"Started as a demo group in the French-speaking part of Switzerland; won the demo competition at the first THE PARTY event with their demo ODYSSEY in December 1991, spanning not less than five disks. Founding member and head of the group is PGCS [Pascal Arn], who also drew all those awesome graphics used in ODYSSEY."
(Source : https://amiga.abime.net/developers/view/alcatraz-switzerland)