Works perfectly out of the box with no issue whatsoever.
If you own Field of Glory 2: Medieval, please note that in order to export your battles, you will have to do the same tinkering that is necessary with Field of Glory: Empires and Field of Glory 2. That is, you need to create two symlinks between the game directories.

This is the script that worked for me:
$ ln -s "/home/[my_user]/.steam/steam/steamapps/compatdata/1985050/pfx/drive_c/users/steamuser/My Documents/My Games/EmpiresKingdoms" "/home/[my_user]/.steam/steam/steamapps/compatdata/1368870/pfx/drive_c/users/steamuser/My Documents/My Games"
$ ln -s "/home/[my_user]/.steam/steam/steamapps/compatdata/1368870/pfx/drive_c/users/steamuser/My Documents/My Games/FieldOfGloryMedieval" "/home/[my_user]/.steam/steam/steamapps/compatdata/1985050/pfx/drive_c/users/steamuser/My Documents/My Games"