The Castles of Dr. Creep

The Castles of Dr. Creep is 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 game is possible, allowing collaborative gaming for solving the puzzles. It was re-released via Steam on September 2, 2016.