Tapes are a semi-important feature in Yandere Simulator. Their main function is to tell lore during gameplay.
There are currently 12 tapes in total, out of which 10 are hidden around the school. The 11th and 12th tape are found in Yandere-chan's basement. When walking up to a tape, the player can press E (PC) or A (controller) to pick up the tape, it will not show up in Yandere-chan's inventory.
The tapes can be played in the cassette player in the Computer Lab, located on the third floor. Before a tape plays, the player is able to use the left and right keys to select the category of tapes the player desires to listen to: the Mysterious Tapes or the Basement Tapes. While a tape is playing, the left and right arrow keys are used to rewind or fast forward, E to pause, and Q to stop the tape from playing. No time passes in-game when a tape is playing.
If there are parts of the story that can't be revealed by normal gameplay, more cassette tapes will be added. They do not have a direct impact on gameplay and are just there for the player to learn about the game's lore and backstory.
There are signal bars in the right top corner of Yandere-chan's phone which indicate how close the player is to a tape. Five bars means the player is close to a tape; zero bars means the opposite.
- Main Article: Basement Tapes
The Basement Tapes are told from a third-person perspective, describing the relationship of Ryoba Aishi and her senpai. These tapes are based around after Ryoba kidnapped her Senpai up to right before the start of the game.
- Main Article: Mysterious Tapes
The Mysterious Tapes are narrated by The Journalist who talks about his past. The tapes are based around when Ryoba is in high school.
- Main Article: Headmaster's Tapes
The CEO's Tapes are mentioned in a chart listing all factors that will effect the ending of the game. If there were a small town, there is a conceivable reason for the tapes to be there. There is no guarantee that they will be implemented, as they are unnecessary.
- The Mysterious Tapes were first shown off in "August 1st Build Delayed". All the Mysterious Tapes were implemented in the August 12th, 2015 Build.
- Instead of tapes, there used to be an original plan where Yandere-chan would learn about the murders through scattered newspaper articles.
- In the future, there may be diary pages along with the tapes.
- There is a planned tape to explain why Info-chan is in a one member club that is exempt from school rules as soon as an appropriate voice actor is found.
- According to the video "January Osana Progress Report - Part 2", finding all of the tapes will affect the games ending.
- No time passes when listening to the tapes.