I’ve got a very long and detailed progress report for you today, with some promising news about how close I am to finishing the 10 Rivals Update! To read it, scroll down past this beautiful artwork by yu-yumihana!
Now that you’ve admired the gorgeous artwork, click “Continue Reading” for the rest of the blog post!
What have you been up to?
My previous two progress reports were deliberately very vague to avoid spoilers. However, the features that I worked on over the past 2 weeks were much more broad in nature, so I can actually be much more detailed this time around! It’s kind of ironic how things worked out that way. Here’s a bullet-point list covering most of what I worked on during the second half of July:
- I’ve updated the Calendar screen and Student Manager script so that the game is no longer locked to only 1 week, and can advance forward for 10 weeks, spawning a new rival each week. As a result, it is now possible to eliminate 10 rivals over the course of 10 weeks! I can now experience a “complete” playthrough of Yandere Sim from beginning to end!
- In the Osana demo, Sunday was not a “playable” day; it was reserved for a cutscene. As of now, Sunday has become a “playable” day. The player can use this day to go to town (but not school) to earn money and buy things in preparation for eliminating their rival over the subsequent week.
- I’ve created a new “rival event manager” so that all rival events can be governed by one script, instead of each event requiring a unique script. This has made it MUCH easier and faster to implement new events! (Let me explain it this way: with this new script, what previously took me a week to accomplish now only takes me a few hours!)
- I’ve created a simplified system for sabotaging rival events. It is much less elaborate than the pre-existing system (which had dozens of unique animations and a unique script for every event) but this new system makes it much easier to rapidly put new rival events into the game.
- As a result of the new event manager and the new system for sabotaging rival events, the events that the 10 rivals are going to use are now in the game. (Admittedly, they are much less elaborate than Osana’s events, but I did what I was able to do without the addition of new animations.)
- I’ve created a new system for interacting with a rival’s bookbag. The player can now search through a rival’s bookbag to learn what kind of boys they like, learn their likes and dislikes, learn what has been happening in their life lately, and poison their bento anytime before lunchtime.
- I’ve adjusted the system for reporting a rival to the guidance counselor. Instead of “You can only report panty shots on Monday, you can only report theft on Tuesday…” the player can now frame their rival for breaking any of the school’s rules on any day of the week.
- Because the 10 Rivals Update won’t feature any new animations or voice acting, the “Rival confesses to Senpai” cutscene has been simplified. But, on a positive note, it is now possible to get through the cutscene more quickly by pressing a “Continue” button to advance the cutscene manually.
- I’ve begun work on some of the “each week gets harder than the previous week” features. For example, each rival will be more paranoid than the previous rival, so as the weeks pass, you will need a higher and higher reputation in order to convince a rival girl to listen to your requests.
- I’m about halfway done implementing a new matchmaking system. The exact reason why the game needs a new matchmaking system is kind of a spoiler, but you’ll understand once the nature of the 10 Rivals Update is revealed. The new matchmaking system is much faster and more streamlined than the previous one.
Anything else?
There are a lot of other things I could have added to the above list, but most of them wouldn’t be very exciting or glamorous. For example, there were a lot of scripts in the game game that were hard-coded to display the name “Osana” when referring to the player’s rival. All of those scripts have been updated to display the name of the current rival, instead of always displaying Osana’s name.
That’s actually a huge part of the process of adding 10 rivals to the game; updating nearly all of the game’s systems so that those systems are compatible with any rival girl who is added to the game, instead of applying to Osana exclusively. It’s very tedious work, and I would probably bore you to death if I described the entire process here, but it’s still absolutely mandatory nonetheless.
Well, one part of the process might be interesting to you! I’ll share a short anecdote…
Bento Theft
In the current version of the game (the “Osana Demo”), Osana refuses to accept food from you on any day except for Thursday. To learn that she’s hungry on Thursday, you have to eavesdrop on a conversation she has on Thursday morning, where she reveals that she skipped breakfast that morning.
The reason why she refuses to accept your food (outside of one circumstance) is to prevent it from being too easy for the player pull off the electrocution elimination (which requires the player to feed salty food to the rival in order to make them thirsty enough to approach a drinking fountain, where they can be electrocuted).
The idea is that, in order for the player to “earn” the right to electrocute the rival, the player should have to be perceptive and study the rival to learn about the one time when she’s hungry enough to accept food from you. This design decision was made to encourage “stalking” gameplay.
However, I’ve decided that this is lame. The player’s options should be determined by the player’s actions, rather than an arbitrary timeframe decided by the game’s developer. Osana should accept food from the player because the player did something to unlock that option, rather than because it’s a Thursday.
So, I’ve added the ability for the player to steal the rival’s bento before lunchtime, which will make her hungry later in the day, which will cause her to accept food from the player (and, thus, unlock the electrocution elimination). This way, the player’s options are determined by the player’s actions.
This is the type of improvement I’m making to the game as I implement the 10 rivals; I’m looking at aspects of the game’s design that suck, and fixing/replacing those aspects accordingly. This update really is turning into “Yandere Simulator 2.0” – in order words, an almost complete revision of nearly every system in the game.
What’s next?
