Yandere Simulator

by YandereDev

Uncensored Windows
Versionv2026-05-15
EngineUnity
Released2026-05-15
Updated2026-05-25
LanguageEnglish

Yandere Simulator is a stealth game about stalking a boy and secretly eliminating anyone who seems interested in him, while maintaining the image of an innocent schoolgirl. In the game, players control a Japanese highschool student named Ayano "Yan-Chan" Aishi, who must eliminate other students who compete for her love interest.​

Changelogs 2022-04-15 - The headmaster now has 17 voiced lines in the 80s. 5 for when you enter his office and stand far away, 5 for when you enter his office and stand really close to him, 5 for when you walk around inside his office with a cardboard box over your body, 1 for when he is delivering a eulogy at a dead student’s memorial, and 1 for when he is shooting you with a tazer. - If the Light Music Club closes down, the 5 musicians of 1980s Mode lose access to their instruments. This resulted in a bug where the musicians stood on stage during Ai’s week without instruments. This bug has now been fixed; they won’t perform on stage if their club has been shut down. - Added a portable bunsen burner to the game. This is to allow the player to set students on fire even if the Occult Club has been shut down and the player has lost access to the candle. The portable bunsen burner is found in the Chemistry classroom. - The “Use Photo of Senpai to Restore Sanity” feature now deletes the photo from Ayano’s phone, to explain why it cannot be “Used” again and why she loses access to the “Gaze at photo of Senpai to speed up time” feature. - From now on, if the player runs into a student soaked in gasoline while holding an open flame (such as a candle or portable bunsen burner) other characters will recognize this as a deliberate murder attempt. - The boys who follow Chigusa around school in 1980s Mode will now stand further away from her when she is meeting with someone, such as when she’s talking with Ryoba on the school rooftop. - Type the letters “M E D I B A N G” while at school to change Yandere-chan’s outfit to the outfit designed by the winner of the Medibang Art contest! - The training dummy in the martial arts club was not broken until 202X, so it will no longer be depicted in a broken state in 1980s Mode. - The protagonist’s footstep sound effects are now “bare feet” sound effects when the protagonist is wearing the martial arts club attire. - Removed the “Change Shoes” button, since it became non-functional after shoe-changing began to happen automatically. - The act of picking up a collectible in the asylum no longer makes a loud clunking noise. - All teachers now have different bust sizes instead of each having identical bodies. - Improved the appearance of the planters on the school rooftop. - Updated the textures for Mai Waifu, Midori, Pippie, and Ryuto. - Updated the clothing that Ryoba wears in the street scene. - Updated the character models used by the 202X teachers. - Updated Himedere’s hair model. - Updated Kiba’s hair model. 2022-02-14 Fixed bug that caused a rival to return to her desk instead of continuing to her destination, if the player spoke to the rival when she was between her own desk and Senpai’s desk, but only on Friday. Fixed bug that would cause jogging students to lose their walk animation and use a jogging animation as their walking animation if anything interrupted their routine while they were jogging. Fixed bug that prevented the game from recoginzing that a tranquilizer/sedative was no longer in Yandere-chan’s inventory after it had been used to tranq a student in the gym storage room. Fixed bug that caused the game to skip past Monday and go directly into Tuesday if the player used Sunday as a playable day instead of skipping it. Fixed bug that prevented the player from using the “Escape” key to summon the “Exit To Menu” window if debug commands were disabled. Fixed bug that prevented the game from acknowledging that a club leader had died/gone missing under certain circumstances. Fixed bug that caused the text box in the End-of-Day results sequence to clip into any 3D models directly in front of it. Fixed bug that would cause an object to become stretched out while it was stashed inside of a weapon bag. Fixed bug that caused the game to never advance past Sunday if the player used Sunday as a playable day. Added the optional “80s blue tint” effect to certain scenes that didn’t previous possess the effect. 2022-02-11 In 1989, it is possible to use a lockpick to open the nurse’s medicine cabinet. However, between 1989 and 202X, the cabinet is upgraded with a more secure lock. This means that, in 202X, the player is not able to open the cabinet using a lockpick. Many players were reporting this as a “bug.” To make it clear that this is intentional and not a bug, a message saying “Cannot be lockpicked!” will now appear when attempting to lockpick the nurse’s cabinet in 202X. If a delinquent sees a corpse, he is supposed to run out of school. There was a bug that would make the delinquent boys forget about leaving school and go sit on a bench, if they were defeated in a fight after witnessing a corpse. This bug has been fixed. Fixed bug that prevented the game from correctly remembering whether or not one of the garden plots was occupied by a dead body, if the player saved, buried a body, advanced to the next day, then loaded their earlier save. I realized that “only one tarp bag spawns when you dismember a corpse on top of a sheet of tarp” was not a bug, it was how the feature was supposed to work. So, the feature has been reverted back to how it originally was. Since 1980s Mode takes place after Ryoba had already been stalking her Senpai for 1 year, the Senpai Shrine in her room is now filled with items from the start of the game. Fixed bug that allowed the player to enter first-person mode and rotate around, during points of the tutorial when Ryoba was not meant to be able to move or turn. Fixed bug that caused the protagonist’s bookbag to float in midair when loading a save file, if the player was wearing a bookbag when the save file was made. Some of the delinquent boys’ profiles were mixed up. (Backstories intended for one boy were in another boy’s profile.) These errors have been fixed. Fixed bug that would cause the day to prematurely end if the player reported Osana for vandalism on Thursday morning instead of Thursday afternoon. Fixed bug that caused the week to reset back to Sunday if Ryoba was suspended from school for a length of time that would push her into next week. Fixed bug that prevented the game from accurately remembering the position/rotation of the shovel, axe, or circular saw when loading a save file. Fixed bug that caused the “Pool’s Closed” sign to change female students’ routines even on days when they didn’t plan on sunbathing at the pool. Fixed bug that prevented the game from remembering the player’s settings for particles and color grading when loading into the school scene. Fixed bug that caused your Mission Mode target to refuse to check their locker after being told by the protagonist that a note was inside. Fixed bug that prevented student portraits from updating properly if the player used the “Provide Student Info” service from Info-chan. Fixed bug that caused the “Reputation will update after attending class” text to appear during Mission Mode, where it is irrelevant. Fixed bug that would cause an unintentional subtitle to display at the bottom of the screen after reporting a corpse to the teacher. Fixed bug that caused the end-of-day text to incorrectly report Ryoba’s suspensions as being shorter than they actually were. Fixed bug that caused the screen to turn blue in 1980s Mode if the player pressed the “E” key while in first-person view. Fixed bug that would cause a female character’s chest to resize itself after the player had completing a task for her. Fixed bug that would cause one of the male students in 1980s Mode to lose his hair model when he witnessed a murder. Fixed bug that would cause some students’ routines to be incorrect if the player loaded a save during Osana’s week. Fixed bug that prevented the player from being able to pick up any object that was dropped in a puddle of water. Fixed bug that caused the game to believe that a 5-day suspension was the same as getting expelled from school. Fixed bug that caused Mai Waifu to perpetually walk in place if Midori was dead during Osana’s week. Fixed bug that caused Raibaru to slide across the ground in front of Osana in some circumstances. Fixed bug that caused Ryoba’s hair to clip into the camera while walking in first-person view. Fixed bug that allowed the Magical Girl Pretty Miyuki minigame to be accessible in 1989. 2021-10-18 With full 80's mode complete, with 10 rivals! ....and other stuff ??? Osana Release Pretty much everything I wanted to say today is contained in that video, but there’s just one thing I’d like to elaborate on…bugs! I spent the past 6 hours hunting for bugs in the build, and actually found a bunch of critical game-breaking glitches! Bugs that made the screen turn white and never return to normal, bugs that made multiple scripted events occur simultaneously, bugs that made Yandere-chan blink out of existence during cut-scenes…I managed to fix every issue that I encountered, but dang, I’m really glad that I decided to bug-hunt before releasing the demo! Because I could easily find so many issues during a simple, cursory playthrough of the demo, I’m sure there are other issues that escaped my notice. This first release of the demo is doubtlessly going to be a bit rough around the edges. I’ll probably spend the rest of the day watching people stream the demo so that I can take note of bugs and quickly prepare a bug-fixing update to release within 24 hours. If you run into any issues, I apologize in advance! There’s only one thing that I foresee being a problem. I usually test the game at a resolution of 1280×720. I recently learned that the depth-of-field effect looks different depending on the resolution that you’re playing the game at. So, if the game looks blurry for you, you might want to try switching to a resolution of 1280×720, until I can release an update that makes the depth-of-field effect appear consistent across all resolutions. While implementing Osana, I made dozens of fixes / changes / additions / improvements to the game. Because I was making so many rapid changes to the game, I didn’t actually log most of the fixes/additions. I can show you a changelog, but it won’t actually be a complete list of all the changes. Click “Continue Reading” if you’re interested in seeing it, anyway! Fixed bug that would cause a student to attempt to attend a “meeting” while standing at their desk, if the player arranged a meeting with that student and then advanced time by attending class. Camera sensitivity when aiming Yandere-chan’s phone camera is now determined by the Camera Sensitivity option in the Settings menu. Removed exploit that allowed the player to kill without consequence if they were standing in the middle of the Occult clubroom. The button prompts that appear at town will now change depending on whether the player is using a keyboard or controller. It is no longer possible for characters to get trapped if the player blocks their path using a jug of bleach. Fixed bug that allowed the player to stop a student who had been “Sent Home” by aiming a camera at them. Fixed bug that allowed the player to use the “Send Home” feature on a student who didn’t have a phone. Fixed bug that make it impossible to pick up the cello case, even after joining the Light Music Club. It is no longer possible for characters to get stuck at the entrance to the gardening club. Fixed bug that made it impossible to pick up one of the tapes in the basement. The Hardware Store on the street now has a shopkeeper. Implemented Osana
Time Paradox 2025-12-25
I remember playing this game in 2017, is quite fun with Sans mode (Parody Undertale), and when back to check this game after playing MiSide, and of course as usual the dev always disappoint, it already decades passed and the game never optimaze or friendly to modder, the game source codes itself already a mess put together to build a game and somehow worked, just that all nothing good about it. Also i more appraise Two Russian dude with a Vodka who able to achieve what The YandereDev can't achieved in decaded.
Krieger Season 1-6 2025-12-22
Call me when there is an R18 Version of this or a mod. Until then, no idea why this is here. I suppose it could be mildly erotic, but just mildly. If you've been in the internet you should already know what this game is all about. No H here
Kelfistan 2025-11-09
This a generational mess of a video game, there so many different better games that came out over the DECADE. Yeah, let's move on. The game graphics does not look anything at all polished. This has been the same game over and over and barely anything has changed.
Silver Steelclaw 2025-11-07
i came back to yandere simulator after a few years and now it's shit remember saitama mode ebola chan and other stuff to just having fun when you kill everyone? dev remove all the fun and put bullshit lore than nobody asked for. what's happen to the funny schoolgirl murder game from 2015? now it's just a generic hitman cheap copy with schoolgirl
Deleted member 4074446 2024-09-20
Game's poorly optimized, fairly boring and weird objective. At least I can spy on our MC in the shower... I can just kill everyone with quite ease to kidnap our target!!! Reading the code provided my more entertainment than playing this game. Honestly, this game made me learning programming so I get in on the joke. So for that I give it 2/5 - for helping me how to learn to code so I can understand just how garbage the code is, thanks yanderedev
Dudenator 2023-10-26
Dear lord i remember when this first appeared on 4chan a decade ago. Things were good back then, progress was being made and fun videos popped up every couple of months but then as the first two years went by less and less new content was added and more and more easter eggs flooded the game instead. Promise after promise resulting in nothing but excuses and the more people learned about what was going on behind the scenes the more people began to realise just how bad things had gotten or rather how bad they had always been. A decade on from those early days on /v/ and this game is still nowhere near complete, full of bugs and glitches oh and of ofcourse the complete and absolute non existence of optimisation. That is what a decade of donations has gotten it's backers. It's honestly sad when i think back to how much promise this game once had but YandereDev has more than earned the ire and contempt that is directed at him.
HentaiGeheBoiz 2023-10-14
Desperate days require desperate measures. Cons: Yandere dev Runs like shit Not porn game Pros: No TLDR: He should have went with whole sex thing he had before in this game. Probably would have had more content.
DirectXD1943 2023-09-21
Anyone that knows anything about this game, knows that it's hot garbage. Literally from the FOUNDATION, the CODE ITSELF and outwards, there is nothing about this game that can be considered good. A game with such a simplistic concept that has been developed for over, what, a decade now? And it is STILL this atrocious. It is genuinely a disgrace. There is no game worse than this one.
Farfadux 2023-07-12
Bad game and bad developer, nothing more to say, don't waste your time with this. There are many other games and devs which need your support, just stay away from this game, the community that follows it is toxic, its creator is toxic, and the game itself is any programmer's nightmare.
Sinnerspride 2022-05-08
tl;dr : Game made of funny noodle code made by funny noodle man. Genuinely, anyone who wants to make a game- ESPECIALLY in Unity- would benefit from playing this game. This game is a perfect object lesson in making a ton of beginner-level mistakes and iterating on them before you've checked your work. This game truly needs no introduction. The idea of taking out the various rivals and immersing in the Yandere trope isn't actually a bad one at its core. How it's executed is often frustrating (fuck you, Amai), and lacks critical instruction. Info-chan can be a little helpful in pointing you in the 'correct' direction, but ultimately what is frustrating about these 'right ways' is that they are all meant to be equally difficult, and so don't end up rewarding the player for critical thinking at all. In all fair play, after YanDev made the change from JavaScript to C# awhile back, and the game DID run a bit cleaner after that. If you have watched any piece of media covering Yandere Sim, you likely have heard that his code is spaghetti. This is true. A hallmark of his style is multiple long chains of 'else-if' statements set in update loops for every NPC in the game. Further, one of the drawbacks of using a fuckton of high-poly, store-bought assets and implementing no LOD means that, regardless of where these models are, they are rendered at full detail. If this were one, two, or even ten, there might not be too big of an issue. But, the game renders a large number of these NPCs to populate the school.
manWHAT 2022-04-20
The review below is ONLY about the game. If I were to get into the history behind the creator and the weird shit he's involved in this would turn into a whole essay but other people have already done that and made it extremely interesting to follow. Trying to keep it short, the two main things that absolutely kill this game is the technical faults and the lack of content. Turn this game on and you'll push barely 30 FPS on a mid-tier gaming computer with your fans sounding like jet engines. Just horribly optimized. As for the content, it's been out for years with nothing to show for it. More and more promises on characters and storylines come by with few of them ever really fulfilled.
microskills 2022-01-09
Honestly it's hard writing anything positive about the game, it is the best case of should have crunched and made a mediocre game than this sad joke. At best it simulates the experience in a very clunky fashion. It has sandbox ambitions but you're still locked into a semi-story but the story itself is void of anything noteworthy. Beyond the bugs and the crashes it just doesn't deliver anything engaging and it's clear that the developer/creator were banking on the "simulator" craze but out of clear inexperience wants to make the most "polished" game before release while also adding more bells and whistles without ironing out the details.
h4x 2021-10-26
The very troubled history of this game and its current state make me loose hope, that this is going to get close to finished any time soon. It lacks critical content, is poorly optimized and has the development-pace of a mountain. Its only going to get better, if YandereDev hands over this game to someone that is actually good at making games
kimers1 2021-10-21
Yandere dev did it and that's enough to understand that everything is bad, but the game is 4 out of 10, it's a pity that he abandoned the main game, I'm very sad but I'm not crying sorry for my bad English, I just don't give a shit
Shinarau 2021-10-20
its yanderedev thats enough to dislike this game. not to mention countless bugs, terrible optimization and game being not even close finishing even tho its "been" in development for years. for the love of god dont support yanderedev and just let this game die
Elhidino 2021-10-19
This game is probably the most unoptimized piece of garbage ive yet to witness. It lags on high end pc(HOW) There is close to 0 content added after years of development(Once again, HOW)and currently there is not much of it anyway(A lot of vague and unfinished ideas) I wouldnt recommend touching this unless you hate yourself. The only reason this has 1 star is because thats the bare minimum and we cannot go to minus points(Which would for me hit immediately minus 8)
daunt 2021-10-19
It´s a piece of grabage, unfortunately I can´t be impartial in this case simply because almost a decade ago I played this game´s "demo" (which at this point is basically the same it´s available now with tiny droplets of """new""" content) and after this much time it´s still the same, it´s understandable that sometimes games may delay or content just comes slow because of the many reasons games like this go slow be it small teams or any of the like but this one along with the other game about raising monster girls on a farm are 2 of the oldest scam games that have been trying to stay alive by leeching unto unsuspecting people which don´t know a thing about them. Even today I like the concept of this game but to give it anything besidesthe lowest score is just naive and insulting to anyone who actually put any faith on this scam game and just received years of silence and basically a middle finger to the face after being patient and supporting the dev.
kaizoman 2021-07-22
this is an honest review about what there IS in the game. not about the promises alex (the dev) made, about alex himself and his very concerning past, etc etc. the game is a mess. thats it basically. broken unbalanced dead content everywhere. nothing to do. boring as hell. god awful settings that do nothing. im going to keep this short because i really dont wanna start drama but the game is absolute garbage and i have 0 idea why the hell this is even on this page. even none sexual content games are at least laid out in a lewd way, this literally has nothing to do with porn. as alex himself said "this is a combination of hitman and persona 5, but even better".
L_sir 2021-07-17
Just gonna give a fast update or take on the situation of the game -Its been 7 years when this was still in its alpha and 2 years pass on its promise deadline release of the full game. - my fps is gone. tnx
TessSadist 2020-09-01
I actually vaguely remember hearing about this game somehow many years ago, and liked the concept quite a bit. I was pretty interested in seeing it on this site as it had completely escaped my mind. However, I have to echo what a few other reviews are saying and it's not fantasy or rumor for me, but it just happened today. I don't have a super computer by any means, but it is good enough to make decent renders for my own game, and play normal games with reasonable 60+ FPS. This game just doesn't have good performance technically. It's bad enough that it completely detracts from both immersion and enjoyment. I am still giving it two stars because I like the concept, but I have no hope this game will technically be able to perform long-term, and that's not even considering the ambitious scope of the game which might make it worse.

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