Yandere Virus

About this game

Oh no!! Your precious friend has been infected with the terrifying Yandere Virus!

What started as a fun trip with your friends has turned into a nightmare in an instant.
When you come to your senses, you find yourself in a mysterious place,
and your dear friend has been infected with the “Yandere Virus.”

Explore this unknown place alone, or together with your friends.
Gather scattered materials to craft a cure,
save your friend and escape this place.

Run away from your Yandere friend

Your infected friend is no longer who they used to be.
Driven by a distorted mind and uncontrollable aggression, they will chase after you, taunting you with unsettling and disturbing whispers.

The moment you get caught, it’s all over.
If you want to survive—run.

Collect Platonic Pumpkins

Mysterious “Platonic Pumpkins” are hidden throughout this graveyard.
These pumpkins are essential ingredients for creating the cure.

Risk your life to collect them,
and complete the only cure that can save your friend.

Beware of Mutated Plants

Mutated plants lurk all around the graveyard, waiting to attack you.
Just when you think you've escaped your Yandere friend,
they will strike without warning.

Play Solo or Together with Friends

You can face this horror alone, or with your friends.
Invite up to 3 friends on Steam and enjoy intense cooperative gameplay.

Game Features

• Up to 4 players (online co-op / single-player supported)
  
• Proximity Voice Chat Support
  
• Relentless pursuit from friends infected with the Yandere Virus
  
• Platonic Pumpkin collection and cure crafting system
  
• Unpredictable attacks from dangerous mutated plants

Latest news

• Announcements·2 Sept 2026Official

  『Yandere Virus』 FINAL STEAM PLAYTEST — PARTICIPANTS WANTED

  We are holding the Final Steam Playtest for 『Yandere Virus』 to perform our final checks on multiplayer stability and game balance before release. Participants who submit gameplay footage and game log files will receive the 『Yandere Virus』 base game and DLC rewards depending on their participation and submitted materials. HOW TO APPLY SOLO PLAY Request access by clicking the “Request Access” button in the Steam Playtest section of the game’s Steam page. Steam Store Page Discord Channel MULTIPLAYER Please apply through the separate Google Form below. Selected multiplayer participants will also receive Steam keys for the people playing with them. Multiplayer Application Form Discord Channel PLAYTEST SCHEDULE The Final Steam Playtest will be conducted in three rounds. Pacific Daylight Time (PDT, UTC−7) Round 1: September 6 (Sun), 7:00 PM – September 9 (Wed), 2:00 AM Round 2: September 9 (Wed), 7:00 PM – September 13 (Sun), 2:00 AM Round 3: September 13 (Sun), 7:00 PM – September 17 (Thu), 2:00 AM The corresponding Steam Playtest build will be available during each test period. REQUIRED SUBMISSIONS Participants must submit the following materials through the designated Discord channel: Gameplay footage Game log files For large video files, please upload them to Google Drive or another file-sharing service and send us the shareable link. The location of the log files and detailed submission instructions will be provided separately. You are not required to write a separate bug report. RECOMMENDED FOOTAGE If possible, the following types of footage would be especially helpful: Multiplayer gameplay footage Footage containing both game audio and player conversations Footage that clearly shows the gameplay process and any issues encountered Gameplay footage from a variety of stages All stages will be unlocked from the beginning. Your own voice does not have to be included. Footage containing the voices of other participants or in-game voice chat will also qualify. PARTICIPATIO...
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• Announcements·27 Aug 2026Official

  Yandere Virus Demo Discontinuation Notice

  Hello, this is the developer of Yandere Virus.As part of our preparations for the full release, the Steam demo of Yandere Virus will be discontinued as of today.The network system and overall level of stability in the upcoming full version have changed significantly compared to the demo. Under these circumstances, we have determined that it would be difficult to maintain the network environments of both versions simultaneously.We can also no longer guarantee the network quality of the demo. To focus our development resources on improving and stabilizing multiplayer for the full version, we have decided to discontinue the demo.After the demo is discontinued, it will no longer be available for download or launch, even if it has already been added to your Steam Library or installed.Thank you to everyone who played the Yandere Virus demo. We look forward to seeing you again in the more stable and polished full version.Thank you.The Developer of Yandere Virus
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• Announcements·24 Aug 2026Official

