Arknights: Endfield 1.6 Banners, Events & Redeem Codes
By Gacha Countdown
Version 1.6 — “Sanctuary of Ink”
Last updated: October 10, 2026
Arknights: Endfield Version 1.6, “Sanctuary of Ink,” launches on October 15, 2026 after the version update and maintenance (server time; Asia UTC+8, Americas/Europe UTC-5). The update is the next Core Chapter Version and was detailed in the official Special Program that aired on October 6, 2026 at 19:30 (UTC+8). It adds the new 6★ operator Si on the Rejuvenation Chartered Headhunting banner, the 6★ Argent Flow in Phase 2, and a Tangtang RE-Factor rerun.
Version 1.6 also launches the game on Steam the same day, with cross-platform account sync, and adds the new Si’s Painting region, an inn-management mode, new events, Contingency Contract content, and free rewards.
📌 Version 1.6 at a Glance
| Information | Details |
|---|---|
| Version | 1.6 (Core Chapter Version) |
| Title | Sanctuary of Ink |
| Release Date | October 15, 2026, after version update and maintenance |
| Version End | Before next version update and maintenance (trackers: ~Nov 26) |
| New 6★ Operator | Si |
| New 6★ Operator | Argent Flow (Phase 2, November 5) |
| RE-Factor Rerun | Tangtang (October 29) |
| Main Banner | Rejuvenation (Si rate-up) → November 5, 11:59 |
| Steam Launch | October 15, 2026 (cross-platform progression) |
| Server Time Zones | Asia UTC+8; Americas/Europe UTC-5 |
The October 15 launch and Steam release were confirmed in the October 6 Special Program and GRYPHLINE’s press release. GRYPHLINE’s official wording for the version end is “Before version update and maintenance” — secondary schedule trackers point to a November 26, 2026 maintenance window, but that calendar date is not official.
Status note: This is a preview article published before launch (October 10, 2026). Facts below are drawn from the official Special Program, GRYPHLINE’s press release and New Version Guide announcement, plus clearly labeled secondary sources. In-game verification happens on October 15.
🗓️ Arknights: Endfield 1.6 Banner Schedule
Version 1.6 runs three operator banners plus three Arsenal issues.
Phase 1 — [Rejuvenation] Chartered Headhunting
After the Version 1.6 update (October 15) → November 5, 2026, 11:59 (server time)
Rate-Up Operator
6★: Si
- Status: NEW
- Class: Supporter — Cryo element
- Affiliation: 13th Sui Proxy (per the official Special Program)
Details
- Opens with the version update; exact start time depends on maintenance completion
- Currency: Chartered HH Permit or Oroberyls
- Her signature 6★ weapon Jade Vessel opens on the Seal of Jade Arsenal Issue the same day
RE-Factor — [Ancestral Spring Flows Anew] RE-Factor Headhunting #1
October 29, 2026, 12:00 (server time) → November 19, 2026, 11:59 (server time)
Rate-Up Operator
6★: Tangtang
- Status: RERUN (kit details not covered here)
RE-Factor Pity Rules (from Version 1.5 official rules)
- 5★+ guaranteed within 10 pulls
- 6★ guaranteed within 80 pulls (shared across RE-Factor banners)
- Free 10× at 30 / 60 / 90 pulls (once per series name)
- Featured 6★ guaranteed within first 120 pulls (once per series name)
- Token every 240 pulls
- Chartered HH Permit is usable in RE-Factor Headhunting — but RE-Factor pulls do not build Chartered pity
Tangtang’s rerun overlaps both Si (until November 5) and Argent Flow (from November 5), so plan pulls accordingly.
Phase 2 — [The Hearth Fire Beckons the Starry Flow] Chartered Headhunting
November 5, 2026, 12:00 (server time) → before next version update and maintenance
Rate-Up Operator
6★: Argent Flow
- Status: NEW
- Class: Guard — Electric element
- Affiliation: Hongshan Academy of Sciences (secondary sources)
Naming note: Pre-program leaks listed the Phase 2 operator as “Ye Minghui.” The official English reveal uses Argent Flow; the program never used the leaked name.
