The Pajama Sam series is a collection of point and click children's adventure and puzzle games originally created by Humongous Entertainment.

[1] All games consist of multiple parts: an introductory phase in which Sam begins in one room of his house, entering an imaginary world through some dark space in his house, the actual journey he undertakes in that world, and a concluding cinematic that ends the story.

While Sam is in the imaginary world, he can move from one screen to another and interact with the environment with point-and-click controls.

Different areas feature important items and non-playable characters that can be collected or interacted with.

In addition to the main storyline, each game features hidden optional collectible items scattered in the world, with a special reward available to those who can find them all.