How to Run Portal Reloaded on Linux
This Guide will show you how to run Portal Reloaded in Linux. Follow these simple steps;
Getting to the preferences
First, navigate to Portal Reloaded in your Steam library, then click on the gear icon on the right side of your screen. Here click on “Preferences”.
Here, on the left side click on “Compatibility”.
Forcing Steam Play
In the “Compatibility” tab, check the “Force the use of a specific Steam Play compatibility tool” checkbox, and select Proton 6.3-2.