Details
- Opens at 12:00 on November 5, right as Si’s banner ends at 11:59
- His signature 6★ weapon Lunar Calling opens on the Moongleam Arsenal Issue the same day
- End date: official wording is “Before version update and maintenance” — trackers estimate November 25, 2026, 11:59 (unofficial)
Arsenal Issues (Weapon Banners)
| Issue | Weapon | Class | Opens | Availability |
|---|---|---|---|---|
| Seal of Jade Issue | Jade Vessel (6★) | Greatsword | Oct 15, after maintenance | Ends after 3 Chartered HH banners from Rejuvenation |
| Tender Sprig Issue #1 | Brigand’s Calling (6★) | Handcannon | Oct 29, 12:00 | Nov 19, 11:59 (with Tangtang RE-Factor) |
| Moongleam Issue | Lunar Calling (6★) | Sword | Nov 5, 12:00 | Ends after 3 Chartered HH banners from Hearth Fire |
Weapon trait details (secondary source: EndSync, following the official New Version Guide):
- Jade Vessel — Traits: Intellect, Cryo DMG, Efficacy
- Lunar Calling — Traits: Will Boost, Attack Boost, Infliction
⚡ Version 1.6 Operators
Version 1.6 introduces two new 6★ operators and one rerun:
| Operator | Rank | Class | Element | Acquisition | Status |
|---|---|---|---|---|---|
| Si | 6 | Supporter | Cryo | Rejuvenation banner (Oct 15) | NEW |
| Argent Flow | 6 | Guard | Electric | Hearth Fire banner (Nov 5) | NEW |
| Tangtang | 6 | — | — | Ancestral Spring RE-Factor (Oct 29) | RERUN |
⚡ Si — 6★ Cryo Supporter
Si is the headline new operator of Version 1.6 and the rate-up on Rejuvenation. She is the 13th Sui Proxy, and the version’s story takes place inside her ink painting.
Per secondary reports summarizing the official program (Game8, gamsgo), her kit centers on Inksoul control, stored Fixed DMG, and Cryo/Heat team buffs. Full skill numbers were not available to this article at publication time — wait for in-game tooltips on October 15.
Si Build Overview
Build note: The following is secondary reporting from community sources summarizing the Special Program and early theorycrafting (checked October 10, 2026). These are not official GRYPHLINE recommendations and may shift with live balance. No verified endgame builds exist yet.
Reported role (secondary):
- Cryo support / team buffer
- Fixed DMG enabler
Signature weapon (official banner):
- Jade Vessel (6★ Greatsword, Seal of Jade Issue)
Detailed stat priorities, essences, and gear sets are intentionally omitted until verified in-game — no reliable secondary build guide was available at publication.
⚡ Argent Flow — 6★ Electric Guard
Argent Flow is the Phase 2 new operator and the rate-up on The Hearth Fire Beckons the Starry Flow. Per secondary reports, he is a mounted fighter from Hongshan’s Academy of Sciences.
Per secondary reports summarizing the official program (gamsgo, EndSync), his kit features mounted charges, Vulnerability, Electrification, and Crush bursts — an Electric/Physical enabler with a sunderization-style burst window. Full skill numbers were not available at publication time.
Argent Flow Build Overview
Build note: The following is secondary reporting only (checked October 10, 2026). Not official GRYPHLINE recommendations. Wait for October 15 in-game data before committing resources.
Reported role (secondary):
- Electric main DPS / enabler
- Vulnerability applicator
Signature weapon (official banner):
- Lunar Calling (6★ Sword, Moongleam Issue)
Detailed stat priorities, essences, and gear sets are intentionally omitted until verified in-game.
🎁 Version 1.6 Free Rewards
Version 1.6 includes several free reward tracks — two of them are claimable right now, before launch.
New Version Guide Page Rewards (Claim Before Oct 15!)
