COSM-GAME The Seven Deadly Sins: Grand Cross Coupon Codes for September 2026
The Seven Deadly Sins: Grand Cross Coupon Codes provide progression rewards including Legendary Seals, Diamonds, Anvils, awakening materials, and event items. Netmarble releases coupons through anniversary campaigns, collaboration events, official forum announcements, and dedicated promotional pages, with Global rewards redeemed through its coupon system. COSM-GAME checks those official routes and current redemption evidence daily while preserving historical Secret Box passwords and expired promotions separately.
Codes summary
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The Seven Deadly Sins: Grand Cross Active Codes
9 working codesUse the Active Codes table above for the current Global coupon inventory. Grand Cross coupons can award Diamonds, Legendary Seals, awakening materials, enhancement items, and other progression resources, with each promotion using its own redemption period.
| Code | Rewards | Region | Released | Expires | Info |
|---|---|---|---|---|---|
1,000 Anvils | Global | — | Unknown | ||
77 Legendary Seals + 77 Skip Tickets | Global | Jun 25, 2026 | Jun 24, 2027 | ||
3 True Awakening Coins + 10 Legendary Seals + 100 Primal Will Boxes I + 100 Hero Enhance Potions | Global | May 21, 2026 | May 20, 2027 | ||
1,000 Anvils | Global | Apr 23, 2026 | Apr 22, 2027 | ||
100 Legendary Seals or 1 LR [Reincarnation of Revenge] Fairy Helbram | Global | Mar 26, 2026 | Mar 25, 2027 | ||
77 SSR Evolution Pendants | Global | Feb 26, 2026 | Feb 25, 2027 | ||
77 Costume Enhance Materials Boxes | Global | Jan 29, 2026 | Jan 28, 2027 | ||
100 Super Awakening Coins | Global | Jan 5, 2026 | Dec 25, 2026 | ||
30 Diamonds | Global | Nov 20, 2025 | Nov 19, 2026 |
Expired Codes
79 archivedThe Expired Codes table keeps older Global promotional coupons and historical Secret Box passwords for reference. Regional-only coupon strings are excluded from this Global post, and an archived code should not return to the active list unless fresh evidence confirms that the exact string works again.
| Code | Rewards | Region | Released | Expired | Info |
|---|---|---|---|---|---|
10 Diamonds | Global | — | May 14, 2026 | ||
30 Diamonds | Global | — | Feb 26, 2026 | ||
10 Diamonds + 10 Legendary Seals + 10 Super Awakening Coins + 15 SSR Evolution Pendants | Global | — | Dec 25, 2025 | ||
50 SSR Evolution Pendants | Global | Dec 28, 2023 | Jan 25, 2024 | ||
10 Diamonds | Global | — | Nov 16, 2023 | ||
1 SSR Ticket | Global | Aug 16, 2022 | Jul 27, 2023 | ||
10 Diamonds | Global | Aug 1, 2022 | Jul 27, 2023 | ||
5 Super Awakening Coins | Global | May 25, 2023 | Jun 29, 2023 | ||
1,000,000 Gold | Global | May 25, 2023 | Jun 29, 2023 | ||
1 SSR Ticket | Global | May 25, 2023 | Jun 29, 2023 | ||
3 SSR Evolution Pendants | Global | May 25, 2023 | Jun 29, 2023 | ||
10 Stamina Potions | Global | May 25, 2023 | Jun 29, 2023 | ||
3 SSR Evolution Pendants | Global | — | Nov 29, 2022 | ||
10 Diamonds | Global | May 21, 2026 | Unknown | ||
1 UR Evolution Pendant | Global | — | Unknown | ||
10 Diamonds | Global | — | Unknown | ||
1 Stamina Potion | Global | — | Unknown | ||
3 SSR Evolution Pendants | Global | — | Unknown | ||
10 Diamonds | Global | — | Unknown | ||
10 Diamonds | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
10 Diamonds | Global | — | Unknown | ||
3 UR Evolution Pendants | Global | — | Unknown | ||
30 Super Awakening Coins | Global | — | Unknown | ||
30 Diamonds | Global | — | Unknown | ||
50 Diamonds | Global | — | Unknown | ||
50 SSR Evolution Pendants | Global | — | Unknown | ||
5 SSR Evolution Pendants | Global | — | Unknown | ||
5 Super Awakening Coins | Global | — | Unknown | ||
100 Demon's Energy | Global | — | Unknown | ||
10 Diamonds | Global | — | Unknown | ||
100 Demonic Beast Bellmoth's Cores | Global | — | Unknown | ||
5 Super Awakening Coins | Global | — | Unknown | ||
10 Diamonds | Global | — | Unknown | ||
30 Diamonds | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
3 SSR Evolution Pendants | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
1 5 Star Hero Enhance Potion | Global | — | Unknown | ||
Not disclosed | Global | Nov 23, 2022 | Unknown | ||
Not disclosed | Global | Feb 8, 2022 | Unknown | ||
