Diapers, Please! is a puzzle simulation created by VoltekPlay, set in an alternate reality of the 1920s where society operates under strict bureaucratic regulations. Players take on the role of the Custodian of Bloodlines, a maternity ward official whose primary responsibility is accurately matching newborn babies with their parents. After a devastating fire destroys all existing birth records, the player must rely solely on genetic traits, visual indicators, and logic to ensure each infant is returned to the correct family.

Gameplay centers on meticulously observing characteristics such as eye color, hair traits, height, and weight, and carefully referencing genetic inheritance rules provided by the state. Each decision made can significantly influence the lives of families involved and carries repercussions from governmental oversight, emphasizing the importance of accuracy and critical thinking. The atmosphere created by VoltekPlay combines historical elements with fictional political control, exploring themes of authority, identity, and accountability. Diapers Please requires keen observation, careful deduction, and thoughtful decision-making, engaging players in moral dilemmas and complex puzzles within a structured yet morally ambiguous world.