On October 3, Unity sent out a crucial alert to game developers using its engine since 2017. This was due to a recently discovered security vulnerability in the engine’s code. Although there’s no evidence that this vulnerability has been exploited, it has prompted many developers to rush to patch their games.

The Unity engine, launched in 2005, has powered hits like Hollow Knight: Silksong, Subnautica, and Among Us. It’s a go-to for indie developers due to its ease of use and versatility across various platforms, including PCs and mobile devices. Unity did face backlash over a controversial Runtime Fee plan introduced in 2023, but they reversed it in 2024 after receiving heavy criticism from the gaming community. Licenses for the engine are available through a traditional subscription model, but for those earning under $200,000, the Unity Personal option remains free.

A Security Flaw in the Unity Engine

This time, the stakes are higher. Reports have surfaced about a serious security vulnerability affecting Unity versions from 2017.1 onward, including Unity 6. This issue could potentially allow hackers to access sensitive information from users’ machines across Windows, Android, Linux, and macOS systems. Unity has assured that there has been no sign of exploitation and has already provided fixes to developers. Additionally, Microsoft Defender can detect and block the vulnerability on Windows, while Valve has implemented its own protections via the Steam Client.

In a precautionary move, Obsidian Entertainment has pulled games like Grounded 2, Pentiment, Avowed, and Pillars of Eternity from digital stores while they work on applying the necessary fixes. They aim to protect players, but haven’t provided a timetable for when these games will return. Meanwhile, titles such as Among Us and Marvel Snap have already rolled out updates addressing this vulnerability.

With Unity being the backbone for a multitude of games across platforms, it’s uncertain how many titles will need updates in the near future. The gaming community is on high alert, and developers are working tirelessly to keep players safe.