At this point in time, what I’m currently working on is playtesting each elimination method to make sure that all of these new, updated systems are working as intended, and that nothing broke or became non-functional as I updated other areas of the game. It’s very tedious, time-consuming work, but it’s still an absolutely essential part of the process.
This process of changing / replacing the game’s systems will be over relatively soon. Once that is over, I will shift my focus to giving each of the 10 rivals unique circumstances. After that, the only remaining task will be to create an end cutscene, playtest everything to make sure it all works, and then make a video announcing the new build!
Wow – it feels like I can see the light at the end of the tunnel! I feel really bad that I haven’t uploaded a new build in over a month, so I’m super eager to release this build and end this “content drought.” I’m really looking forward to seeing how people will react to this update!
Thank you very much for your patience, and thank you for following the development of Yandere Simulator!


Wow.Cant,wait YandereDev.Looking forward in it.
Woah that’s fast! Can’t wait to play this when it’s out!
Wonder whats gonna happen when this is all said and done, im sure looking foward to it
I really can’t wait to see all these features in the game! I’m really looking forward to it!
This is exciting progress :O though I do have a question about something.
Unless I’m remembering wrong, you mentioned somewhere that you planned on making three videos with the release of the build. Has that changed to one, and if so, will the video be released on the day of the build or the day before?
Thanks in advance.
He never said that?
Hm…maybe I am remembering wrong then.
Me waitin for Jay from the Kubz Scouts to play it
Same.
omg same Jay have never failed to make my day
Same
woah, are you planning to post the build this month?
Hello Yandere Dev! I saw you say that most of the information about the history of the game would be outside of the game. I find it a pity ! Why not add in ” Extra ” a feature to unlock information about the history of the game? For example : Any Ayano childhood videos you posted could be unlocked in-game and found in ‘Extra’. There could also be other videos, or other formats, that will better understand the history of the yandere simulator. Thus, the player would not have to search everywhere on the Internet to know more about the background of the game. And you on your side, you will know where to integrate elements of the story. 😊
I look forward to this update! I have been following development since September 2015!
You are the first developer who interested me, and whom I followed! (and the last one currently) xD
I completely agree, I also know yandere simulator since September 2015, and I think the idea of having videos inside the game, in the extras part, it’s a great idea! I hope Yandere dev will answer you!
Thanks you !
But Yandere Dev did not answer me. 😔
Yanderdev may I ask even though your not asking for them can people still send in new animations and can you like add an updated note to this post about if we wanted to send new voice lines to you what you would need them to say
I’d love to help with voice lines for student conversations, specifically voice lines lol
So, you overhauled the game to just add the ability for the rivals, fixing mechanics and new mechanics.. neat tbh
Ooo! This is all happening so quickly, I honestly didn’t expect the “10 Rivals update” to progress so swiftly! Good job, YandereDev!
Wow.I am so excited.Good job,YanDev!
This
Is SO GODDAMN COOL!!!
I’m so happy and proud of your rapid progress ❤ ❤ Thanks for sharing your progress with us!
in the final game will events have voice acting and new animations
Yes
c’mon yandere dev you can do it
Вау, ЯндереДев это так круто. С нетепрением жду новой сборки. Хорошо, что вы не забросили проект за такое долгое время.
this is the best start for my month…..i hope everything goes smoothly….and take care of yourself too…..
Question, will the 10 rivals build cost any money? Considering it’s basically the full game already, minus some assets and such.
No
Do you know the Date of the new build?
Btw i love this artwork from Budo and Ayano. He his my senpai and i love Umeji too ❤
I have a release date in my mind, but I don’t want to say it in case I fail to hit that release date.
I am happy to say I have stuck around since Taro stood underneath the tree at the front of the school. It’s been a long ride, but I don’t regret anything! This game has been there for me in dark times and I have made many friends in this community. So thanks Yandere Dev! I know it’s going to be great and remember to take care of yourself! 🤗🤗🤗
Taro standing under that tree though…good times…
I’m so excited about this!! I have a question, when the big update come out will you make a blog explaining everything you added? Well, if you don’t do it it’s okay, i will get lots of fun searching those things myself
I am curious to see those new systems. Judging from the update list, this new build is going to feel like a new game because of all the changes.
Thank Yandev for doing all of this for us, this game is very important to me ❤ I've always followed Yandere Simulator, and I will continue to support it no matter what! Keep up your work, your true supporters will always be by your side.
😀
Eek! I’m so excited for the new update. Thank you for providing us with these so we actually know what’s going on.
I cabt wait, Do you have an estimate for release or is it still to hard to guess an approximate?
Good job Yandere Dev!
