Step 3: Enable Steam PlayIn the Settings sidebar, look for the Compatibility tab (formerly labeled Steam Play). Here, you will see two important options:
Steam Proton has completely changed the landscape of PC gaming by allowing Windows-exclusive titles to run seamlessly on Linux and the Steam Deck. Whether you are a Linux enthusiast or a new Steam Deck owner, understanding how to download, install, and optimize Proton is the key to unlocking a massive library of games. What is Steam Proton?
Proton is a compatibility layer developed by Valve in collaboration with CodeWeavers. It is built on top of Wine (Wine Is Not an Emulator) and integrates several high-performance graphics libraries like DXVK (DirectX to Vulkan) and vkd3d-proton.
Install: Hit Install, and it will automatically place the files in the correct Steam directory.
Enable Steam Play for supported titles: This allows Proton to run games that Valve has officially verified.