version sold on GOG
1. Install the scripts dependencies:
apt-get install fakeroot icoutils unzip
2. Put in a same directory scripts and installer:
gog_baldur_s_gate_the_original_saga_220.127.116.11.sh play-anything.sh play-baldurs-gate_gog-18.104.22.168.sh
3. Run the building process:
4. Wait a couple minutes, the building will end by giving you the commands to launch as root to install the game.
This script accept several options to set its behaviour. Follow the links to more details on how to use them.