Arknights: Endfield Codes: Active Rewards & How to Redeem

Working Arknights: Endfield codes are the fastest way to bank Oroberyl, T-Creds, and free pulls without grinding commissions, and they take roughly forty seconds to redeem through the in-game Exchange Code menu. Because each code has a fixed expiration window and each account can only claim it once, missing a drop means the reward simply disappears from your mailbox thirty days later. This guide tracks every currently active Arknights: Endfield code, the reward tier behind each one, and the exact path to redeem them on PC, mobile, and PS5.

Current Working Arknights: Endfield Codes for October 2026

Every month the developer drops a fresh batch of Arknights: Endfield codes tied to livestreams, anniversaries, and social milestones, and October 2026 is no exception. The table below lists every active code verified at the time of writing, the reward tier it unlocks, and the expiration window community trackers have logged. Because the redeem path is identical for every entry, you can paste all of them in a single sitting in under a minute.

A few patterns are worth noting before you start pasting. First, anniversary and milestone codes tend to carry the highest Oroberyl value because the developer is using them to celebrate player counts rather than to seed early progression, so they almost always beat patch-note drops on a per-code basis. Second, event-tied codes expire faster than livestream codes because they are scoped to a single banner window — SALVAGEREWARD above, for example, will disappear the moment the Wuling banner rotates out, even if you do not redeem it. Third, every code listed is single-use per account, so a second redemption on the same UID simply returns an error rather than failing silently.

If you want a running log of which codes have already cycled out, the expired codes archive keeps a public history of every drop that has been retired, including the original reward values, so you can tell at a glance whether a rumored code is genuinely new or just a recycled label.

How to Redeem Arknights: Endfield Codes In-Game

The redeem flow is identical across PC, mobile, and PS5 because it lives inside the in-game settings menu rather than a platform store, and the same mailbox receives the reward regardless of where you typed the code. The five steps below are the canonical path, and they match the official documentation published on the Game8's Endfield page on Echoing Bell of an Old City.

Step-by-Step Redemption Path

1. Boot the game and open the main menu by pressing Esc on PC, the Start button on PS5, or the hamburger icon in the top-right corner on mobile.

2. Navigate to Settings at the bottom of the menu list. The icon is a small gear and it sits below the operator and squad tabs.

3. Select Platform and Account, the third sub-tab inside Settings, which holds every account-level action including Exchange Code, Server Select, and Customer Service.

4. Choose the Exchange Code entry, paste the code into the text field, and confirm. The game validates the string against the active list immediately.

5. Open your in-game mailbox from the top-right bell icon, then claim the reward. The reward itself expires in roughly thirty days if left unclaimed, which is a common silent-loss point reported by players.

Common Redemption Errors and Fixes

Three errors account for the vast majority of failed redemptions, and they are all easy to diagnose once you know what the message actually means. The first is the "code has expired" string, which fires whenever a code has been pulled from the active list even if you are inside the originally advertised window — community trackers usually catch the removal within hours, but a short lag is normal. The second is the "code already redeemed" string, which means the same UID has already claimed that exact code, and there is no workaround because the drop is per-account. The third is the "invalid code" string, which almost always points to a typo, a stray space at the end of the string, or a region-restricted code that was issued for a different server cluster.

A wider troubleshooting matrix for codes that refuse to work — including the difference between "invalid" and "expired," region locks, and the daily-code reset timer — is covered in detail in the free pulls and troubleshooting guide. That guide also covers the specific case of sticker codes and Arms Insp Kit drops, which use a slightly different mailbox flag and are easy to miss if you only check the standard reward notification.

Where to Find New Arknights: Endfield Codes as They Drop

Because the developer does not maintain a single public code page, the active Arknights: Endfield code list lives across several channels, and the trick is knowing which channel is most reliable for which reward tier. The four sources below are the ones community trackers consistently rank highest for freshness, and each one has a specific reason it tends to beat the others on a particular category of drop.

Livestream Drops

Every major version livestream — typically the Friday before a six-week version cycle — bundles a fresh code into the closing segment, and the reward tier scales with the patch's headline feature. Anniversary and half-anniversary streams are the ones to watch, because they tend to bundle a 6-star selector alongside the standard Oroberyl. Livestream codes almost always expire inside two weeks, so they are a high-priority redeem target.

Where New Codes Get Announced First

The official X account, the Discord announcement channel, and the in-game newsletter each drop short-window codes with different cadences. Discord tends to surface community-milestone codes first, X tends to break patch-note codes, and the newsletter is the only place where regional events get localized drops. Subscribing to all three means you will see every code, but the volume of noise is significant.

In-Game Mail and Patch Notes

Some drops are pushed directly to your in-game mailbox rather than published as a code at all, and the only signal you get is a small red dot on the bell icon. Patch-note codes are also sometimes published on the official site but not pushed to social media, which is why checking the patch notes page directly on patch day is a higher-yield habit than scrolling X. The pre-registration reward channel, which is still paying out extended rewards in late 2026, runs on a similar in-mail path and is worth checking if you started the game after the original campaign ended.

Community Trackers and Tier-3 Aggregators

Reddit threads, the r/Endfield Discord, and tier-3 aggregator sites all repost codes within minutes of an official drop, and they are useful as a backup channel when you miss the primary window. The tradeoff is that they sometimes carry codes that are region-locked or already expired, so treat them as a "second pair of eyes" rather than a primary source. A live tracker sheet is the cleanest pattern, because it tells you both the code and its expiration in the same view.

