KOROCHEMY
Drop, Merge, Survive!
Only for iPhone
Free · In‑App Purchases
iPhone
KOROCHEMY is a physics-based merge puzzle where every drop can change the whole box. Place each ball, connect matching levels, and build the biggest creation you can before the box overflows.
Simple controls make it easy to start. Smart placement, chain merges, special balls, and fast decisions create room for real skill.
FEATURES
- Satisfying physics-driven drops and merges
- Twelve levels of ball evolution
- Dozens of unusual ball skins with full 3D previews
- Special balls that upgrade, pull, freeze, blast, and reshape the board
- Eight distinctive stages, from a mountain lake to space, dragons, and horror
- Nearby local battles where merges send obstacle balls to your opponent
- English and Japanese language support
- Three graphics presets with 60 fps as the standard target
- Offline solo play with no ads, tracking, or required account
- Optional Game Center solo rankings with explicit player consent
Optional non-consumable purchases unlock cosmetic ball skins and premium stages. Purchases can be restored with the same Apple Account.
Local Battle requires two nearby supported devices and local network permission. No online game account or paid game server is used.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Improved gameplay pacing with a 6-second auto-drop timer in Solo mode, enlarged the countdown display for better visibility, balanced stage BGM volume, refined the Dragon stage presentation, and fixed minor UI and visual issues.
The developer, Takumi Nishio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Takumi Nishio
- Size
- 172 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Infrequent
Horror/Fear Themes
- In-App Purchases
Yes
- CHOOSE 6 BALL SKINS $1.99
- UPGRADE TO 6 SKINS $0.99
- CHOOSE 3 BALL SKINS $0.99
- CLASSROOM + NIGHTMARE $1.99
- DRAGON + NIGHTMARE $1.99
- UPGRADE TO ALL 4 $0.99
- CAT CAFE + CLASSROOM $1.99
- NIGHTMARE HOSPITAL $0.99
- DRAGON + CLASSROOM $1.99
- CAT CAFE + DRAGON $1.99
- Copyright
- © 2026 KOROCHEMY