GRYPHLINE’s official [Sanctuary of Ink] New Version Guide page went live on October 6, 2026 at 20:00 (UTC+8). Logging in with your game account and completing character creation lets you claim:
- Oroberyl ×1,000
- T-Creds ×10,000
- Elementary Cognitive Carrier ×8
- Arms INSP Set ×4
Claim window: from the page release until before the Version 1.6 update and maintenance — once maintenance begins, the claim button disappears. Rewards are delivered to your in-game mail. One claim per account.
Source: official announcement (endfield.gryphline.com news/5207).
ENDFIELDSTEAM Code Rewards
The Steam launch milestone code ENDFIELDSTEAM (see Redeem Codes section) grants T-Creds ×8,000, Elementary Cognitive Carrier ×2, Arms INSP Set ×2, and the Heat-Driven Cog portrait frame.
Sign-In Events (Launch Day and Phase 2)
- Spirit’s Restoration — October 15 → before next version update: 7-day sign-in granting LTO HH Permit ×5 for Rejuvenation (secondary source also reports +5 permits via AIC Quota)
- The Stars Are With Me — November 5 → before next version update: 7-day sign-in granting LTO HH Permit ×5 for The Hearth Fire Beckons the Starry Flow
Maintenance Compensation
Maintenance compensation is typically announced with the update notes on launch day — details were not available at publication. Expect standard Oroberyl compensation by in-game mail, as with Version 1.5.
📅 Arknights: Endfield 1.6 Events
Version 1.6 contains 14 events (all times server time; Asia UTC+8, Americas/Europe UTC-5). Event names, dates, and rewards below are compiled from secondary schedule trackers (EndSync, keygold) that mirror the official New Version Guide — treat as secondary-reported until the in-game event pages go live on October 15.
| Event | Dates | Main Rewards |
|---|---|---|
| All the Inky Hues (guide event) | Oct 15 – Nov 5 | Oroberyl ×1200, Mark of Perseverance ×7 |
| Yuanyuan’s Blazing Stoves (fun & games) | Oct 15 – Nov 25 | Oroberyl ×1000, Mark of Perseverance, Adv. Cognitive Carrier |
| Spirit’s Restoration (sign-in) | Oct 15 – before next update | LTO HH Permit ×5 (Rejuvenation) |
| Protocol Pass: Ink Scroll | Oct 15 – before next update | 6★ choice: Long Heritage or Complexed Industry |
| Carly’s Verdant Anthology (camera) | Oct 22 – Nov 5 | Oroberyl, Advanced Cognitive Carrier |
| Monumental Etching: Forest of Maras | Oct 22 – Nov 5 | Oroberyl, Advanced Cognitive Carrier, Arms INSP Set |
| Arena of Games (challenge) | Oct 29 – Nov 19 | Oroberyl ×1200, Mark of Perseverance, Adv. Cognitive Carrier |
| Contingency Readiness | Oct 29 – before next update | Sanity, Gear Artificing Catalyst, Coolant Gel |
| New Era for the Myriad Souls (fun & games) | Oct 31 – Nov 14 | Oroberyl, T-Creds |
| The Stars Are With Me (sign-in) | Nov 5 – before next update | LTO HH Permit ×5 (Hearth Fire banner) |
| Back to the Rustics (narrative) | Nov 5 – before next update | TBA |
| Contingency Contract: Indigo Experimental Operation | Nov 5 – Nov 25 | Oroberyl ×2000, Mark of Perseverance, Adv. Cognitive Carrier |
| Enter The Playfield (collaboration) | Nov 10 – Feb 10, 2027 | Exclusive collaboration content |
| Delver of the Cryptic: Fade Beyond the Painting | Nov 12 – before next update | Oroberyl, Advanced Cognitive Carrier, Mark of Perseverance |
Permanent additions (per secondary reports of the official DEV Comm): Umbral Monument: Forest Whispers, Delver of the Cryptic: Lingering Light Beyond the Painting, and new Echoes of War seasons.
