Crossover Announcement and Poll

Recently, I suggested that if Yandere Simulator were ever to have a hypothetical crossover event with another video game, it would be helpful to know which characters are the most popular ones, so that the fanbase approves of the characters who are chosen for the crossover event. I created a poll and asked people to rank 25 female characters from most-favorite to least-favorite.

Unfortunately, there were several problems with that poll! Namely:

  1. Asking people to rank 25 characters is asking too much. It’s a time-consuming and tedious task, so most people aren’t going to bother with it.
  2. There aren’t any pictures, so it’s difficult to actually participate in the poll unless you’ve memorized every character’s name.
  3. The results of the poll were more-or-less in the same order as the default order, which means that most people simply clicked “Vote” without bothering to organize the characters into a list of most-favorite to least-favorite.

As a result, the poll didn’t reach enough people, and the results of the poll don’t reflect which characters are actually the fan favorites. So, I have to try this again.

It’s time to drop the pretense that this is all just hypothetical, and tell you what’s actually going on: Yandere Simulator will be having a crossover event with a game called Project QT!

In case you’re not familiar with it, Project QT is an 18+ game that is available on the adult website That’s right – it’s a porn game!

You might be thinking, “Gasp! YandereDev! How could you do a crossover event with an adult game?!” However, I don’t think this should come as a surprise to you. I’m already aiming for an M-for-mature rating, Yandere Simulator was never intended for children, my audience is comprised mostly of adults, and Yandere-chan has already appeared in another game with adult content. So, a crossover event with an adult game strikes me as being completely natural for Yandere Sim.

You might be shocked to hear this, but there are actual multiple other crossover events and big surprises currently in the works. I haven’t publicly announced any of them yet, because I don’t like to announce things until I have cool video footage to show you. I’m making an exception for the Project QT crossover and announcing it several months in advance, because the developers would like me to poll my audience about the characters they’d prefer to see in it. (The other crossover events aren’t for adult games, by the way.)

For the reasons mentioned at the top of the blog post, my previous poll sucked, and the results are worthless. So, I asked my buddy at to set up a better poll for me. It’s got pictures, and you only have to click 5 buttons to complete it! Vastly superior to my previous poll!

So, please click this link and vote for the Yandere Sim characters that you want to see in Project QT:

(Keep in mind that the characters you select will be appearing in an erotic game; instead of voting for your “favorite” girls, you might want to vote for the girls who you think are the most sexy!)

December 21st Bug-Fixing Build

Been working on Osana. A lot of playtesting; a lot of asking myself, “Would a new player get confused and not understand what to do?” “Is this elimination method good or bad game design?” “What can I do to guarantee that the player won’t get frustrated here?” Most of the work I’m going right now won’t be visible until after Osana is released, but numerous little improvements and bug-fixes have been piling up, so I’m releasing a new build!

To see a list of everything that was fixed or changed in the latest build, scroll down past this striking and artistic illustration by cinnamonduh!

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Character Popularity Rankings

Are you familiar with “gacha” games? In a gacha game, the central mechanic is the ability to use virtual currency to obtain a random character. Collecting every character can be super fun!

Some gacha games exclusively feature female characters. Personally, I’m addicted to Azur Lane, a game about collecting girls that represent warships from WW2. It was the inspiration for the Shipgirl easter egg!

Sometimes, a gacha game will have a “crossover” event with another game, and you’ll be able to collect characters that come from a completely different franchise for a limited time. (For example, there was an event where the girls from Hyperdimension Neptunia were available in Azur Lane for a few weeks). It’s always super cool to see characters cross from one franchise into another!!

…why am I talking about this? Well…

As a purely hypothetical thought experiment, let’s imagine that, hypothetically, a popular gacha game would like to have a crossover event with Yandere Simulator. In this hypothetical event, six female characters from Yandere Sim will become available in the gacha game, and you can collect them and send them into battle!

Hypothetically, if this were to happen, the developer of the gacha game would want to know the six most popular female characters among the Yandere Sim fanbase.

…anyway, on a completely unrelated note, I’d like to ask you to rank some female characters from Yandere Simulator from most favorite to least favorite!

I know that ranking 30 characters in a specific order is a potentially time-consuming request, but if you could do this for me, it would help me out a lot!

I understand that it might be difficult to form a meaningful opinion about some of these characters, since they haven’t actually appeared in-game yet. So, if you’re having trouble ranking them, just imagine that, hypothetically, you’re deciding which ones would be the most fun to collect in a gacha game.

Okay, that’s all I wanted to say! Time for me to get back to work! Have a great day!

December 15th Progress Report and Bug-Fixing Build

Over the past 2 weeks, I’ve been making tons of progress on Osana. In case you’re curious exactly what I’ve been doing, I’ll write out a progress report below. But first, I want to share this cosplay by Sulkucosp!

Super artistic!! I love it!!

