COSM-GAME MONGIL: STAR DIVE Redemption Codes for September 2026
MONGIL: STAR DIVE Redemption Codes can give you Keys, Gold, Compass of Promise, upgrade materials, artifacts, and Monsterlings. Netmarble has distributed codes through Developer Lounge broadcasts, game updates, official community events, and launch promotions, with some broadcast codes carrying short redemption windows. COSM-GAME checks those official channels and the redemption service daily so working rewards stay current while expired promotions remain documented for reference.
Codes summary
On this page
MONGIL: STAR DIVE Active Codes
13 working codesThe working codes above cover launch promotions, community rewards, and update campaigns that still redeem through the global service. Enter them exactly as issued and collect successful claims from in-game Mail.
| Code | Rewards | Region | Released | Expires | Info |
|---|---|---|---|---|---|
10 Premium Salmon Puree + 1 Purple Upgrade Stone + 3 Compasses of Promise | Global | May 26, 2026 | Unknown | ||
10 Premium Salmon Puree + 1 Purple Upgrade Stone + 3 Compasses of Promise | Global | May 22, 2026 | Unknown | ||
1 Green Cappy Papa + 25 Keys + 10,000 Gold | Global | Apr 24, 2026 | Unknown | ||
1 Uncle Cappy + 10,000 Gold | Global | Apr 15, 2026 | Unknown | ||
1 Ring Slime | Global | Apr 15, 2026 | Unknown | ||
1 Leafymander | Global | Apr 15, 2026 | Unknown | ||
1 Goblin Recruit | Global | Apr 15, 2026 | Unknown | ||
1 Swellymander | Global | Apr 15, 2026 | Unknown | ||
1 White Wolf Warrior | Global | Apr 14, 2026 | Unknown | ||
1 Brown Cappy + 1 Spark Slime + 1 Forkmugger | Global | Apr 13, 2026 | Unknown | ||
1 Green Cappy + 10,000 Gold | Global | Apr 13, 2026 | Unknown | ||
1 Overflowing Love | Global | Apr 8, 2026 | Unknown | ||
30 Starlight Crystals + 3 Glimmering Stardust + 300,000 Gold | Global | Mar 15, 2026 | Unknown |
Expired Codes
11 archivedExpired promotions no longer redeem through the official service. This section preserves their reward history so you can see what older campaigns offered.
| Code | Rewards | Region | Released | Expired | Info |
|---|---|---|---|---|---|
150 Keys + 10 Premium Salmon Puree + 3 Compasses of Promise | Global | Sep 2, 2026 | Sep 8, 2026 | ||
150 Keys + 10 Premium Salmon Puree + 3 Compasses of Promise | Global | Aug 12, 2026 | Aug 18, 2026 | ||
150 Keys + 10 Premium Salmon Puree + 3 Compasses of Promise | Global | Aug 12, 2026 | Aug 18, 2026 | ||
150 Keys + 10 Premium Salmon Puree + 3 Compasses of Promise | Global | Jul 8, 2026 | Jul 27, 2026 | ||
150 Keys + 10 Premium Salmon Puree + 3 Compasses of Promise | Global | Jul 1, 2026 | Jul 27, 2026 | ||
100 Keys + 3 Conquest Entry Tickets + 3 Compasses of Promise | Global | Jun 16, 2026 | Jul 6, 2026 | ||
100 Keys + 3 Conquest Entry Tickets + 3 Compasses of Promise | Global | Jun 16, 2026 | Jul 6, 2026 | ||
10 Premium Salmon Puree + 1 Purple Upgrade Stone + 3 Compasses of Promise | Global | May 22, 2026 | Jun 16, 2026 | ||
1 Scar + 1 White Wolf Warrior + 1 Spark Slime | Global | Apr 10, 2026 | May 13, 2026 | ||
1 Blue Upgrade Stone | Global | Apr 30, 2026 | May 7, 2026 | ||
10 Compasses of Promise | Global | Apr 24, 2026 | May 7, 2026 |
Redemption Guide
3 platformsYou can redeem through Netmarble's official web form, or use the in-game Redemption Code menu where it is available. Make sure the Player ID belongs to the account that should receive the reward before you submit the code.
Menu, Settings, Other, then Player ID, and copy that value into Enter Member code.Enter Coupon code.Use.Mail and collect the reward.Menu.Settings, choose Other, then scroll to Customer Support.Redemption Code, enter the code exactly as issued, then select Use.Mail and collect the reward.Menu.Settings, choose Other, then scroll to Customer Support.Redemption Code, enter the code exactly as issued, then select Use.Mail and collect the reward.Code Rules & Troubleshooting
If a code is rejected, recheck the exact string, remove accidental spaces, and confirm that its promotional window is still open. A code that has already been used on the account cannot be redeemed again.
For web redemption, use Player ID as the Member code. If the in-game redemption option is not available on your device, use the official web form with the same account's Player ID.
New Code Announcements
New MONGIL: STAR DIVE codes have appeared through Developer Lounge broadcasts, the official forum, Discord, social channels, update promotions, and launch events. Watch the official YouTube channel and community announcements around major broadcasts and updates because some codes have short redemption windows.
Trailer, Screenshots & Media
The selected media covers the global launch, major character updates, the game world, and the official adventure trailer.
MONGIL: STAR DIVE Codes FAQ
9 questionsCommon questions about redeeming MONGIL: STAR DIVE codes.
Yes. Use the official web redemption page in a browser with your Player ID and the code. This lets you redeem without relying on an in-game redemption menu on iOS.
The Member code is your Player ID, not your Friend Code. Copy the Player ID from your game account so the reward is delivered to the intended account.
No separate server selector appears on the official form. The form uses your Member code, which is your Player ID, together with the Coupon code to identify the redemption.
Rewards are delivered through in-game Mail and may take a short while to arrive. If a successful redemption is still missing, restart the game and check Mail again.
The official redemption flow may require you to re-enter the Member code for another submission. Keep your Player ID available to copy so you do not accidentally enter a different account identifier.
No. Some promotional and broadcast codes are issued with a fixed redemption window, while others do not publish a firm cutoff. A code without a disclosed deadline can still stop working later.
It can happen if Netmarble reopens or reactivates a promotion, but an old code should not be assumed to work again automatically. Use current redemption evidence before treating a previously expired code as active.
A supported Global code can be submitted through the available web or in-game method for your account. Changing the method does not create a second claim if the code has already been redeemed on that account.
Yes, but the reward may not appear in Mail immediately while the game remains open. Reopen Mail or restart the game if a successful web redemption does not show up.
Sources
11 officialCode data and redemption details are verified against these official and trusted sources.
