Nine Hours, Nine Persons, Nine Doors

Also known as: Nine Doors | Nine Hours | Kyokugen Dasshutsu 9 Jikan 9 Nin 9 no Tobira | Extreme Escape: 9 Hours | 999 | 999: Nine Hours, Nine Persons, Nine Doors | Extreme Escape: 9 Hours, 9 Persons, 9 Doors | Zero Escape: Nine Hours, Nine Persons, Nine Doors | 999: 9 Hours, 9 Persons, 9 Doors

The game is a murder mystery visual novel with a heavy story focus that requires multiple playthroughs to figure out and involves puzzle rooms used to progress through the story with dialogue choices to be made inbetween them.