post_install() {
  touch /opt/gog/crypt-of-the-necrodancer/game/data/played.dat
  touch /opt/gog/crypt-of-the-necrodancer/game/data/save_data.xml
  touch /opt/gog/crypt-of-the-necrodancer/game/data/save_data.xml_TEMP
  mkdir /opt/gog/crypt-of-the-necrodancer/game/replays/
  mkdir /opt/gog/crypt-of-the-necrodancer/game/logs/
  chmod 666 /opt/gog/crypt-of-the-necrodancer/game/data/played.dat
  chmod 666 /opt/gog/crypt-of-the-necrodancer/game/data/save_data.xml
  chmod 666 /opt/gog/crypt-of-the-necrodancer/game/data/save_data.xml_TEMP
  chmod 777 /opt/gog/crypt-of-the-necrodancer/game/replays/
  chmod 777 /opt/gog/crypt-of-the-necrodancer/game/logs/
  echo "==> The save is located in /opt/gog/crypt-of-the-necrodancer/game/data/"
}