1 SSR Ticket | Global | Aug 27, 2021 | Unknown | ||
Not disclosed | Global | Sep 2, 2021 | Unknown | ||
Not disclosed | Global | Sep 10, 2021 | Unknown | ||
Not disclosed | Global | Sep 10, 2021 | Unknown | ||
Not disclosed | Global | — | Unknown | ||
1,000,000 Gold | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
3 Super Awakening Coins | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | Feb 16, 2021 | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | Nov 23, 2022 | Unknown | ||
Not disclosed | Global | Nov 23, 2022 | Unknown | ||
Not disclosed | Global | Nov 23, 2022 | Unknown | ||
Not disclosed | Global | Nov 23, 2022 | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | Nov 24, 2020 | Unknown | ||
Not disclosed | Global | Dec 1, 2020 | Unknown | ||
Not disclosed | Global | Dec 8, 2020 | Unknown | ||
Not disclosed | Global | Dec 15, 2020 | Unknown | ||
Not disclosed | Global | Dec 22, 2020 | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown | ||
5 Super Awakening Coins | Global | — | Unknown | ||
50 SSR Evolution Pendants | Global | — | Unknown | ||
Not disclosed | Global | — | Unknown |
Redemption Guide
4 platformsGrand Cross supports Netmarble's official web coupon system. Android users can also redeem eligible coupons through the in-game coupon menu after completing the opening tutorial.
Member Code belonging to the game account that should receive the reward.Use.Mail to collect the reward.Menu.Misc.Coupons.Mail and claim the delivered reward.Member Code from the Grand Cross account information.Use.Mail to collect the reward.Member Code belonging to the PC-linked game data.Use.Mail and collect the reward.Code Rules & Troubleshooting
Each coupon reward can only be claimed once per account. If a coupon fails, confirm that the exact string was entered correctly, the coupon has not already been used, and its redemption period has not ended.
Check the Member Code and server before submitting a web redemption. Netmarble warns that rewards sent using incorrect account information may not be recoverable.
Successful coupon rewards are delivered through the in-game Mail, and delivery can take some time. If the reward does not appear immediately, reopen the game and check the same account and server again.
Historical Secret Box passwords use a different legacy reward system and are kept only in the expired archive for reference.
New Code Announcements
Netmarble can publish Grand Cross coupons through anniversary campaigns, collaboration events, the official website and forum, social channels, videos, Discord, and dedicated event pages. Always use the redemption deadline published for the exact campaign when one is available.
Trailer, Screenshots & Media
The existing Perfect 7 anniversary video and campaign gallery remain relevant to the long-running coupon archive and the anniversary events that produced several of the current Global rewards.
The Seven Deadly Sins: Grand Cross Codes FAQ
6 questionsCommon questions about redeeming The Seven Deadly Sins: Grand Cross codes.
Coupon rewards are tied to the account information used when the coupon is submitted. Changing devices does not create a second claim for the same coupon on that account.
No. Netmarble limits each coupon reward to one claim per account, so moving between supported devices does not reset coupon eligibility. Use the same linked game data when checking whether the reward arrived.
The official coupon page warns that rewards sent using incorrect server or membership information may not be recoverable. Check both fields before submitting the coupon.
No. Secret Box passwords belong to older item-specific campaigns and use the Secret Box system rather than the normal coupon flow. They are useful as historical references but should not be mixed into the current working coupon list.
Netmarble notes that mailbox delivery may not be immediate after a coupon is accepted. Reopen the game or log back in, and PC users can restart the PC client before checking the in-game Mail again.
No. Netmarble states that expired coupons cannot be redeemed through the official coupon system. A previously used coupon is also unavailable for another claim on the same account.
Sources
12 officialCode data and redemption details are verified against these official and trusted sources.