Comparing Code Reward Tiers by Value

Not every code is worth the same effort, and a quick value check before you paste a string saves time when you are sorting through a flood of expired and active entries. The table below ranks the five active code tiers by Oroberyl-equivalent value using the in-game shop conversion rate, which is the cleanest way to compare drops that mix Oroberyl, T-Creds, and Headhunt Permits in a single bundle.

The Oroberyl equivalent is calculated using the standard shop rate of 1 Oroberyl per 100 T-Creds, which is the closest official conversion anchor in the in-game economy. Headhunt Permits are valued at 180 Oroberyl each because that is the going rate in the standard banner shop, and a 10-permit bundle is therefore worth more than a 200-Oroberyl lump sum on a straight-pull comparison. If you are saving for a specific limited banner, the multi-permit codes are the ones to prioritize, because they pull double duty as both a pity-filler and a free-pull source.

Maximizing the Value of Every Redeemed Reward

Redeeming the code is only the first half of the loop, and the second half is making sure the reward lands in the right place at the right time. Because rewards expire inside the mailbox after roughly thirty days, an uncollected code is functionally identical to a code you never redeemed, and the most common silent loss reported by players is exactly that — the bell icon gets ignored, and the reward quietly cycles out.

Prioritizing Oroberyl Over T-Creds

If you are still building your roster, spend Oroberyl on the limited banner first because the six-star pity bracket is the only place the currency compounds, while T-Creds can always be earned through commissions and daily loops. If you have already locked in your roster, the answer flips: T-Creds feed the operator talent and weapon refinement loops, both of which are harder to farm than Oroberyl once you hit the soft endgame wall.

Stacking Codes With Version-Cycle Free Pulls

The Oroberyl you bank from codes stacks with every other free-pull source the version cycle pays out, and the total stack across a single six-week patch is large enough to push you into a guaranteed 6-star pull if you redeem every available channel. A useful pattern is to redeem all your codes on day one of the patch so the Oroberyl lands in the bank before the banner pity counter starts, and to delay any big spend until the second half of the cycle so you can react to the limited-banner reveal.

Avoiding the Mailbox Expiration Trap

A simple fix for the thirty-day mailbox expiration is to set a calendar reminder for any reward you do not plan to claim immediately, because the in-game bell icon does not push a notification when a mail is about to cycle out. The other common trap is claiming the reward into the wrong account on a cross-save setup, which is recoverable but requires a customer-service ticket rather than a menu action. If you are on multiple platforms, always confirm the UID in the Settings → Platform and Account tab before you paste a high-value code.

Troubleshooting Codes That Refuse to Redeem

Even when a code is genuinely active and your account is eligible, the redeem flow can still return an error, and the cause is almost always one of three things. The matrix below maps the most common error strings to their actual cause and the fix that works in practice.

A wider net of community-reported edge cases — including the case of codes that work on mobile but not on PC, codes that require a minimum operator level, and codes that fail on cross-save accounts — is tracked in the free pulls troubleshooting guide, which is the right place to start if your error is not in the table above.

Planning Around the Version Cycle for Maximum Stacking

Because every Arknights: Endfield code is part of a larger free-pull economy that also includes patch compensation, login bonuses, and event rewards, the highest-yield approach is to plan redemptions around the version cycle rather than treating each code as an isolated event. A typical six-week version cycle in 2026 pays out a livestream code, a patch-note code, at least one social-channel code, and a small handful of in-mail consolation drops, and stacking them properly is the difference between a single 10-pull and a guaranteed 6-star.

The cleanest pattern is to redeem every code on the first day of the patch, because that is also when the patch compensation mail lands, and stacking the two mail sources in the same day lets you funnel every reward into a single banner pity push. The exception is the pre-registration extension channel, which pays out on a separate cadence tied to account age rather than to the version cycle, and which is worth checking regardless of where you are in the patch. A full breakdown of the pre-registration reward stack, including the free 6-star selector, is in the pre-registration rewards guide, which is the cleanest single reference for the largest single free-pull event in the game's history.

Frequently Asked Questions

Where do I enter Arknights: Endfield codes?

Open the in-game menu, go to Settings, select Platform and Account, and choose the Exchange Code entry. Paste the active Arknights: Endfield code into the text field, confirm, and the reward will land in your in-game mailbox within seconds. The exact same path works on PC, mobile, and PS5.

Do Arknights: Endfield codes expire?

Yes, every Arknights: Endfield code has a fixed expiration window that ranges from two weeks for livestream drops to roughly four weeks for patch-note drops. The reward itself also expires in the in-game mailbox after about thirty days, so an unclaimed code is functionally the same as a missed one.

Can I redeem the same code twice?

No, each account can only redeem a given Arknights: Endfield code once, and a second attempt on the same UID returns a "code already redeemed" error. Cross-save accounts share the UID across platforms, so a code claimed on PC will not be claimable again on mobile or PS5.

Why is my Arknights: Endfield code not working?

The most common causes are a typo, a trailing space, an expired code, a region lock, or a code that has already been redeemed on the same account. Re-paste from a verified source, confirm the expiration date on a live tracker, and check whether the code is region-restricted before trying again.

Are Arknights: Endfield codes free?

Yes, every working Arknights: Endfield code is free to redeem, and the rewards range from small T-Cred bundles to anniversary-level Oroberyl and Headhunt Permit stacks. The only cost is the time it takes to copy the string and paste it through the Exchange Code menu, which is roughly forty seconds per code.