The wait is finally over! The 3.5 Anniversary celebration for Seven Deadly Sins: Grand Cross is in full swing, and the special box redemption code has been confirmed working for all players.
While the 3.5 Anniversary codes are legacy items, the game frequently releases new codes for current events, such as the countdown. Recent active codes identified in early 2026 include: 777OURSPRING (Provides a selection jewel for Hellb) 777infinite 777flame 777Nightmare 7ds grand cross 35 anniversary box code work
– Rewards vary (Hellbrim selection jewel or 100 legendary seals). 7DS77THANNIV – Special Anniversary Reward. 250109DISCORD7DS – Community Reward. 777INFINITE – General Reward. LIGHTNDARK – General Reward. – 1 Stamina Recovery Potion (April Fool's 2026). – 20 Memory Crystal Boxes (April Fool's 2026). 🛠️ How to Redeem Codes The process differs slightly depending on your device: For Android/PC Beta (bottom right). Choose the coupon banner. Enter your code and check your Apple does not allow in-app coupon entry. You must use the Official Netmarble Coupon Site Enter your Member Code (found in Player Info). Select your Coupon Code ⚠️ Common Issues Expired Codes: Anniversary-specific codes like GC3halffesta The wait is finally over