Perfect Stack

## Tap. Line it up. Stack to the stars.

A slab slides back and forth above your tower. **Tap to drop it.** Whatever hangs over the edge gets sliced off, so every sloppy landing makes your tower thinner. Land one **dead-center** and it's a **PERFECT**.

### How it works

- **Drop** the sliding slab so it lands squarely on the tower.

- **Overhang gets cut.** The tower narrows with every miss.

- **PERFECT landings** build a chain and score bonus points.

- **Chain 3 perfects** and your tower **regrows**, widening a little with each perfect after that, up to its original width.

- If the slab misses the tower almost completely, the run ends.

### Climb through five zones

As you build, the sky changes and the slabs move faster and less predictably:

**Foundation → Skyline → Cloudline → Stratosphere → Orbit**

### Why it's hard to put down

- One input, instantly understood, very quick to retry.

- Gold guide lines show when you're lined up, but timing it at speed is another story.

- Chase your best score, your best floor, and your best chain.

- Your records are saved in your browser.

### Controls

| Action | Keyboard / Mouse | Touch |

|---|---|---|

| Drop slab | Space, Enter, or click | Tap anywhere |

| Start / restart | Space, Enter, or click | Tap |

| Pause | P or Esc | Pause button |

| Mute | M | Sound button |

### Good to know

- Single-player, one endless score-attack mode. No levels, no online leaderboard.

- Plays in a portrait-shaped window; on a wide screen the play area is a centered column.

- Best score and best floor are stored in your browser; clearing site data resets them.

- Sound is generated in your browser. Click or press a key to enable it.

- Screen effects are reduced if your device has "reduce motion" turned on.

How high can you build?