I’m always so impressed by the artwork and cosplay that comes out of the Russian fan community for Yandere Simulator! I think the primary reason why Yandere Simulator has such a large and active fanbase in Russia is due to the efforts of a group of people who operate a Yandere Sim fan page on VKontakte, which is basically the Russian equivalent of Facebook (and the 12th most-visited website in the world)! Not only do they post fan art and cosplay almost every day, but they also translate my blog posts to Russian! I’m extremely grateful to the lovesick_yandersimulator group on, because they are basically my official representatives in Russia!

As I scroll down their page, I see a dozen illustrations and cosplay photos that I want to share…but I’ll contain my excitement for now, and move on to the “Progress Report” part of the blog post, followed by the changelog for the latest build.

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Yandere Simulator 2014 Prototype

There is an archive where you can download old builds of Yandere Sim from as far back as 2014. The oldest builds are simply benchmarking tests / school environment previews, with no gameplay.

However, there is an even earlier build of Yandere Simulator that was never put online – the one featured in this video. Someone recently asked me to make it publicly available, and I can’t see any reason why not, so I’ve decided to release it today!

You can download it here:

This prototype contains more than just one small test environment. In this build, you can see:

  • The original “YandereDev logo” I planned to use
  • The original title screen
  • The original intro cutscenes
  • A gameplay sandbox
  • A school environment
  • A small environment for testing the “stuff body parts into a guitar case” feature

Please keep in mind that this prototype was created in 2014, and is extremely incomplete. For example:

  • The menus can only be navigated using keyboard. No controller support.
  • Sometimes you advance using the spacebar, sometimes you advance using the enter key. It’s inconsistent.
  • The gameplay sections are only compatible with controller. No mouse+keyboard support.

I’m releasing this prototype for its novelty value; simply because it might be entertaining to look at an old, primitive version of Yandere Sim. Fixing the flaws described above would not be a productive use of my time, so I’m simply releasing it “as-is”.


  • To return the level select screen, use the Esc key to return.
  • If it freezes while loading into a specific level, use the Esc key to return to the level select screen, then try again.
  • There are three characters located somewhere in the school scene! Can you find them?

Have fun!

December 4th Bug-Fixing Build

Oops! There was a really embarrassing bug in the previous build, so here’s an update where that bug is resolved.

To see a list of everything that was changed in the latest build, scroll down past this gorgeous artwork by Eli-Pic!

You can find wallpaper versions of this illustration on the wallpapers page of the official website! And if you enjoy the artist’s work, check out her Patreon!

Continue reading

December 1st Bug-Fixing Build (and video)

Today’s video is different from most of the videos I’ve uploaded. It’s directly related to Yandere Simulator, just like all of my videos always have been, but the focus of the video is something else entirely.

You’ve probably seen a lot of YouTubers making videos about a specific subject lately. I’m not making this video because the subject is “topical” or because I want to hop on a bandwagon; I’m making this video because I want to send a loud and clear message.

By the way – want to hear a bit of trivia? When I’m writing a script for a video or editing a video together, I don’t make any effort to avoid certain words or visuals that might cause the video to be demonetized. I frequently say words like “murder” “corpse” “kill” and show violence and blood in almost every video. In short, I just don’t really care whether or not YouTube runs ads on my videos.

With that said…over the past 25 months, only two of my videos have been demonetized. Isn’t that surprising, considering the fact that nearly every one of my videos features blood and murder?

Anyway, here’s the interesting part: Apparently, this new video crosses a line that none of my videos have crossed over the past 25 months, because it was demonetized instantly, as soon as I finished uploading it. It doesn’t matter, though; I don’t care if this video is “not appropriate for all ages”. The purpose of this video is to send a message, not to be family-friendly or make profit.

I bet you’re curious to hear about Osana progress. I’ll describe the stage that I’m currently at:

For a long time, Kokona served as the “guinea pig” for testing out various elimination methods. For example, even though Kokona is not actually a rival, it was possible to report Kokona to the guidance counselor and get her expelled, to test the process of expelling a rival.

As part of the process of implementing Osana, I have to go through the game and hook up the expulsion code to Osana’s expulsion-specific events. At this point in time, the game is no longer using “Kokona debug test” code, and is now set up to actually expel Osana for real. As a result, it’s no longer possible to get Kokona expelled in the current debug sandbox.

That’s a really significant sign of the stage we’re currently at; we’re at the point where you’re actually going to see certain functionality start disappearing from the game, because that functionality is evolving from “placeholder for debug testing” to “fully operational on a real rival”, as it is supposed to be.

In case all of that was too complex to understand, I’ll phrase it a different way:

I wanted you to be able to test the expulsion feature for as long as possible, so I kept it attached to Kokona for a long time. The fact that I’ve moved the expulsion feature from Kokona to Osana means that I’ve reached the stage of development where I finally do the things that I intentionally put at the end of my list. In other words, I’ve nearly reached the very end of the list of things that need to get done for Osana to be complete!

While implementing Osana, a lot of these types of changes piled up. Click “Continue Reading” to read how the game has changed.

Continue reading