Nine Stack
3D chain-reaction block puzzle
Only for iPhone
Free
iPhone
Drop blocks onto nine stacks on a 3×3 floor. Connect 4 of a color to clear them and set off chains. Clear next to the gray Somedo blocks to color them and chain them in.
A falling-block puzzle in 3D: drop blocks onto nine stacks on a 3×3 floor, and connect colors in 3D to clear them.
HOW TO PLAY
- Tap the empty spot on top of a stack to drop the next block there. You can see the next two colors at the top right.
- Connect 4 or more blocks of the same color, up, down, left, right, front or back, to clear them.
- Blocks above fall into the gap, and if they connect again, that's a chain. Each step of a chain scores double the step before.
- Drag to turn the board and see the stacks at the back.
SOMEDO
- Gray blocks called Somedo drop from above over time.
- Clear a group next to a Somedo and it takes on that color, so it clears like any other block. Catch them right to make your chains even longer.
- The game ends when Somedo spills over the line at the top of a stack, or when all nine stacks are full.
- There's no time limit. As your score grows, the level goes up and Somedo drops more often.
DAILY GAME
- Every day, everyone plays the same order of blocks. A new daily game starts at midnight Japan time (15:00 UTC). Play it as many times as you like.
- Your best for today is shown on the title screen.
LEADERBOARDS
- Compete for high scores (today, this week and all time) and on the daily leaderboard in Game Center.
- The result screen shows your rank for the week (for the daily game, for today).
EASY TO PICK UP
- Groups of three that need just one more block glow and pulse (you can turn this off).
- Turn on color patterns to tell the blocks apart without relying on color.
- An animated guide shows you how to play the first time. You can see it again from Settings at any time.
This app contains ads (never during play).
Leaderboards require signing in to Game Center (you can play without signing in).
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Yoshiya Tanaka, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yoshiya Tanaka
- Size
- 29.7 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.
- iPhone
- Languages
- English and Japanese
- Age Rating
13+
- 13+
- Frequent
Contests
Contains
Advertising
- Copyright
- © 2026 tanalib
