These boxes were distributed sequentially, with each one containing valuable materials and the next locked box in the chain. 3.5 Anniversary Secret Box Codes celebrated as the "Ultimate Festival
Beyond the boxes, the 3.5 Anniversary was famous for introducing the , which allowed players to quickly acquire fully leveled SSR heroes and materials. It also featured the debut of Ultimate Escanor , the game's first "Light" attribute festival unit, who was guaranteed at 900 loyalty points. Netmarble distributes unique
However, the most prominent code circulated during the 3.5 Anniversary period (and one that veteran players will remember fondly) was:
⚠️ Be cautious of third-party sellers still listing “3.5 Anniversary Box Code” in 2026 — they are almost certainly invalid.
Redeeming a code for Grand Cross is not done inside the game client. You must use the official Netmarble coupon website. Follow these steps exactly: