September 15th Bug-Fixing Build

New build. 90 changes in total. 40 improvements, 50 bug fixes. Every word in this blog post from last month is still just as relevant as it was before.

As usual, at the bottom of this blog post, you can find a list of everything that was changed in the latest build…but first, I want to share something cool with you! French music artist “kobzx2z” wrote a song titled “AYANO” about a girl madly in love with a boy, with lyrics that directly reference Yandere Simulator by name. That’s so cool! You can listen to the song here:

You can search for the lyrics on Google and click “Translate to English” to learn what the singer is saying!

This is just one of many recent fan creations that has really impressed me! Maybe in the next few days, I’ll make a blog post just to shine a spotlight on some of the coolest things I’ve seen fans produce in the past few months…

Anyway, click “Continue Reading” to see a list of everything that changed in the latest build.

Changes and Improvements

  • I’d like to try an experiment. I want to know if the trees and flower petals around school are contributing towards the low framerate that some users experience. So, I’ve implemented a debug command for disabling all trees and petals at school. Press the “Y” key 10 times to disable all trees and petals at school. After that, you can press the “Y” key again to toggle the trees/petals on and off. Please let me know if this solves any framerate issues that you are having.
  • From now on, Raibaru will walk – not run – to her “talk with Osana before walking into school” event. This should reduce (or, hopefully, eliminate) the feasibility of an exploit which allowed the player to kill Osana early in the day without Raibaru noticing by using the “Pass Time” feature to break Raibaru’s pathfinding, which becomes less stable the faster she is moving.
  • Arranging a meeting with a rival at 5:00 PM on Friday was an exploit that would allow the player to prevent a rival from putting a note into Senpai’s locker to arrange a confession. This exploit has been removed; rivals will no longer agree to a meeting that late into the day, because it’s too close to their planned confession to Senpai.
  • The player is not allowed to save the game while any type of bloody clothing is present on the ground at school. When the player tries to save the game under those circumstances, the game displays warning text. However, the warning text referred specifically to bloody uniforms and not clothing in general. This has been fixed.
  • From now on, the length of the string coming out of a watercooler tripwire trap will be relative to the distance between the watercooler and the nearest wall. (This is a “Whoa, Technology!” feature to me.) This prevents an exploit that was previously used to use the tripwire trap on students who were on the other side of a wall.
  • Teachers in all time periods and the student council boys of 1989 will no longer perform a “scared” animation when they hear a suspicious noise during low school atmosphere, since they’re supposed to be authority figures, and thus they shouldn’t seem cowardly or easily scared.
  • The rival will no longer react to giggles or talk to the player on Friday morning while she is on her way to put papers onto Senpai’s desk. She is taking that favor for Senpai so seriously that she doesn’t want to respond to any distractions until she’s taken care of it.
  • If the player reduced a prisoner’s sanity, went to school, and then used the “Reset at Home” feature, the game would not reset the prisoner’s sanity to what it originally was (nor would it reset the time of day properly). This bug has been fixed.
  • When creating a new save file in 1980s Mode, the button for entering the “Week Select” screen was marked as “Debug”. This was vague and didn’t provide any information on what the button actually did, so the text has been changed to “Week Select.”
  • Many players were using an exploit that allowed them to make Ayano’s camera clip through a solid wall so that they could take a “Sneak Panty Shot” of a character who was on the other side of a wall. Naughty! This exploit has been removed.
  • When a student is alarmed by your actions, a “Detection Marker” will appear onscreen, indicating the direction of the student that you are alarming. From now on, “Detection Markers” will no longer appear in photographs that you take.
  • If the player befriended a rival, then later committed a murder in front of that rival, that rival would still testify positively about Ryoba during the court case at the end of the game. This oversight has been resolved.
  • The player can no longer use an emergency shower by walking into it while holding a club uniform. It will only accept clean school uniforms, not club uniforms. (This is the way it was always intended to work.)
  • Previously, it was impossible to create a “chain” of electrified puddles of water if the first puddle in the chain was electrified by a sabotaged power strip. It should now be possible.
  • From now on, if the nurse catches the player breaking into the medicine cabinet, the nurse will actually close and lock the cabinet after sending the player to the guidance counselor.
  • If you try to leave school, Ayano says “…Senpai…” but in the Mission Mode timeline, Senpai is dead, so she shouldn’t say that! The line has been changed for Mission Mode.
  • The player will no longer hear the sound of the Light Music Club’s instruments (when they are practicing together as a band after 5:00 PM) while on the floor underneath them.
  • Any student who witnesses the player create a “bucket over doorway” trap or a “watercooler tripwire” trap will now dismantle the trap if they walk through the door/string.
  • Covered up locations on the school rooftop where the player could see “gaps” between the interior and exterior of the school if the camera was angled in a specific way.
  • Adjusted the positions of the masks that the protagonist can wear, so that the masks don’t clip into her hair or have the eye-holes positioned far from her actual eyes.
  • The “Electrocute” section of the “Ideas” menu in Ryoba’s pause screen notepad has been updated with more information about how to perform an electrocution elimination.
  • The “back away slowly when witnessing someone die in a disturbing way” state will now only be triggered when the victim is less than 5 meters away from the witness.
  • Buying a box of bang snaps from Info-chan gives the player 20 bang snaps. However, the text on the box said “100” instead of “20.” This oversight has been fixed.
  • The player can no longer put an entire raincoat (plus gloves, plus galoshes) into a bookbag, since that entire outfit would be way too big to fit inside the bag.
  • There is now a sound effect when picking up buckets. (I thought I added this years ago, but it turns out I only applied it to one bucket at school. Oops!)
  • The uniform that the player is wearing in the “Thanks For Playing!” scene now reflects the uniform that the player chose at the start of the game.
  • Changed the text that displays when joining the 1980s Mode Photography Club, since that club’s bonus in 1989 is different from the bonus in 202X.
  • From now on, a student that is following the player will stop following if the player enters a “trespassing” area, such as the faculty room.
  • If the player puts a bucket of water above a door while in view of other students, those students will now react negatively to the player.
  • It is now possible to use the “Escape” key to instantly pull up the “Return to Main Menu?” window from inside of the protagonist’s home.
  • Yui and Haruto now have the “Spiteful” Personas instead of the Loner Personas, as an homage to their original “evil” personalities.
  • From now on, objects will no longer clip through walls if the player is directly facing a wall while dropping an object.
  • The act of sabotaging a power strip with a screwdriver will now be considered “suspicious” by any witnesses nearby.
  • Corrected misinformation in Info-chan’s Schemes menu (claimed that it was possible to poison Raibaru on Wednesday).
  • Female delinquents in 1980s Mode now arrive at class late, just like the male delinquents do.
  • Some of the toilets at school didn’t have any water in them. This issue has been fixed.
  • The “Makeshift Knife” didn’t have an inventory icon until now. Oops! Now it does.
  • Yaku’s visor was incorrect in his student profile. It’s been fixed.
  • Added another plushie to the plushie shelf! Welcome, Victorialand5!
  • The “rummage in faculty room” action now goes by 2x as fast.


  • Fixed bug that would cause the protagonist to be alive and dead at the same time if she stood in a puddle of water while holding a car battery and then used the “Pass Time” feature to enter the “passing time” state simultaneously with the “electrocuted” state.
  • Fixed bug that caused students to be alarmed by the sight of the protagonist picking up a weapon that shouldn’t be considered suspicious (such as a baseball bat if the protagonist is in the Sports Club).
  • Fixed bug that would prevent the “Player’s current amount of money” text label from returning to the correct color after flashing red (when the player tried to purchase something they couldn’t afford).
  • Fixed bug that would allow the camera to clip into the cabinets in the Headmaster’s office, causing a rendering error that would turn certain 3D models invisible while the camera was in that position.
  • Fixed bug that could cause teachers to become permanently stuck in place if they heard the sound of the player rummaging around in the faculty room while they were investigating a suspicious noise.
  • Fixed bug that caused Osana to teleport to the ceiling if she discovered her missing phone on Friday at lunchtime at the exact moment that her “show phone to Senpai” event was supposed to begin.
  • Fixed bug that could result in a character performing a walk animation while traveling at running speed if they were distracted by a suspicious sound while performing their running animation.
  • Fixed bug that would cause a teacher’s hair to change colors when the player’s sanity was lowered, if the teacher was a replacement teacher that had been hired to replace a dead teacher.
  • Fixed bug that would cause Raibaru to identify Osana’s corpse while her corpse was wrapped in a garbage bag, if Raibaru was in the “running to inform Osana of a corpse at school” state.
  • Fixed bug that could cause the camera to get stuck or cause the game to freeze if the player was rotating the camera at the same time that they summoned the “School Newspaper” window.
  • Fixed bug that would allow Osana and Raibaru’s subtitles to interfere with Megami’s subtitles if the player approached Megami’s laptop while Osana and Raibaru were speaking together.
  • Fixed bug that would prevent the player from being able to throw the car battery if they were attempting to throw it while especially close to the spot where it was originally found.
  • Fixed bug that prevented the “Particle Count” setting in the “Detail Options” section of the Settings menu from affecting the particle count of the trees in the zen garden areas.
  • Fixed bug that would cause pink letters to appear floating in midair inside the guidance counselor’s office during the scene where the rival is sent to the counselor’s office.
  • Fixed bug that caused the game to think that any punishment from the counselor should count as an expulsion, even if the counselor was only suspending the player for one day.
  • Fixed bug that would screw up Osana’s “find Senpai’s book in the fountain” event if the player giggled / attempted to distract Osana somehow during the “find book” animation.
  • Fixed bug that allowed a player to make a bucket clip inside of a solid object by setting the bucket on top of an object and then activating the “dip mop into bucket” state.
  • Fixed bug that would cause Osana to sue her phone to call the police after witnessing Raibaru’s death…even though her phone had been stolen and was not in her possession.
  • Fixed bug that would result in the 1980s Mode “Matchmaking Results” screen appearing at times it shouldn’t (when Ryoba was in class, in the counselor’s office, etc).
  • Fixed bug that would cause the game to incorrectly go from the Student Info Menu to Info-Chan’s Services Menu if the player met a very specific set of circumstances.
  • Fixed bug that would cause a student’s subtitles to appear onscreen at the same time as the counselor’s subtitles while the player was in the counselor’s office.
  • Fixed bug that allowed the player to select the “Task” option while talking to a student even if the student had nothing Task-related to discuss with the player.
  • Fixed bug that prevented a student from being able to properly enter the “sedated” state if they were hit with a stink bomb while eating sedative-poisoned food.
  • Fixed bug that would cause a mind-broken slave to spawn with a camera in her hand if she was brought to school during a week when she was meant to be a Sleuth.
  • Fixed bug that would cause Raibaru to become confused and wonder where Osana had gone, if Osana and Raibaru both left school and the game unloaded Osana first.
  • Fixed bug that would cause “club leader” music to play after the “send rival to guidance counselor” scene, if the player had joined a club earlier that day.
  • Fixed bug that allowed the player to sabotage one of the power outlets at school (just one of them) even though nothing was plugged into the power outlet.
  • Fixed bug that caused the game to check for the outcome of Osana’s lunchtime events if the player attended school anytime between 8:30 AM and lunchtime.
  • Fixed bug that allowed the player to hear Osana and Raibaru’s Monday morning classroom conversation while on the floors above/below Osana’s classroom.
  • Fixed bug that prevented Osana’s “walk around school and visit each club” event from ending properly if the player interrupted it with a stink bomb.
  • Fixed bug that would cause an “Untag” button prompt appear at the bottom of the screen every time the player sent a photo of anything to Info-chan.
  • Fixed bug that caused the protagonist to emit a giggle every time she exited Yandere Vision, if she was crouching while Yandere Vision was active.
  • Fixed bug that was preventing Raibaru from correctly entering her “peeking around corner” animation during Osana’s Monday lunchtime rooftop event.
  • Fixed bug that prevented the game from accurately remembering whether the player had already heard Megami’s laptop speech when loading/saving.
  • Fixed bug that would allow the player to hear the sound of Osana’s stalker talking to himself on the other side of a wall in his house.
  • Fixed bug that prevented the player from getting kicked out of the Art Club if they committed murder in front of an Art Club member.
  • Fixed bug that would prevent Osana from properly exiting the “sunbathe at pool” event if she was hit by a stink bomb while sleeping.
  • Fixed bug that would make all weapons at school disappear if the player got their rival in trouble with the guidance counselor.
  • Fixed bug that caused clipping issues with the hair model of one of the female 1980s Mode students (Jitsuko from the Art Club).
  • Fixed bug that would allow the player to hear Osana and Senpai’s rooftop conversations while on the third floor of the school.
  • Fixed bug that was preventing any audio or voiced lines from playing when a rival was sent to the guidance counselor.
  • Fixed bug that could cause the police to mistake red paint on the protagonist for blood, resulting in a game over.
  • Fixed bug that allowed the player to clip into the “lost and found” box that teachers drop misplaced weapons into.
  • Fixed bug that would cause Cooking Club students to try giving food to students that were asleep in the infirmary.
  • Fixed bug that prevented a character from properly returning to their routine after discovering their lost phone.
  • Fixed bug that prevented Fureddo Jonezu from performing his “Sleuth” activities properly in Mission Mode.
  • Fixed bug that allowed the player to walk through a set of closed doors without opening the doors.
  • Fixed bug that would make Maka or Efude talk to thin air if their conversation partner left.
  • Fixed bug that caused puddles of water to be invisible in some parts of the school gym.
  • Fixed bug that prevented Osana from having the right shoes in the intro cutscene.

27 thoughts on “September 15th Bug-Fixing Build

  1. Thank you Yanderedev! I appreciate your effort could you add more storyline lore to other NPCs of the 1980s? Like Shinako, and other students. You said that in the final game, We will see Budo and Raibaru relationship over the course of the game. Why not you also add those things in 1980 mode since the mode is complete? I would love to see character development on certain characters out of the main set of protagonist and antagonist. I would love to see how far the Shinako lore can expand the overall in game story.

    I couldn’t wait until you have time and assets for those to implement in 1980 mode. But simple conversations just like the science dudes in 202X can improve the characters of 80s students so much so please consider

    • I would think that would take a lot of work, time, and maybe even some assets I would think that would be a Kickstarter thing.

      Not coming at you though! Genuinely am not! I also have things like more students or character moments outside of the main cast, but it’s still a lot of work. So I understand if this won’t happen or if it’s a Kickstarter thing.

      Who’s your favorite character? Mine is a toss up between Hazu Kashibuchi and Geiju Tsuka.

      • yeah I agree with you! I honestly think anything that isn’t related to the main story (Senpai and the rivals) should be added only if the campaign was a success and after the all the rivals gets finished

    • Ooh! I would love to see Budo and Ribaru being a strong couple XD but yeah, I’m always excited for more content and stories in Yan sim!

  2. Hi YandereDev, congratulations for all the improvements you have made, but there’s still a bug that allows you to take a sneak panty shot to a girl while she’s on her desk in her classroom, you just have to stand behind her and the result is the same…

  3. I checked the effect of particles on performance – the difference is insignificant, the average number of frames remained at ~65 frames (near the fountain). Perhaps on other PC configurations the effect will be noticeable. (AMD Ryzen 5 3500X processor, RTX 2060 graphics card)

  4. My computer is from 2015, its really hard to play, because the news build take so long to load, even the 2018 builds take long, and the trees things its great, my fps is a little better, (i wrote that in 7:30, but im sending this only 9:20 because the game was loading, thank u for that feature dev!)

  5. It’s always good seeing a mission mode bug being fixed, but there’s a particular one that’s been bugging me for months. Nemesis always wears the brown out-of-school shoes instead for the indoors white/blue shoes, even when she’s disguised. That makes it so you can easily tell her apart from other students when she’s disguised!

  6. French fans have their GLORY MOMENT!!
    YouTubers like Sora, Squeezie or KaraL, Frite… play(ed) the game and added a big part of the baguette community. (Frite’s channel because he still plays Yandere Simulator sometimes, he’s like the French Jay with less humor, squeezie is the french PewdiePie…)

    It would be cool for Frite (at least) to have a small easter egg in the game.

    After all, I’m not you, so I’ll respect your choice if you decide to ignore.

    Have a nice day!

  7. being possible to use the “Escape” key to instantly pull up the “Return to Main Menu” from inside of Ayano’s home is really useful and I love it! thanks Yan dev!

  8. When I turned off trees and flower petals, the game went from 20fps to 40pfs (when looking at the entire school population in one area).
    Just a quick suggestion: wouldn’t it make sense for someone to react negatively to you stealing any crafting items? While it would make sense to be “borrowing” paper and paper clips from the teacher’s lounge, other students should think that you’re just stealing sugar, salt, mustard, etc.

  9. Hey yandev when will there be the apathetic, broken and shrine maiden personas? Homu and Kuu Dere should have their own unique persona to make them stand out. Also Shinako Bunzai should be in the alphabet killer challenge

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