Zero Escape: Nine Hours Nine Persons Nine Doors is the initial installment in the Zero Escape series, originally known as "Nine Hours, Nine Persons, Nine Doors." Developed by Chunsoft, this murder mystery visual novel captivates players with its intricate storyline, compelling them to embark on multiple playthroughs to unravel its mysteries. The game seamlessly integrates puzzle rooms to drive the narrative forward, interspersed with crucial dialogue choices.

For iOS users, a modified version of the game exists sans the traditional puzzle rooms, emphasizing the visual novel elements. Instead, players experience the story through narrated events, offering a unique perspective. Additionally, the iOS adaptation features an exclusive ending, providing a fresh conclusion to this immersive narrative.