Another World Series -Slit Mouth Woman VS AOONI-

Another World Series -Slit Mouth Woman VS AOONI-

YMCAT/Regista · 2025 · Adventure, 3D, Horror, Action, Stealth

PC
5 user reviews40% · 5
Best price
$17.99
lowest tracked $4.49
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Standard Edition · Steam
$17.99
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About Another World Series -Slit Mouth Woman VS AOONI-

The first in the “Another World Series”, in which the protagonist solves a mystery while moving between different worlds.

A legendary modern ghost story vs. a legendary horror game!Solve the mystery of the abandoned hospital without bein
Akashi Asanagi, a university student, wakes up on the 10th floor of an abandoned hospital.While exploring the hospital, he encounters a blue monster called “Aooni”, and when he touches the mask that Aooni dropped, the hospital transforms into an alley, where he encounters a mysterious woman wielding a kitchen knife called “Slit Mouth Woman”.
Akashi is attacked by the two beings, but for some reason a battle breaks out between the Slit Mouth Woman and Aooni...?
School, cemetery, house...Explore the various different worlds on each floor and use items and gimmicks to solve the mystery of the abandoned hospital.
Multi-endings are unlocked depending on the results of your play, and each floor also has fully voiced event scenes.
Why are the Slit Mouth Moman and Aooni fighting? Who will win? Who is Akashi himself?Conquer all 10 stages and escape from the abandoned hospital.

■Main Characters

・Akashi AsanagiA cheerful and slightly airheaded first year university student.He finds himself in an abandoned hospital.He has good reflexes.
・Ray YuyamiDespite being in the fifth grade, she has a level of thinking and knowledge that puts adults to shame.She received a letter from her older sister, who ran away from home three years ago, and came to the abandoned hospital.She is quiet, but loves the occult.
・Mumu NissyokuA girl who is always smiling and carefree.

■Controls

A Button (Left Click, Enter): Examine, decisionB Button (Right Click, Back Space): CancelY Button (F): Use selected itemX Button (Ctrl): CrouchL Bumper, R Bumper (Q, E): Select itemL Trigger, R Trigger (Z, C): Look backStart/Menu (TAB): Open pause screen

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Jun 11, 2025
GYATT DAMN AO ONI THICC AS FUUUUUUU!!!
14 found this helpful
Not recommended Aug 3, 2025
if you go into this expecting ♥♥♥♥ you won't be surprised, but you'll realise it's not worth spending any amount of money on at all.
6 found this helpful
Recommended Dec 10, 2025
This is a piece of art and it's artwork rivals with crafts such as Picassos´s. At least once in your lifetime you must try this experience.
2 found this helpful
Not recommended May 1, 2026
A game where you're being chased by Ao-oni and you have to complete the puzzles and travel to other dimension (Kuchisake Onna's) to get the answers of the puzzles. You have to do this 10 times because there are ten floors. Some of the floors have seizure inducing texture and the gameplay is so repetitive and many a times, you have to use your brain to figure out where to head next and how can you complete this puzzle. There's a short lore to it and 4+1(Bonus) endings which I didn't managed to complete it for obivous reasons. Also I didn't planned to get all the achievements and the name has nothing to do with the lore. This game should be on playstore for free yet i paid for it and got played by it. Edit: I had time and no money so instead of buying a new game from my wishlist I completed the achievements of this game. A little grind and it was all done!

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