Unity vulnerability forces Obsidian to pull Awoved, Pillars of Eternity, and Grounded 2 from storefronts

Obsidian Entertainment has temporarily removed several of its titles from digital storefronts due to a security vulnerability in the Unity game engine. The issue affects games that use Unity-based components, including some editions of the studio’s 2025 release Avowed.

The Unity flaw, initially discovered in June and patched on October 2, could have enabled local code execution and access to confidential information on user devices running Unity-built applications. According to Unity’s advisory, there is no evidence that the vulnerability has been exploited, but developers are strongly encouraged to rebuild their projects using the updated engine.

Obsidian announced Friday that it had delisted several games in order to “implement the necessary updates.” The affected titles include:

• Avowed Premium Edition
• Grounded 2 Founders Edition and Founders Pack
• Pillars of Eternity Hero Edition and Definitive Edition
• Pillars of Eternity II: Deadfire and its Ultimate Edition
• Pentiment

Although Avowed and Grounded 2 run on Unreal Engine 5, Obsidian clarified via social media that Unity is used for the digital artbook included with the Avowed Premium Edition. Grounded 2’s Founders Pack also includes an artbook, though it’s unclear whether this component is also Unity-based.

“Our team is working on a fix and will restore these games as soon as possible,” the studio said in a post on X. “We will provide additional information once they are available again.” Players who already own the affected titles are advised to apply patches once they are issued.

Obsidian is one of many developers impacted by the Unity security issue. Games like Overcooked 2 and Among Us received rapid updates to address the vulnerability. However, some Unity-based titles — such as the PC version of Fallout Shelter — remain unavailable pending further fixes.