Castle of Dr. Brain is the first in a two-part series of educational puzzle-games from Sierra. This brain-blasting game is set, how surprisingly, in Dr. Brain's castle, where the player will have to beat Dr. Brain's traps and puzzles in order to fulfill the assignment given.

The world-famous mad scientist Dr. Brain is looking for a laboratory assistant, and so you head to his castle to apply for the job. Once there, you encounter various puzzles designed to test your problem-solving skills.