🎟️ Active Arknights: Endfield 1.6 Redeem Codes
Last checked: October 10, 2026
Redeem codes can expire without warning. Codes below are listed by third-party trackers and official milestone announcements; none could be verified in-game for this pre-launch publication. Check again after October 15.
| Code | Reward | Status |
|---|---|---|
ENDFIELDSTEAM | T-Creds ×8000, Elementary Cognitive Carrier ×2, Arms INSP Set ×2, Portrait Frame: Heat-Driven Cog | 🟡 Reported active — Steam milestone code; window Oct 6 19:30 – Nov 25, 23:59 UTC+8 (Am/Eu: Oct 6 06:30 – Nov 25, 10:59 UTC-5) |
ZAU2SYXHWX5L4ZH | T-Creds ×5000, Arms INSP Kit ×10 | 🟡 Unverified — reported permanent (Game8, endfield.gg) |
ENDFIELDGIFT | Oroberyl ×150, T-Creds ×10000, Intermediate Combat Record ×20, Arms INSP Kit ×20 | 🟡 Unverified — reported permanent (Game8, endfield.gg) |
ENDFIELD4PC | T-Creds ×13000, Advanced Combat Record ×2, Arms INSP Kit ×2 (PC client only) | 🟡 Unverified — reported permanent, PC only (Game8, endfield.gg) |
⚠️ Caution: All codes are UNVERIFIED in-game as of October 10, 2026 (pre-launch). ENDFIELDSTEAM has the most consistent multi-source reporting with a stated expiry; the three permanent codes are long-running community-tracked codes. Availability may vary by account and platform. Redeem early.
⚠️ Expired Codes
AKENDFIELDSUB— expired September 9, 2026ENDFIELDRENEW— expired August 30, 2026ALLFIELD— expired (old code)VIP888— expired (launch-era code)RETURNOFALL— expired (old code)
💬 How to Redeem Arknights: Endfield Codes
Codes are redeemed in-game only. There is no official web redemption URL for Arknights: Endfield.
In-Game
- Open Arknights: Endfield.
- Open the main menu (Menu).
- Go to Settings.
- Open the Platform / Account tab.
- Select Exchange Code.
- Enter the code and confirm.
- Claim the rewards from your in-game Mail.
Note: The Mail system unlocks during the [Chapter I Process I: Break the Siege] main mission.
Tip: Codes are case-sensitive. Redeem them as soon as possible because some codes have short expiration windows.
ENDFIELD4PCcan only be redeemed on the PC client.
New Version Guide Web Rewards (Not a Code)
The New Version Guide rewards are claimed on the official website page, not in-game:
- Open the official [Sanctuary of Ink] New Version Guide page (linked in the official announcement).
- Log in with your game account.
- Make sure character creation is complete on that account.
- Click Claim Rewards before the Version 1.6 maintenance begins.
- Rewards arrive via in-game mail.
🆕 What’s New in Version 1.6?
Version 1.6 is more than a banner update.
Steam Launch
- Steam release on October 15, 2026, same day as the update
- Cross-platform account data sync — log in with your existing GRYPHLINE account and continue your Talos-II progress
- Source: GRYPHLINE press release (Games Press, October 6, 2026)
New Area — Si’s Painting
- The Core Chapter story takes players inside Si’s Painting in the Wuling region
- Per the press release: brushstrokes restore broken paths, and a search for healing brings the Endministrator’s past into focus
- New exploration, enemies, and puzzles (secondary reports)
New Story Content
- Sanctuary of Ink Core Chapter main story
- Narrative event Back to the Rustics (November 5)
Inn Management
- A countryside inn management mode offers a change of pace between excursions (official press release)
Permanent / Challenge Updates
- Contingency Contract: Indigo Experimental Operation (November 5 – November 25)
- Umbral Monument: Forest Whispers (permanent)
- Delver of the Cryptic: Lingering Light Beyond the Painting (permanent)
- New Echoes of War seasons
- Protocol Pass: Ink Scroll
- Collaboration event Enter The Playfield (November 10, 2026 – February 10, 2027)
Systems Improvements
Per the official DEV Comm (via secondary mirror):
- AIC Factory improvements
- Gear set additions
- Gameplay and control optimizations
Still in Development: Some QoL features announced in the DEV Comm are labeled as planned — wait for the update notes on launch day for the final shipped list.
