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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchThere is no confirmed complete list of active Duet Night Abyss codes for October 7, 2026. A guide updated October 3 lists ACNPLO with 30,000 Gold, 30 Secret Letter Clue, and 200 Carmine Globule, but the available information does not confirm that it still works on October 7. Treat it as unverified until the game accepts it. “Secret Letter Clue” is an in-game reward item, not a code.
Duet Night Abyss codes listed in October 2026
The available code information is not enough to label any code confirmed active on October 7, 2026. Pocket Gamer’s October 3, 2026 guide lists the following code and rewards, but does not establish its validity on October 7 or provide a confirmed expiry time, timezone, server restriction, or platform eligibility.
| Code | Listed rewards | Status on October 7, 2026 | Expiry and eligibility |
|---|---|---|---|
ACNPLO |
30,000 Gold; 30 Secret Letter Clue; 200 Carmine Globule | Unverified. Pocket Gamer listed it on October 3, 2026; that listing does not confirm it remained redeemable on October 7. | Expiry date and time, timezone, server restrictions, and platform restrictions not stated in the available listing. Pocket Gamer’s Duet Night Abyss codes guide. |
Because code status can change and no current official code roster is established here, try the code in the game rather than relying on an “active” label. A failed redemption may mean the code expired, was already used, or is ineligible for your account; the available listing does not specify which conditions apply to ACNPLO.
How to redeem a Duet Night Abyss code
A third-party guide describes an in-game redemption route. Menu wording may differ by client version, so use the equivalent redemption field if the labels are not identical.
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- Open Settings in Duet Night Abyss.
- Open General Settings.
- Find the redemption box, enter the code, and select Redeem.
- Check the in-game result or reward delivery. If the client rejects the code, confirm the spelling and check whether it has expired or already been claimed.
The available guidance describes an in-game route; it does not establish that a separate web redemption site is available. Pocket Gamer’s code guide is the source for this menu path.
What “Secret Letter Clue” means
Secret Letter Clue is an in-game item or reward term. It is not a redeem code. A code is a text string entered through the game’s redemption interface; an item or character reward rotation changes what players can obtain in-game.
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The March 2026 Secret Letter rotation
In a notice dated March 1, the Duet Night Abyss Team announced changes taking effect after March 10, 2026, at 10:00 server time. These were reward rotations, not a code release:
- Yuming and Venial Sinscales replaced Zhiliu and Eternal Farewell as limited-time Immersive Theatre rewards.
- Zhiliu replaced Truffle and Filbert, Eternal Farewell replaced Arclight Apocalypses, and Trigon Muse replaced Daybreak Hymn as Nocturnal Echoes challenge rewards.
- Truffle and Filbert, Arclight Apocalypses, and Daybreak Hymn became permanently exchangeable in the Secret Letter shop.
- Nocturnal Echoes weekly reward progress did not reset as part of the rotation.
These details describe the announced March rotation; they do not establish which rewards are currently limited or available. Official Duet Night Abyss Steam news.
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- Room type: Living Room
Why a March 2026 code list is not established
A page titled for March 2026 is not sufficient evidence of which codes were active in March. Game8’s result uses a March heading but says its count of 15 codes was current as of April 15, 2026; the captured result does not expose the code strings. It also says three codes were exclusive to the official launcher. That information cannot verify an exact March list or establish October availability. Game8’s Duet Night Abyss guide archive.
The official Steam news results show September 2026 updates and Secret Letter rotations, but do not provide a current redemption-code roster. The official site provides game and download information rather than a code list. Check dated official announcements and the in-game redemption result for current confirmation. Official Steam news · Official Duet Night Abyss site.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
