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CARDArknights: Endfield Codes and Danzai Du Rewards
Looking for free resources in Arknights: Endfield? Redemption codes and version event rewards are still the most direct options. Active codes can grant Originium Prime, Originium Shards, and materials for operator and weapon upgrades, making exploration, combat, and progression easier.
The October 2026 Danzai Du update is coming soon. Besides in-game redemption codes, the official website has launched a version preview page where eligible Administrators can claim Originium Prime, Originium Shards, and upgrade materials.
Below is a roundup of the currently published codes, claiming methods, expired codes, and ways to get more free resources from version events. Code status can change at any time, so rely on the message shown in-game.
Codes to try now (as of October 9)
| Code | Rewards | Restrictions |
|---|---|---|
| ENDFIELDSTEAM | Exclusive avatar frame, Originium Shards, Basic Cognitive Carriers, weapon inspection materials | Check the validity period in-game as soon as possible |
| ENDFIELDGIFT | Originium Prime ×150, Originium Shards ×10,000, Intermediate Battle Records ×20, Weapon Inspection Kits ×20 | No fixed end date has been publicly stated |
| ENDFIELD4PC | Originium Shards ×13,000, Advanced Battle Records ×2, weapon inspection materials ×2 | PC client only |
Rewards, expiration dates, and platform restrictions may be changed by the official team at any time. If a code is expired, already used, or incompatible with your platform, follow the in-game result. Each account can usually redeem a code only once.
Expired codes
| Code | Status |
|---|---|
| ENDFIELDRENEW | Expired; originally valid until August 2026 |
| AKENDFIELDSUB | Subscription event redemption ended on September 9, 2026 |
| ALLFIELD | Old code, expired |
| RETURNOFALL | Old code, expired |
When searching for codes, do not mix old codes with currently usable ones. An old article may still list a code, but that does not mean it remains valid.
Danzai Du version rewards: 1,000 Originium Prime
You can also claim rewards from the official version preview page instead of entering a code.
The official Danzai Du preview page went live on October 6. Eligible Administrators can receive:
Originium Prime ×1,000
Originium Shards ×10,000
Basic Cognitive Carriers ×8
Weapon Inspection Kits ×4
This is different from a normal redemption code. Log in to your account on the official website and click the claim button; do not enter it in the in-game code box.
How to claim:
Open the official version preview page.
Log in to your game account and make sure a character has already been created in-game.
Find and click the Claim Rewards button.
Collect the rewards from your in-game mailbox.
The claim window opens on October 6 and remains available until version maintenance begins. Danzai Du is expected to launch on October 15, so do not wait until maintenance. Each account can claim the preview rewards once per cycle.
How to redeem codes
Codes must be redeemed in-game. Do not enter them on the Kardz top-up page.
Log in to the account that should receive the rewards. Some features require early progression and mailbox access.
Open the menu from the main screen and enter Settings.
Go to Platform & Account → Redemption Code.
Enter or paste the code accurately and confirm. Copying the code is recommended.
After a successful redemption, rewards are sent to the in-game mailbox. Open the message and claim the attachments before they expire.
Other ways to get free resources
Most redemption codes are one-time rewards. For steady progress, combine daily tasks, version events, and map exploration.
Prioritize daily and weekly tasks that provide upgrade materials, currency, or recruitment resources. Version updates usually include limited-time events, exploration content, and milestone rewards, so check the requirements and deadlines first. Chests, hidden areas, and interactive objects around the map can also provide useful resources. Check official announcements regularly, and remember that maintenance compensation and version rewards may be sent to your mailbox with an expiration period.
What is the difference between Originium Prime, Originium Shards, and upgrade materials?
Save Originium Prime first, since it can be used for recruitment and resource exchanges. After claiming codes and version rewards, review your current operator and weapon plans before spending it. Originium Shards support daily progression and various purchases. Cognitive Carriers and Weapon Inspection Kits are upgrade materials, so use them according to your team’s needs. Do not focus only on currency totals; materials and other items matter too.
How to plan resources around Danzai Du
Before the update, review your available resources and upgrade goals to avoid waste.
Recommended order: redeem every active code, claim the official preview rewards, check operator and weapon upgrade gaps, and build your core team first. Then follow the new event tasks and limited-time rewards. Decide whether to spend extra only afterward. If free resources cover your short-term goals, there is no need to force yourself to save or pay. If you have a clear recruitment or pack plan, set a budget first.
International server top-up reference
If free codes and event rewards are not enough, you can check the international server products on Kardz, including monthly passes, custom protocol passes, Originium Prime, personnel support packs, comprehensive talent packs, and recruitment packs. Confirm the product name, server, quantity, and price before ordering.
The general top-up process is to select a product and quantity, log in as required, provide your account and character ID, make payment, and contact support for confirmation if requested. After delivery, log in and check the game. Manual top-up usually takes about 15 minutes, though delays are possible. Google accounts may require a backup verification code. Do not log in during the top-up process, and change your password afterward. Follow the product page for details.
FAQ
Where do I enter a redemption code?
Game menu → Settings → Platform & Account → Redemption Code. Claim the rewards from your mailbox afterward.
Can I redeem codes directly on the website?
Normal codes must be used in-game. Danzai Du preview rewards are claimed after logging in on the website.
Why does the code say it is invalid?
It may be expired, already used, platform-restricted, or entered incorrectly. Check it carefully and follow the in-game message.
Can ENDFIELD4PC be used on mobile?
It is marked for PC only. Redeem it through the PC client.
When do the Danzai Du preview rewards expire?
They are available until version maintenance begins, expected on October 15. Check the official announcement for the final time.
Do rewards go directly to the inventory?
They are usually sent by mail. Open the message and claim the attachments before the mail expires.
What can I buy if free resources are not enough?
You can check monthly passes, custom protocol passes, Originium Prime, and related packs. Use your free rewards first, then confirm the server, contents, and price.
In short, besides checking active codes this month, do not miss the Danzai Du preview rewards: 1,000 Originium Prime, 10,000 Originium Shards, and various materials. Redeem the public codes, claim the preview rewards, clear your mailbox, and follow official announcements for expiration dates and event schedules. If you have a specific recruitment or progression goal, compare the international server products on Kardz afterward.
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