Proton GE, or Proton GloriousEggroll, is a custom version of Valve’s Proton software that is designed to improve game compatibility on SteamOS and Linux. SteamOS and Linux users have long struggled with limited game compatibility due to the lack of support from major game developers. However, Proton GE is changing that by providing a way for users to play Windows-only games on Linux and SteamOS.

Proton GE is an open-source tool that is based on the Wine software, which is a compatibility layer that allows Windows software to run on Linux systems. Proton GE is essentially a customized version of Wine that has been optimized for gaming. It includes various patches and enhancements that improve compatibility with Windows games.

One of the most significant advantages of Proton GE is that it provides access to a vast library of games that were previously off-limits to SteamOS and Linux users. This is achieved by providing a more comprehensive set of features that are designed to mimic the Windows environment, allowing games to run seamlessly on Linux and SteamOS. Additionally, Proton GE performs well on almost any hardware configuration, from low-end to high-end systems.

Proton GE has several features that are designed to enhance gameplay on Linux and SteamOS. One of the most significant is the ability to use DirectX 11 and 12 graphics libraries, which are often required by many modern games. This is accomplished through the implementation of DXVK, a Vulkan-based implementation of DirectX. DXVK translates the Direct 3D calls into Vulkan calls, resulting in better performance and reduced latency.

Another feature of Proton GE is the ability to use different versions of Wine for different games. This is useful because some games may require specific versions of Wine to run correctly. Proton GE allows users to switch to different Wine versions quickly, ensuring seamless compatibility with these games.

Proton GE also includes a variety of tweaks and optimizations that can significantly improve performance. These optimizations include support for multi-threaded games, improved CPU usage, and better memory management.