Great job Yandev 🙂
But there is a problem with some clubs, the drama club has members who have purple hair, the occult club has blue hair, and the music club has members who have colored hair and styled, don’t you think about making Yandere-chan can dye her hair like the rest of the members and Instead of buying from Nozama, she would have her hair styled and dyed in the bully club if you thought to put it in the game, because it doesn’t make sense for all members to have uniform hair and Yandere-chan doesn’t
As somebody who has been following the game since around 2016, my heart is pounding for this update to be released!
hi! and i wanna say that im so excited for the new update!! i have been sick so i cant really do anything like hang out with my friends or o outside in the risk of making someone else sick. so ive been playing yandere simulator alot!! your doing awesome work and im so excided for the progress that youve been doing. (:
You said:
“Yandere Simulator will be free until I am ready to include two rivals in the game. After that point, the game will have so much content that it will no longer be reasonable to give it away for free, and I’ll have to start charging money for it. After the second rival has been implemented, but before the final release date of the game, Yandere Simulator will be sold for a very cheap price (probably something along the lines of $5).”
This one will contain 10 rivals.. it will be free?
Yes, this next update will be free. This isn’t the last update since YandereDev did say there is still more to add after this. One of those updates will cost money, but you won’t have to worry about it anytime soon! :]
Yep
Great job, keep up the good work! I am sure that the 10 rivals build will be amazing.
One question: Will Dracula-chan’s model be changed?
Eventually, all store-bought models should probably be removed from the game.
Hmm, could the player just… put salt in the bento? Like poison but, you know… salt
What a great birthday present!
After all these years, I think I speak for everyone when I say I’m incredibly excited about seeing the rivals in game! Thank you for all the work you have put into this great game 🙂
Wish the update would have new things:/ its the thing that dont make me so hyped
…have you been ignoring every progress report I’ve written so far? The whole point is that I’m adding a whole bunch of new things in addition to the 10 rivals.
chile- go back and read the last 2 blog updates.
I’m so excited for this update I’ve been wanting to see Kizana and oka ruto but also yandere simulator has been the best game and I know I’m going to enjoy the 10 Rivals update I really like your game keep it up
love ur game
This so so exciting!
When will yandere sim be on Mac? or will it ever be on mac?
I don’t own a Mac computer, so I wouldn’t be able to test it.
I think I’ve been banned from your discord without even been verified yet. 😭 Please reconsider..I am confident in you and the project
hope we can finally join the student counselor in the next build!
Buenas YandereDev, espero tenga éxitos con esta actualización. Pero quería preguntar algo: ¿En la próxima actualización de 10 rivales o en cualquiera, nos podemos unir al consejo estudiantil? y le quería decir que, el juego me gusto por el diseño y todo, gracias por crear este juego tan maravilloso, Lo quiero YandereDev.
I’m sorry, it won’t be possible to join the student council in the next update. Maybe the update after that.
Gracias por la información pero quería saber como hacer mi propio oc porque no se como me podría, solo si puede escribir como podría hacerlo, gracias
I’m sorry, I don’t know how people mod the game to make their own OCs.
Dumb question, but if Yan-Chan were to have likes and dislikes like every other student, what would they be?
The only person that makes Yan chan feel is Taro Yamada. So I believe that she is either neutral with all the topics or she has the same likes and dislikes as Senpai. This is what I think at least
Someone please correct me if I’m wrong but… are the next rivals not going to have extra scenes like Osana? For example… talking to senpai in the morning or important interactions?
He said in this progress report that he made a simple system for those events.
Here’s another thing that could help is switching the engine to use the Unreal Engine which people say it helps a lot, it helped Square Enix and it seems that P-Studio at Atlus started using the engine too and it will help them too. This can help with the development of Yandere Simulator.
Yandere Dev! I think this is pretty big and please respond!!!
I think Ayano should have tons of pictures and handmade things and maybe stolen goods of and from Senpai in her basement! I think it would make her look much more like a stalker and a yandere, like she’s actually obsessed with him instead of just a little shrine in her room.
I think those stuff will be in the game in the later weeks… (The game is in week 1, so in week 10, you will get to see yan-chan’s basement like you said.)
This is just me here, but remember that when you said that if Osana died, it would also affect Hanako as well as Senpai? If Hanako dies while Osana’s alive, she SHOULD still confort Senpai instead of giving him the cold shoulder and not support him at all, showing that she’s also affected, even if you matchmaked her with Kyuji (as she’s still friends with Senpai) or befriended her (just because she won’t pursue his love anymore, doesn’t mean she won’t stop caring about him or Hanako). She might be hesitant if Senpai rejected her, but Osana should still be sad about Hanako dying and give her condolences to Senpai regardless.
I think we will have to assume that Osana is conforting Senpai through calls and messages.
Maybe that can be included on Megami’s introduction week cutscene. If Osana is alive but she’s been rejected, Senpai might notice a text/relieve a phone call from Osana or if she’s matchmaked/befriended, the cutscene would show Osana speaking with Senpai in person before she leaves.
Can’t wait! I haven’t played the game in awhile, but I’ve kept up with the development. Thanks Yandere Dev!
This is very cool Yandere dev! I’m waiting for an update with 10 opponents to play) The introduction to the consuls, I think, can be done after you have rested. And also, I have a question. Will the game be paid?(
The upcoming update will not be paid.
The final game will cost money.
Yandere Dev, well, you just surprised me ;-;
I’m so excited!!
I just saw that you said you have a release date in your mind. May I know is it after August?
he said that he doesn’t want to announce a release date yet just in case he doesn’t get it there in time. so, probably just assume it will be after august.