Stack Em! · iPhone block puzzle

One more piece.
One more possibility.

Stack Em! is an offline block puzzle for iPhone. Find the right fit, clear a line, and see how far a thoughtful move can take you.

Download on the App Store How it works

Available on the App Store · iPhone · iOS 17 or later

Make room for a better move

Place pieces to complete rows or columns. Keep your board open as you chase a higher score.

Play your way

Enjoy a colorful board and an optional Play Without Dragging control setting.

Take a puzzle with you

The current version works offline, with progress and preferences kept on your device.

Stack Em! development preview showing colorful puzzle blocks on the Nebula board — Development preview · Nebula theme. Release appearance may vary.

A simple idea. Plenty to discover.

Every piece changes your options. Look for a clean fit, plan a few spaces ahead, and turn a crowded board into your next opening. The in-app Help screen explains line clearing with a demonstration.

Before you play

Where can I get Stack Em!?

Stack Em! Cosmic Blocks is available now on the App Store. The current release is version 1.0.1.

Which iPhones are supported?

The current version requires iOS 17 or later and is designed for iPhone. See its App Store listing for availability in your region and full compatibility details.