You've been imprisoned in a castle by an evil wizard, and your task is to escape alive.
The title is 'Schloss' (meaning 'Castle') on the instructions screen, but various Atari archives incorrectly refer to it as 'Schloss Des Grauens' (meaning 'Castle of Horror'). This is actually a translation of Castle
The copyright screen implies that it was released by Atari in 1981, but this is just a copy of the original. If it was released by Atari, it would have been Atari (Germany), but this has not been confirmed.
A data file on the disk indicates that the German translation was done by Frank Ollmann in 1982.
[+] Users who have solved this game
[+] Users currently playing this game