Koop The Angel's Devil Tail: One More Question 2 PC

For player discussions, feedback, and playing lateral thinking puzzles, please join our Discord. The invite link can be found in the "External Links" section on the store page.

Forget waiting around in awkward group chats just to play "Turtle Soup."

Now, you can dive headfirst into bizarre lateral thinking mysteries—completely solo!

The eccentric new girl here seems to have a few screws loose...

Clutching a stack of twisted, baffling riddles, she coldly hits you with the exact same three answers no matter what you ask:

"Yes." "No." "Totally irrelevant~"

What Is This Game?

A single-player lateral thinking puzzle game that blends sweet anime charm with spine-chilling twists and pitch-black humor! Alongside a generous serving of standalone mysteries, a carefully woven story connects two heroines—with its biggest secrets waiting at the very end. Can you uncover the truth?

What Is a Lateral Thinking Puzzle?

Also known as  “Situation Puzzle” .
The host presents an extremely unreasonable, almost ridiculous story,

You then ask questions to uncover what actually happened.

Take this classic story, "Cattle Grazing," as an example：

It was night, and I was sleeping soundly, when I was suddenly awakened by a commotion. From the pasture outside came the sound of a sharp blade wielding, the sound of cattle grazing, and then the sound of knocking on the door. I was a bit scared, so I did not open the door. What exactly happened?

Typically, the host will only respond with “Yes,” “No,” or “Irrelevant.”
Using the answers you gather, you deduce the direction of the truth and gradually reveal the full story.

What? Still sounds confusing?
Don’t worry—play one round and you’ll instantly get it.

Workshop 2.0:

Not satisfied with my puzzles?
Already cleared the game?
No problem—the Workshop is here.

■ No programming required. Create your own puzzles using the exact same interface used to play them.
■ Test and preview your works anytime.
■ Play puzzles created by other players—and give them a thumbs-up!
■ Export your projects for collaborative editing. You no longer have to fight alone.
■ A creator & player leaderboard shows who the real “Puzzle Master” is.
■ A light-weight server is available. If you allow redistribution, players outside of Steam can also enjoy your puzzles!

Developer's Note:

Creating this game has been a joyful journey for me. I truly hope it brings a smile to your face while you play.

Both live streaming and recorded videos are welcome. However, please ensure the game title and purchase link are clearly displayed in a prominent location.

Thank you!