The Castles of Dr. Creep

The Castles of Dr. Creep is a platform game for the Commodore 64 written by Ed Hobbs and published by Broderbund in 1984. The Castles of Dr. Creep includes a heavy puzzle element. It takes place in thirteen medieval castles owned by the eponymous doctor, and the player's task is to escape from each castle. One- or two-player games are possible, allowing collaborative gaming for solving the puzzles. It was re-released via Steam on September 2, 2016.