[b]SteamOS and Linux will now default to a native Linux build. [/b] This [i]might[/i] have the unfortunate side effect of saves not being compatible between the previous Proton build and the Linux build. We apologize for the inconvenience, but hopefully going forward this will maximize compatibility for our Linux friends! Please keep reporting any issues you might face through the in-game reporting tool. Our ability to test on Linux especially is limited, so every report helps.