For the longest time, I have had issues with Unity-based games refusing to start and run properly when using the open-source radeonsi driver (Mesa).
Fortunately, a developer from Parabola (using the alias max_sraw on the Steam forums), offered a fix which solved my issue with their game Kona refusing to start. In the mean time, it has proven to become one of the most reliable ways for me to ensure that all my Unity-based games start on all the Linux distributions that I have tested so far (Ubuntu, Debian and openSUSE).
Continue reading Fix for Unity-based games crashing on Linux (tested on Ubuntu, Debian and openSUSE)