Castle of Riddles
Developer(s)	Peter Killworth
Publisher(s)	Acornsoft
Platform(s)	Acorn Electron, BBC Micro
Release	BBC: EU: 1983 [1] Electron: EU: 1984
Genre(s)	Interactive fiction
Mode(s)	Single-player

Castle of Riddles is a text adventure released by Acornsoft for the BBC Micro (in 1982) and Acorn Electron (1984) home computers. The game was written by Peter Killworth and was one of a series of text adventures written for, or ported to the BBC Micro by the same author (others including Countdown to Doom and Philosopher's Quest). As with all such games, only text is used. The player must use a simple 'verb-noun' format (e.g. 'Go North', 'Get lamp') to control the game. Unlike Killworth's other Acornsoft adventures, Castle of Riddles was not updated and reissued by Topologika so became unavailable after 1985 when Acorn Computers (parent company of Acornsoft) pulled out of the games publishing market. Some of the puzzles however were included in the Topologika version of Philosopher's Quest.[2]

Plot

The player takes the role of a 'professional adventurer' who is 'down to his last silver piece'. His services are hired by a wizard whose castle has been taken over by a warlock. The warlock has also found the wizard's Magic Ring of Power which must be returned. The player must navigate the castle, solve problems and avoid booby traps set by the warlock in order to recover the magic ring for the wizard. At various moments in the game the adventurer is posed a riddle to answer. The adventurer must also search for treasure and deposit it in a safe. The treasure may be kept as payment.

Gameplay

Points are awarded for picking up treasure and again for depositing it in the safe as well as completing certain tasks. The maximum possible score is 250.