Key points
- Steam release on October 15, after more than 300,000 Steam wishlists, with account data shared across every platform.
- Sanctuary of Ink adds 6-star operators Si and Argent Flow through successive recruitment events.
- New content: Si’s Painting (the eighth Wuling area), a main-story chapter, an inn farming and cooking mode and a returning Contingency Contract.
- A launch code (8,000 T-Creds and upgrade materials) can be redeemed on any platform until November 25.
The Steam launch
Arknights: Endfield has been out on PS5, PC (the official launcher and the Epic Games Store), iOS and Android. On October 15 it adds Steam, and AUTOMATON reports that account data is shared across all platforms, so existing players carry on where they left off. To mark more than 300,000 Steam wishlists, a code in the Pause menu under Settings, Platform & Account, Exchange Code gives 8,000 T-Creds, two Elementary Cognitive Carriers, two Arms INSP Sets and a portrait frame until November 25 at 15:59 UTC.
What Sanctuary of Ink adds
Si, a Feranmut Proxy who runs the Yuanyuan Manor Inn, draws “Inksoul” from enemies that sends damage back to them and buffs Cryo and Heat teammates. Argent Flow fights with sword and spear from his warhorse Nuli. Both arrive through recruitment events during the update. The story moves into Si’s painted landscape, the eighth explorable area in Wuling, and Yuanyuan’s Blazing Stoves adds an inn mode built around farming and cooking. The Indigo Experimental Operation brings back Contingency Contract with modifiers that add enemy attack patterns, and the update adds saved loadouts and finer mouse targeting.
What it means for buyers
Endfield is one of the busiest account markets we track: G2G alone showed 3,594 account offers from 174 sellers on our October 14 check. Cross-save cuts both ways. A bought account now works on whichever platform you play, but it can also be signed in from any platform it is linked to, so change the email, password and every linked login as soon as it arrives, and check which platforms are attached. Expect a wave of fresh “starter” accounts with the new 6-star operators after the banners open. Sellers are on the Arknights: Endfield page.
Sources
- Gematsu: Sanctuary of Ink launches October 15 alongside Steam releaseOct 6, 2026
- AUTOMATON: Arknights: Endfield comes to Steam on October 15, cross-platform saves supportedOct 7, 2026
- games.gg: Arknights: Endfield Sanctuary of Ink updateOct 8, 2026
We report from official announcements first and name the outlet when a detail comes from one report. Found an error? Tell us, and see our editorial policy.