❓ Arknights: Endfield 1.6 FAQ
When does Arknights: Endfield 1.6 release?
October 15, 2026, after the version update and maintenance (server time; Asia UTC+8). The Steam version launches the same day.
What is the title of Version 1.6?
“Sanctuary of Ink” — a Core Chapter Version.
Who are the new operators in Endfield 1.6?
- Si — 6★ Cryo Supporter (Rejuvenation, October 15 – November 5)
- Argent Flow — 6★ Electric Guard (Hearth Fire, from November 5)
- Tangtang — 6★ rerun (Ancestral Spring RE-Factor, October 29 – November 19)
Is “Ye Minghui” in Version 1.6?
The leaked name circulated before the program, but the official English reveal calls the Phase 2 operator Argent Flow. The program never used “Ye Minghui.”
When does Si’s banner end?
November 5, 2026 at 11:59 (server time).
When does the Tangtang rerun run?
October 29, 2026 at 12:00 → November 19, 2026 at 11:59 (server time).
Is there a redeem code for 1.6?
Yes — ENDFIELDSTEAM, reported active from October 6, 2026 19:30 (UTC+8) until November 25, 2026 23:59 (UTC+8). It celebrates the Steam launch. Verify in-game after the update.
How do I claim the New Version Guide rewards?
Log in on the official New Version Guide page and click Claim Rewards before the October 15 maintenance. Rewards arrive by in-game mail.
How do I redeem Endfield codes?
In-game only: Menu → Settings → Platform/Account → Exchange Code → Confirm, then claim via Mail. No official web redemption page exists.
What server time zones does Endfield use?
Asia: UTC+8. Americas/Europe: UTC-5.
📊 Arknights: Endfield 1.6 Quick Summary
| Category | Version 1.6 |
|---|---|
| Version | 1.6 (Core Chapter) |
| Title | Sanctuary of Ink |
| Release | October 15, 2026 (after maintenance) |
| End | Before next update (trackers: ~Nov 26) |
| New 6★ Operator | Si (Oct 15) |
| New 6★ Operator | Argent Flow (Nov 5) |
| RE-Factor Rerun | Tangtang (Oct 29 – Nov 19) |
| Main Banner | Rejuvenation → November 5, 2026, 11:59 |
| New on Steam | October 15, 2026 (cross-progression) |
| Confirmed Events | 14 (secondary-reported schedule) |
| New Area | Si’s Painting (Wuling) |
| Livestream Code | ENDFIELDSTEAM (reported, expires Nov 25) |
| Server Time Zones | Asia UTC+8; Am/Eu UTC-5 |
🔗 Official Sources
-
Arknights: Endfield — [Sanctuary of Ink] New Version Guide (rewards claim) https://endfield.gryphline.com/en-us/news/5207
-
Games Press — Arknights: Endfield Deploys on Steam Oct. 15 Alongside ‘Sanctuary of Ink’ Update (GRYPHLINE press release) https://www.gamespress.com/Arknights-Endfield-Deploys-on-Steam-Oct-15-Alongside-Sanctuary-of-Ink-
-
Arknights: Endfield — Official Website https://endfield.gryphline.com/
Secondary Sources (labeled in-article)
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EndSync — Arknights: Endfield 1.6 Sanctuary of Ink schedule, banners, events https://endsync.vercel.app/versions/1-6/
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Endfield Hub — Sanctuary of Ink Special Program recap https://endfieldhub.org/blog/endfield-1-6-sanctuary-of-ink-special-program
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gamsgo — Arknights: Endfield 1.6 Banners https://www.gamsgo.com/blog/arknights-endfield-1-6-banners
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endfield.gg — Codes (updated October 7, 2026) https://endfield.gg/arknights-endfield-codes/