Three issues of this experimental self printed publication were produced between 1985 and 1987 by Henryk Gericke (text) and the artist Ronald Lippok. The first issue of Caligo consisted of 24 pages, plus cover, with a printrun of just about 30 copies. Later Gericke described it as very raw and therefore it was the most charming one. German writer Bert Papenfuß called it a "surrealistic fanzine".
All three publications were secretly produced while Gericke was working at "Progress Filmverleih" (film distribution) as a printer. Due to governmental circumstances the production was illegal.
The zine Braegen, released in 1988, was the follow-up project by Henryk Gericke.