About Sky Stack
A tiny crane swings a colourful block back and forth above a floating island. Time your drop so each block lands on the one below, keep the tower balanced and watch it climb into the sky. Land right in the middle for perfect drops and combo bonuses, but lean too far and the whole tower tips over.
How to play
- Watch the crane hook swing a block from side to side above the tower.
- Press Space or Enter, or tap the screen, to let the block go. It falls straight down.
- Land it near the centre of the block below. A drop in the middle snaps into place as a Perfect drop and builds your combo.
- Off-centre blocks stay where they land, so the tower starts to lean. If it leans too far, it topples and the run ends.
- Blocks that miss the tower fall into the clouds and cost one of your three hearts.
Controls
- Keyboard: Space or Enter drops the block
- Touch: Tap anywhere to drop the block
- Pause: P or Esc, or the pause button.
Five levels
| Level | Goal |
|---|---|
| 1 | Stack 8 blocks — A slow, gentle swing to learn the timing. Drop each block when the hook is over the tower. |
| 2 | Stack 12 blocks — The crane swings a little faster and wider. Keep the tower straight. |
| 3 | Get 5 perfect drops — Land five blocks right in the middle of the one below. They don't need to be in a row. |
| 4 | Stack 16 in the wind — A breeze pushes the swing off-centre and makes the tower sway. Watch the gusts. |
| 5 | Stack 20 blocks — Cubes, slabs, small blocks and drums in a stronger wind. The final test. |
Arcade mode
Endless tower. The swing gets faster and windier every 5 blocks. Stack as high as you can. Every block scores 10 points and perfect drops add a bonus that grows with your combo. The run ends when the tower topples or you lose all three hearts.
Tips
- The hook moves fastest in the middle of its swing. Press a moment before it reaches the centre.
- A dot on the tower top shows where the block will land if you drop it now.
- If the tower already leans one way, land the next block slightly towards the other side to balance it.
- In the wind the swing drifts off-centre. Wait for a calm moment between gusts.
Questions
What makes the tower fall over?
Each block has to hold up everything stacked on it. If the combined weight of the blocks above leans past the edge of a block, the tower tips over from that point and the run ends.
How do perfect drops work?
If a block lands very close to the centre of the block below, it snaps into place. That keeps the tower straight, earns bonus points and adds to your combo. Any off-centre drop resets the combo.
What happens when I miss?
A block that misses the tower, or hangs too far over the edge, falls into the clouds. You lose one of your three hearts but the tower stays up.