Planned Release Date: To be announced

About This Game

■ Demo and Full Release Currently in Development!

We are aiming to release the demo in 2026.
Wishlist the game and stay tuned for future updates!

Please note: The game itself is currently available in Japanese only. An English version has not yet been confirmed.

■ About the Game

Tea Party at the Extinction Museum is a cute yet slightly unsettling gothic exploration adventure where you switch between Rei, a protagonist who has become a ghost, and Chris, a mysterious girl who cannot speak, as you journey through a secret world inhabited by extinct creatures.
Rei can pass through walls and slip into narrow gaps. Chris can move objects, smash through obstacles, and fight dangerous enemies.
Although they possess completely different abilities, Chris is unable to speak. The two can communicate inside their shared mind only while Rei is possessing her body.
Thus begins a strange partnership between a ghost and a girl who do not trust each other.
Solve puzzles together, meet residents inspired by extinct creatures, and uncover the secrets hidden beneath a lavish tea party.

■ Story

Rei has reached a dead end in life after repeatedly failing to find a job.
One night, while working at a museum, she is involved in an unexpected accident. When she next opens her eyes, she finds herself transformed into a tiny white ghost.
She has wandered into a mysterious world known as the “Museum of Extinction,” inhabited by people who bear the traits of extinct creatures.
With no idea how to return to her original body or escape this world, Rei encounters Chris—a mysterious, bloodstained girl who cannot speak.
Cold, violent, and feared by the other residents, Chris is hardly someone Rei can trust. But with nowhere else to go, Rei possesses her body and begins traveling alongside her.
Colorful residents inspired by extinct creatures.
An unknown world stretching beyond the museum.
And something unsettling gradually emerging beneath the splendor of its tea parties.
Why are creatures that should have died out long ago living in this world?
Can Rei uncover the truth hidden within the Museum of Extinction and find her way home?
And where will the meeting of these two lonely souls ultimately lead them?

■ Features

• Explore in Two Forms: A Ghost and a Girl

  Rei can slip into narrow gaps and pass through thin walls. Chris can move objects, destroy obstacles, and fight dangerous enemies.
  Learn what each of them can—and cannot—do as you explore the museum and the world beyond.

• One Adventure, Two Minds

  When Rei possesses Chris, two minds inhabit a single body.
  Because Chris cannot speak, the two can communicate only while Rei is possessing her. Although they initially distrust each other, their repeated clashes gradually reveal their pasts and true feelings.
  Enjoy the story of two unlikely companions brought together by a strange encounter.

• Solve Puzzles and Explore the Unknown

  Use Rei’s ability to pass through walls to discover new paths, then take control of Chris to move objects and clear the way.
  As you explore and solve a variety of puzzles, you will discover new locations, stories, and secrets left behind in this world.

• Cute, Colorful, and Slightly Unsettling Residents

  The Museum of Extinction is home to a colorful cast of residents who have inherited the traits of extinct creatures.
  By speaking with them and learning about their histories and feelings, you may discover sides of them you never expected.
  Yet beneath the beauty and splendor of this world, something unsettling lingers...

• A Colorful Gothic World

  A gothic museum. Vibrant plants. Colorful residents inspired by extinct creatures.
  Amid the lavish scenery, subtle traces of something amiss begin to appear.
  What lies at the bottom of that beautiful teacup? Sweet tea—or a truth long forgotten?
  Uncover the secrets concealed beneath this world’s extravagant tea parties.
  We await you at the Museum of Extinction.

■ Guidelines

Videos and livestreams of this game are welcome.
You may freely create and monetize videos or livestreams featuring the game.
There are no restrictions on which parts of the game may be shown, including its final chapters and endings.
We would appreciate it if you included the game’s title, Tea Party at the Museum of Extinction, and a link to its Steam store page in the title or description of your video or stream.
When posting about the game on social media, please feel free to use the official hashtag #絶滅茶会!

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• Please refrain from using the game in content that violates public order or morality, or that is intended to defame the game, its creators, or anyone involved in its production.

• The developer assumes no responsibility for any problems arising from videos or livestreams featuring the game.

• All screenshots shown are from a work in progress. Content and UI elements are subject to change.

• This game is being developed using RPG Maker MZ.