Nightdive officially confirms Thief Remastered is coming with a new campaign, The Tarnished Mirror
Nightdive Studios confirms *Thief Remastered* will include a new campaign, *The Tarnished Mirror*, revealed after a Steam achievements leak.
Nightdive Studios has officially acknowledged *Thief Remastered*, confirming a new campaign titled *The Tarnished Mirror* following its accidental leak in the recent Steam achievements breach. The studio teased the announcement in a YouTube video, showing a playful response to the leak and unveiling new key art by artist Alexandru "Dominus" Negoita. The video ends with Garrett’s line, "Huh, not so secret anymore," paired with the campaign’s logo. The leak originated from achievement-tracking site Exophase, which published data for unreleased games, including several *Thief Remastered* achievements tied to *The Tarnished Mirror*.
The leak revealed achievements referencing a yet-to-be-announced expansion, prompting Nightdive to confirm the campaign’s existence ahead of its planned reveal on November 2. Exophase later removed the most spoilery details, but the original list remains accessible via The Wayback Machine. The expansion marks the first official new content for the franchise in nearly three decades, generating significant excitement among fans. Nightdive’s remaster of *System Shock 1* has already earned praise for its quality, fueling anticipation for original work beyond remakes.
The *Tarnished Mirror* campaign is positioned as a standalone addition to *Thief Remastered*, which is set for a Winter launch window. The announcement places *Thief Remastered* among surprise expansion packs for older titles in 2026, alongside *The Witcher 3: Songs of the Past* and *Quake: Dawn of the Machine*. Fans have long awaited new *Thief* content, with many high-quality fanmade campaigns already available, but Nightdive’s involvement ensures an official and polished experience.
Nightdive Studios, known for its remasters, has confirmed *The Tarnished Mirror* as part of *Thief Remastered*, with further details scheduled for November 2. The expansion’s reveal follows its accidental exposure in a Steam achievements leak, which also included data for unreleased games. The studio’s track record with *System Shock 1* suggests the new campaign will meet high standards, adding fresh content to a 28-year-old franchise.