Phew! It took a lot more time than I expected, but I’ve finished testing every one of Osana’s features and confirming that everything works the way it’s supposed to. I fixed every bug I was able to find, fixed every exploit I noticed, and fixed anything I saw that looked janky. It’s such a relief to finally get past this stage of development!!

Of course, I’m pretty sure that there are still bugs in there somewhere. When I release the first build that contains Osana, it’s certain that people will discover bugs that slipped past me. However, I’ve confirmed that it’s possible to complete every one of Info-chan’s Schemes and complete every one of Osana’s elimination methods, so even if there are still bugs buried somewhere in there, there should no longer be any bugs that prevent progression or completion of objectives. (I hope!)
I have removed all “Anti-Osana Countermeasures” that prevent Osana from spawning in public builds. This means that I am now physically incapable of releasing a build that lacks Osana, since all the “Don’t let Osana spawn” code is removed. The next build I release is guaranteed to contain Osana in it, because no other option exists.
As I’ve stated before, I want the demo to feel like it’s completely different from the debug sandbox. I don’t want you to play the demo and think, “Oh, it’s the same thing as before, but Osana’s here now.” I want you to think, “WOW!! It looks and feels completely different!! So THIS is what the final game is going to look like?? Cool!!”
To achieve this goal, there are various aesthetic changes I want to make. Over the next few days, I am going to completely re-make the game’s title screen, touch up the game’s UI, and implement some graphical improvements to make the game look a lot more pretty. I already have all the assets I need to accomplish this, so there won’t be a waiting period before we enter this stage; I can jump right into it immediately.
I usually release an update on the 1st and 15th days of every month. The pre-demo graphical update will probably take a few days to complete, so I won’t be releasing a build on the 15th of this month. It’s a little difficult to predict how long this final pre-demo task will take, but I don’t think it’ll take anywhere near as long as it took to test Osana’s features.
As usual, I’ll continue to update the Trello page with my progress: https://trello.com/b/J0BiY9CS/yandere-simulator The “Graphical Update To-Do List” will probably become more detailed in the future.
It means a whole lot to me if you’re still continuing to check in on my progress after all this time! As always, thank you very, very much for following the development of Yandere Simulator!

Unrelated to Osana… sort of. But will you make it possible to put things back right where they spawned in? I find it weird that she can wash blood of weapons but can only drop things on the floor once Yanchan is done using them.
And will it be possible to pick up phones of deceased students and put them in the incinerator to destroy them? Just smashing the screen isn’t enough to destroy the data on the phone, it only makes it so it can’t be viewed on the original device. I know that one of the best ways to ensure data from a laptop or similar is completely gone is to melt it.
Will Yanchan be able to use plastic gloves from the nurses office to commit crimes? If so, I think the gloves should have some sort of durability meter.
Also, I uninstalled the game from my computer and haven’t played for quite some time (gotta keep some things a surprise) and I was never able to figure out if Yanchan can conceal a heated blade. I don’t think she should be able to as that would burn her and possible upset the game balance. How long does the blade stay heated for anyway? Can it be cooled down later?
Will delinquents, if they are near the incinerator, hear the screams of of the person Yanchan pushed off the roof and go to investigate? Will they look up so the player must hide? Will it be possible to sedate someone before pushing them off the roof and into the dumpster? If they are sedated, then all the delinquents will hear is a loud sound and assume someone got lazy and threw something into the dumpster from the roof or something like that.
I remember in an older video of yours that–I don’t remember the exact quote–you said that Yandere Simulator was a horror game where you are the monster. Would you be interested in adding special animations that have a chance of playing during snap mode where Yanchan’s victim is backing away or having any other fearful reaction besides just standing there?
I don’t remember if I reported this bug or not, but when you send a mindslave after Oka, anyone who is in the room sort of… walks towards them, turns around, go back to whatever they are doing, and ignore the corpses. This includes the student council btw. I think the system used to summon demons is interfering somehow as this only occurs inside the circle.
One last thing, I find that when the blood is censored and there are pools of blood outside on the white tile that I have some difficulty seeing where the blood is. Maybe change the tile or the flower’s color to make it easier to see?
I look forward to playing with Osana!
Fair point. I can consider it, but not for the demo.
Yandere dev will the demo have better fps?
When is around the time the full game will be released?
That depends entirely on the actions of others; not me.
how? you are the creator, that literally means everything depends on you
Read this to understand. https://yanderedev.wordpress.com/2020/07/14/where-is-osana-and-what-is-taking-so-long/
GREAT I hope no idiotic haters delay you!
Yandere dev, I’m writing this here because it won’t let me comment for some reason
Will you release an iOS version when the whole game is done, or when the demo is?
Sorry if this question is stupid
I don’t own a Mac computer. I can make a Mac build, but I wouldn’t be able to test it at all.
I think he’s referring to the other programmers he plans to hire if the games Kickstarter is successful. He doesn’t plan to code the rest of the rivals himself.
Somethings need to be checked and revised. I know the feeling of having a deadline thinking I can make it but unpredictability can step in in weird ways. Like if workers can’t make it or certain tasks actually take longer than I thoughr
hi yandere dev, i wanted to tell you that i am truly enjoying everything you are doing but i have a couple of questions:
1) when the demo is out will you put the new character models immediately, so will they be available after a demo update or will they be available only when the game is finished?
2) will you make videos where you will update us on the status of the other rivals?
3) yandere simulator is an anime-style game, in the future you will implement more cartoon graphics so maybe with cel shading etc?
1. It’ll take time.
2. Maybe, it’s too early to tell.
3. It’s already pretty cartoony as it is…
I mean it’s a yandere stealth game, I should be involved in anime cartoony stuff
anyone else notice that he is activly changing the number of things he needs to do? Kinda fishy lol
Already addressed this in the previous blog post.
Because of the sheer amount of tasks that need to get done, I couldn’t possibly remember absolutely everything on the first try. I simply wrote as much as I could think of at the time. The process of upgrading the graphics regularly leads me to remember many of the other things that also need to be upgraded. As I remember / realize what else needs to be upgraded, I update the list.
He is describing what each step entails. Rather than leave it at vague steps. He’s already ¾ done!
OH MY GOD I’M SO HAPPY YOU FINALLY DID IT!!!!! 😍😍😍😍😍 I watched the Trello list like a hawk and also enabled notifications for me to see what I missed while sleeping. BTW, How detailed will the graphical improvement list be?
It’ll get a lot more detailed in the near future.
Today I thought “Let’s see how far YandereDev is with Osana” and then he is finished. I’m so hyped!!
Yandere dev will i need to re download the game and if i do will the demo be money
No demo has ever or should ever cost money.
I have a few questions. I’ll start with three so I don’t suffocate you.
1. In the future for the “Real Suicide” method, will it not be necessary to push the victim off the roof?
2. In the future to “Poison” it will not be necessary to have to put the poison in the student’s lunch?
3. Will Rainbaru’s whole routine in the future be just going after Osana?
By the way, sorry if the first two questions I asked you seemed stupid.
1. “Real Suicide” doesn’t involve any pushing.
2. All poison methods currently involve poisoning food.
3. For now, yes.
Yandere Dev i have some questions…
once you finished osana, how much time will take to finish the rest of the rivals?
will you change the characters’ assets?
will you try to optimize the fps rate?
1. It’s too early to tell. It depends on many factors that are outside of my control, such as the success of the crowdfunding campaign.
2. I plan to.
3. It’s already a lot better than it was earlier this year.
I can’t wait to buy this game!
So after the demo will Osanas elimination methods be reduced from moderate difficulty or will they remain the same with each rival continuing to get harder
Will Osana and raibarus routine change depending on if we spare their lives after Osana week?
Will rivals have effects on other rivals such as if Osana is still alive during Hanakos week there would be a secret event that wouldn’t happen had the player killed Osana
Osana and Raibaru’s routine in Week 2 will be similar to their routines in Week 1.
This is more of a question about the other rivals but how did you come up with names for them all ? Do they have specific meanings or did you just pick them at random ?? Oh and in the future how much do you think the full game will be ? with all the rivals in and everything else that you’ll want to add !
To be honest, I named them by turning English words into Japanese words. For example, “Occult” becomes “Okaruto” in Japanese.
congrats!
OMG i’m so happyy
Hi Yanderedev!
I have some questions, but I understand if you are busy or you can’t answer because it is spoilers:
1. What happens in Amai’s week if I kill a student of the cooking club?
2. If I kill Mosume Ronshaku in the first 4 days, I can’t make sempai rejects Osana?
3. The old girls like yui rio are in the street, but will you include the old boys?
4. A strange woman is walking in the street, is important or just a background character?
5. Will you include driven to murder in the future?
Sorry for so many questions, I’ll be gratefull if you answer me one.
Thanks you!
1. Her routine changes.
2. True.
3. Not sure yet.
4. I would prefer to not say “yes” or “no”.
5. It depends on what kind of budget the game can get.
Thanks yanderedev! I can’t wait to buy the game ^0^
Oh hell yeah!! It’s all coming together!
Yay!! I’m so happy💕
OMG! Great job YandereDev! I’m so proud of you!
i know its a little too early to tell but, do you think the demo will be finished by august 23? i’m only asking because that day is actually my birthday and it would be cool to see the demo come out on my special day.
happy birthday! (≧∇≦)/ . i know this is late and i just feel like greeting someone i dont know a happy birthday lol
i’m really happy with this, keep with good work Yandev! I will always support you!
“A delayed game is eventually good, but a rushed game is forever bad” – Shigeru Miyamoto
Are you 100% sure and satisfied that Osana is ready to be released?
I guess I’m not 100% satisfied, but I think that I can’t improve Osana without getting some feedback from players.
It’s possible you’ve answered these questions in the past, but I’ll ask anyways:
1. After Osana is released in a demo build, do you plan on updating the game with more rivals one by one or finishing the game and releasing the other 9 all at once?
2. Will Senpai’s sister be a student or will we have to eliminate her in a more unique way?
1. It’s very complicated.
2. She will be a student.
Yandere dev, I have a question
You still plain to change Yandere Simulator’s name?
(I am from Brazil, my english isn’t very good)
It’ll probably just remain “Yandere Simulator”.
Just wondering. Have you instanced the benches and fence railing on the rooftop yet or are they subject to change for some reason? Also I hope all the static furniture has been meshed properly! 😉
I’m updating my build as we speak.
I recently asked a 3D modeller to reduce the polygons of the fence railing.
so i log i see the words ‘shes done’ and have a literal spasm!
Yandere dev, will you improve Kokona’s Tutorial BEFORE the demo is released or AFTER the demo is released?
If it goes into the game, it’ll be *after* the demo.
Thanks for responding! And what I meant was “Will you put…” and not “…improve…”.
I’m sorry but I’m Italian… and it’s a little bit difficult for me to remember all the exact verbs I have to use… I can’t wait for you to release the demo… It must be so stressful for you that a lot of yandere simulator fans are criticizing you for taking a lot longer than you thought… but anyway I will always support you. 🙂
OMG sorry… I wrote too much, hope you like it…
Yandere Dev I have a question. Will the Yandere simulator be renamed for the release of the demo version, I think the word “simulator” is not entirely correct for this game. Besides, you did a poll about the new name, where the majority voted for the new name, thanks for the answer, have a nice day
I’m sorry, the name “Yandere Simulator” will probably stay forever.
what? Thats not true
Oh my God! I’m so happy!
When will the next update come out?
How much are you thinking the final game will cost? Do you have a plan yet?
https://yanderesimulator.com/about/
Yandere dev pls add V-Sync on yandere Sim. When I play yandere Sim estatic appear on screen (and I’m not in snap mode) and that happens with the other games when I disable the v-Sync
hey yandere dev i was wondering when osana come’s out is there gonna be more weeks or not until the other rivals come out
The demo will only be Week 1.
so you won’t make new “demos” with additional weeks?
Quick questions!
Do you plan to make learning in class more difficult instead of just pressing a subject to improve?
Is Ayano gonna have more classes (like PE in the gym) instead of just staying in one classroom for all classes?
Do you plan to make the pool “swimmable”?
If Ayano skips enough classes will she be expelled or suspended?
1, 2, 3. I’m sorry, it’s unlikely.
4. Yes.
*cheering and dancing*
GO! GO! GO! GO! GO! GO! GO!
Yandev i have some questions…
1- Can yanchan recover senpai’s sanity after killing Osana and/or Hanako?
2- Students who have been framed be released from prison after other murders? Or a more enhanced police investigation. Because it is a little weird that they investigate the murder for just one day, and then “abandon” the case.
3- Will Megami confess to Senpai or just expose you?
4- Will Ayano’s parents appear at the middle of the game?
5- If the player kill Raibaru, and she get rejected by Senpai, will Osana’s routine change?
6- Would be able to Ayano interact with Info-Chan, not only by messages, but face-to-face?
(Sorry for my bad english) Thx u for develop this amazing game s2
1. It would be possible, but would require a lot of grinding, spamming lots of gifts and notes to Senpai.
2. It’s unlikely; I’m sorry.
3. You’ll see.
4. I’m sorry, it’s not likely.
5. It won’t change that much from how it’s currently set up.
6. Maybe! You’ll have to wait and see!
Awe I wanna see her parents and stuff
The hype is real! I can’t wait to start throwing a bunch of money into your crowdfunding campaign. After working a lot of time in this, you’re getting close!
Hey Yanderedev,
I didn’t know if I should email you or not because I’m confused. I joined the light music club to get the cello case so I can sneak a body pass the delinquents but I can’t pick it up not put anything in it.
I’ve been reading to make sure you haven’t made it as a prop or not but I can’t find anything about this and I feel kinda stupid right now. Please tell me this is just a bug
I’ll investigate. If it’s a bug, I’ll fix it.
