ARC Raiders Hotfix 2.1.1: Locked Room and Dupe Fixes

ARC Raiders Hotfix 2.1.1 went out on October 16 and does one job: it closes "several instances that allowed players to access locked rooms and duplicate items." There are no balance changes and no new content. If you never used the exploit, nothing in your stash changes.

Key Takeaways

• The hotfix targets two exploits: getting into locked rooms and duplicating items.
• Embark named neither the rooms nor the items, on purpose.
• It landed three days after Store Update 2.1.0 and a week after Hotfix 2.0.2.
• Exploit reports go to Embark's Discord support inbox or @ScrappyMail, not to Reddit.

Screenshot: ARC Raiders Steam store page

What Embark said

The full note is two paragraphs on the ARC Raiders Steam page, signed "Ossen." The first is the fix itself: "We're rolling out a hotfix right now to address several instances that allowed players to access locked rooms and duplicate items."

The second explains the silence on details. Embark thanked players who "reported these issues directly to us," and said reports through its Discord support inbox or @ScrappyMail "allow us to act on these issues much more effectively without spreading the method publicly." So there is no list of which doors were bypassed or which items were copied.

Where it sits in October's patches

This is the third patch since Frozen Trail. Hotfix 2.0.2 on October 9 fixed invisible weapon meshes, server crashes and a grate on Pendola Pass that players could fall through. Store Update 2.1.0 on October 13 fixed Reward Pass progress, which our Reward Pass guide covers. Hotfix 2.1.1 follows three days later.

It also lands in the middle of the PvE matchmaking test, running "From October 13 (11:00 CEST) - 20 (11:00 CEST)." The hotfix notes do not mention PvE, but the timing matters to players there: the Reddit thread "Dupers everywhere?" went up on October 15, the day before the fix. If you are trying the toggle, our PvE mode explainer covers what changes on those servers.

What players are saying

Reaction in the Embark announcement thread on r/ArcRaiders leaned toward relief at the speed: "Damn embark been locking in lately, usually would have taken about 1-2 weeks for dupe glitch to get fixed," from u/WasabiTrades. u/tgerz found it "relatively quick" and hoped "it's a solid hotfix."

Not everyone thinks it is over. In the October 15 "Dupers everywhere?" thread, u/a1vmp1 claimed "You can only dupe ammo with this new glitch," and a post on October 16 reported "Definitely still some sort of duplication of items going on in game." Those are player reports, not confirmed by Embark, and the October 16 post does not say whether it came before or after the hotfix went out.

Screenshot: ARC Raiders Steam store page

Our take

Keeping the method private is the right call. Two-line patch notes are frustrating, but a detailed list would have taught the exploit to everyone who missed it. If a raid looks suspiciously well geared after October 16, report it through the Discord inbox or @ScrappyMail instead of posting a clip that shows how it was done. For everything else in the current season, start at the ARC Raiders hub or the Pendola Pass guide.

Frequently Asked Questions

What does ARC Raiders Hotfix 2.1.1 fix? Locked-room access and item duplication exploits. Nothing else is listed.

When did Hotfix 2.1.1 come out? October 16, 2026, on the ARC Raiders Steam page.

Which rooms and items were affected? Embark did not say, to avoid spreading the method.

How do I report an exploit in ARC Raiders? Use Embark's Discord support inbox or @ScrappyMail.

Does Hotfix 2.1.1 change the PvE toggle test? No. The test still ends October 20 at 11:00 CEST.

Related Reading

• ARC Raiders Anti-Cheat Update: Embark's ban policy for cheaters.
• ARC Raiders Reward Pass Guide: what Store Update 2.1.0 fixed.
• ARC Raiders PvE Mode Explained: the October 13 to 20 test.

References

• Hotfix 2.1.1, ARC Raiders on Steam
• Hotfix 2.0.2, ARC Raiders on Steam
• PvE Toggle Beta Test: October 13-20, ARC Raiders on Steam
• Store Update 2.1.0, Embark Studios
• Embark's Oct 16 hotfix thread, r/ArcRaiders
• Dupers everywhere?, r/ArcRaiders
• Duplication report, r/ArcRaiders