/home/nathan/.local/share/Steam/steamapps/common/Rise of the Tomb Raider$ ./RiseOfTheTombRaider.sh
WARNING: Rise of the Tomb Raider not launched within the steam runtime
         This is likely incorrect and is not officially supported
         Launching steam in 3 seconds with steam://rungameid/391220
/home/nathan/.local/share/Steam/steam.sh: line 106: VERSION_ID: unbound variable
/home/nathan/.local/share/Steam/steam.sh: line 106: VERSION_ID: unbound variable
Running Steam on arch  64-bit
/home/nathan/.local/share/Steam/steam.sh: line 106: VERSION_ID: unbound variable
STEAM_RUNTIME is enabled automatically
Pins up-to-date!