  Release Date Change & Our Sincere Apologies

  Hello, this is the developer of Yandere Virus.First of all, I sincerely apologize to everyone who has been waiting for the release. I'm sorry to have to share this disappointing news.We have decided to delay the release of Yandere Virus by two weeks, from September 8 to September 21.All of the game's content is now complete, and we are currently working on the final stages of multiplayer stabilization.We have been fixing issues discovered through several rounds of multiplayer testing. However, considering the conditions we may face at launch, with many players playing at the same time, we have decided that we need more time for additional testing and stabilization.Keeping our promised release date is important, but since co-op multiplayer is at the heart of Yandere Virus, we believe it is even more important to make sure that you can enjoy the game with your friends as smoothly and reliably as possible from day one.More than anything, we are truly sorry to ask those of you who have already been waiting for the game to wait a little longer.As the developer, I take the fact that we are unable to keep our promised release date very seriously. Knowing how many of you are looking forward to the game made this a very difficult decision, but I believe spending these extra two weeks testing and fixing issues is the right choice rather than rushing the game out before the multiplayer experience is ready.The new release date is September 21, 2026.These additional two weeks will not be used to add new content. We will focus entirely on multiplayer testing, stabilization, and bug fixes.Once again, I sincerely apologize to everyone who has been waiting for the game.We will make the most of this extra time and do everything we can to deliver a more stable experience.Thank you for your patience and understanding.Developer of Yandere Virus
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• Announcements·18 Aug 2026Official

  🎉 40,000 Wishlists! & Final Steam Playtest Coming Soon

  Thanks to all of your interest and support, Yandere Virus has reached 40,000 wishlists on Steam!After reaching 10,000, 20,000, and 30,000 wishlists, we’ve now hit the incredible milestone of 40,000. We sincerely thank everyone who has been waiting for the game and added it to their wishlist. 😊We are currently working toward the September 8 release, focusing on polishing the game, testing, and fixing bugs.And before the official release, we’re preparing a Final Steam Playtest!This will be our final test in a real multiplayer environment, and we’ll soon be looking for players to participate.More details about the Final Steam Playtest and how to participate will be announced in a separate post around this Friday.There’s not much time left until release!Thank you once again for helping us reach 40,000 wishlists. We’ll keep working hard until the very end to make Yandere Virus the best it can be!Thank you! 🎃
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• Patch Notes·27 Jul 2026Official

  📢 Trailer #2 is Here + Release Date Update

  Hello everyone!We're excited to share the second official trailer for Yandere Virus!In this new trailer, you'll get a first look at some of the latest content we've been working on, including:🏫 A brand-new stage💕 New Yandere characters🎮 New playable charactersAnd various new content and improvementsWe hope you enjoy this new preview of the game!However, we also have an important announcement to share.Over the past several weeks, we've been carefully evaluating the game's progress and overall quality. As development continued, we came to the conclusion that we won't be able to achieve the level of polish we're aiming for by our previously planned release date of August 18.After much consideration, we've decided to delay the release so we can deliver a more polished experience.The new release date is September 8, 2026.We sincerely apologize to everyone who was looking forward to the August release.This was not an easy decision, but we believe it's the right one. Rather than rushing the game out, we'd rather spend a little more time ensuring that Yandere Virus launches in the best condition possible.We'll continue working hard over the coming weeks to improve the game's overall quality and deliver an experience that lives up to your expectations.Thank you, as always, for your incredible support, feedback, and wishlists throughout development.We can't wait to see you on September 8!Thank you for your patience and continued support.— Moka Sphere
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