It’s happening to me too, it’s not just you.
Yandere dev tengo algunas preguntas:
1) Habrá estudiantes que sean chicos y se enamoren de chicos y con las chicas igual, algo tipo yuri o yaoi?
2) habrá eventos de sabotaje fuera de la escuela, por ejemplo: en el cine si osana va con taro podriamos sabotearlo.?
3) pondrás a los estudiantes mochilas y animaciones para dejarlas en su silla ?
I’m not that good at English, but I wanted to say, that I still supprot you because we are all humans, nobody is perfect, I will be here.
And I’m really excited!
I am so happy that you continue this game, I really love it! Thank you so much for your time. ❤️😄😄😄😄❤️
Yandere Dev I have a few questions;
1) Will there be yaoi characters and yuri characters?
2) Will you make the students take backpacks and leave them in their classes, will you add this feature that requires animation?
3) There will be events to eliminate rivals outside of school, for example when Osana and Taro go to the movies: you could take the money from Osana and have Taro pay for it or also that Ayano works there and accidentally bumps into Osana and throws it at him Drink to Taro, this feature requires more part-time jobs and a bigger city.
4) What will happen in week 2 if Raibaru stops being friends with osana? And what if they continued with their friendship?
1) Maybe, but not openly. I wrote about this on the About page of the official website.
2) It’s unlikely that this will become a feature in the game.
3) It would be cool, but it depends on the game’s budget.
4) They’ll either spend time together, or spend time apart.
Thanks so much 😁
We need yo help his budget!
Dear Yandere Dev, I’ve been on this fan base for many years and to see the development of the game come this far brings tears to my eyes. I’ve loved this game ever since I found out about it. But, I didn’t know who the person behind the development was, I found out that the developer had a YouTube channel so I obviously looked into it. I watched all the videos and waited for new updates to come and watched other YouTubers play the game. I absolutely love Yandere Simulator, but recently I’ve heard that the developer of the game I love was not who I thought he was. I looked into it just to find a lot of hate and all I have to say is I don’t care, to be honest my childhood was 30% yandere simulator. I have a soft spot for it along with the developer and to hear the things that may or may not be true just is very sad. So I don’t care if the game isn’t finished yet, it only matters if the game will be finished in the end. So please no matter what others say please just keep working on Yandere Simulator, I look forward to the day it’s finished, even if I have to wait 6 more years Ill still be here till the very end. Thank you for reading and making Yandere Simulator.
Hello! I`m watching your game develop process since 2015 and I`m so glad that Osana is finally coming! Haters is nothing as long as u have fans like us! So I very hope that You okay now and nothing will stop game progress 🙂
Thank you very much for developing Yandere Simulator! I’m really happy that you almost reached the goal to make YS’s demo. I hope nothing will be able to stop you from completing the development.
After you create the Osana trailer, what will you do before you release her?
I don’t get why people are being so impatient with this game. You’re a single developer, doing literally everything, of course its going to take a fuck ton of time. Maybe it helps in terms of understanding your situation that I have some experience in programming game mechanics, but this shit takes a whole lot more effort than people seem to think. As for your bad rep, well, I don’t give a damn. If something great like yandere simulator exists, why should we the players care about the nature of the developer? It’s just a game. I fully support your development efforts and will be patiently awaiting every update.
Thank you. I wish more people could be as reasonable as you are.
I think if more folks tried their hand at programming, they’d understand why it’s taking so long. Too bad that will likely never happen.
Its still beat to combat everyone with lpgic, truth and proof! To get as many people back on your side as possible!
Hi! I quick question about the new post processing effects. The list says that they’ll be applied to the school scene, but will they also be present in Ayano’s home, the street, the befriend/betrayal cutscene, Osana’s home?
Yes!
Gambatte kudasai, I think I will do the 1 dollar donation if I can.
Hi YandereDev!
I know you’re too busy working on the graphic update, but I hope you’ll find time to answer to my question:
What will you working on after you release the Demo with Osana?
Will you work immediately on Amai? Or you’ll work on other features? For example changing characters’ model or the Yakuza, ecc..?
Thank you for your Reply!
I hope you have a nice day and I wish you good Work!
I wrote a very long answer to this question on my subreddit, but if you can’t access the subreddit, I’ll give a shorter answer here:
It depends on how people react to Osana.
Why did it took so long?
This is why. https://yanderedev.wordpress.com/2020/07/14/where-is-osana-and-what-is-taking-so-long/
Hes said why in the previous one and the post before and the debunk oage. So, he probably won’t repeat himself all over again and instead direct younthereb