The first major content expansion for Arknights Endfield is finally here. Version 1.1, officially named "Old Deep Water Dies by Rising Tide It is Denied," brings exciting new story chapters, powerful operators, expanded factory systems, and plenty of quality-of-life upgrades to the 3D industrial RPG.
Release Date and Maintenance Schedule
Arknights Endfield 1.1 launches on March 12, 2026, at 12:00 PM (UTC+8). Maintenance begins at 6:00 AM (UTC+8) the same day and should last approximately six hours.
- 12:00 AM EDT (March 12)
- 9:00 PM PDT (March 11)
Players who created an account before the update goes live will receive 900 Oroberyl as compensation.
New Operators: Tangtang and Rossi
Two brand-new 6-star operators headline the update, each arriving in separate phases with their signature weapons.
- Tangtang (Phase 1: March 12 – March 29)
6-star Cryo Handcannon Caster. She specializes in area-of-effect Cryo damage and team support. Her ultimate skill "DA CHIEF SEES YOU!" immobilizes all enemies in range (including bosses), creating massive damage windows for the squad. - Rossi (Phase 2: March 29 onward)
6-star Physical Guard. She wields a sword and introduces a unique mechanic that converts Arts Infliction into Vulnerability, delivering a powerful defense break for physical-damage teams.
Signature weapons include Brigand's Calling (for Tangtang) and Lupine Scarlet (for Rossi). Both are available on limited-time gacha banners and through the Protocol Pass (Homelonging and Glorious Moment).
New Story and Exploration Content
The update expands the Wuling region with the brand-new Qingbo Stockade area. Players will continue the main storyline while investigating rising tensions with Wuling City. A dedicated narrative event called "The Red Knight" focuses on Rossi's adventures and background.
Factory and Gameplay Upgrades
Factory builders get a major boost with the new Hydro-Industrialization system, which adds fresh layers to AIC automation. New gear sets crafted from Cuprium Ore, upgraded simulation rewards, and several optimization fixes make daily play smoother than ever.
Banner Schedule Summary
- Phase 1 (March 12): Tangtang + Brigand's Calling (gacha) + Homelonging (Protocol Pass)
- Phase 2 (March 29): Rossi + Lupine Scarlet (gacha) + Glorious Moment (Protocol Pass)
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