
Harbor Stack: Crane Container Stacking Tower Game – Drop, Balance & Build the Tallest Tower
Arcade GameAbout Harbor Stack: Crane Container Stacking Tower Game – Drop, Balance & Build the Tallest Tower
Harbor Stack is a free online stacking game set in a busy port. A dockside crane swings a shipping container back and forth above the harbor. Your job is to drop it at exactly the right moment and build the tallest container tower you can.
Every drop counts. Land a container right on top of the one below for a Perfect drop and start a combo for bonus points. Drop it off-center and your tower starts to wobble. Leave too much weight hanging over an edge and the containers above it topple into the sea.
The higher you build, the harder it gets. The crane swings faster and wider, and after a few floors the trolley also slides along the beam. As the tower rises, the sky goes from bright daylight to a golden sunset to a starry night.
Harbor Stack works right in your browser on mobile, tablet and desktop. You don’t need to download or sign up. One tap is all it takes to play, which makes it a good quick game for any break. Can you stack your way to the stars?
Features: one-tap controls · real balance physics · Perfect-drop combos · difficulty that keeps rising · changing day, sunset and night sky · 3 lives and a saved best score · no download needed.
How to Play Harbor Stack: Crane Container Stacking Tower Game – Drop, Balance & Build the Tallest Tower
- Press Play. A container swings from the crane at the top of the screen.
- Tap, click or press Space to drop it. It falls straight down, and the dotted line shows where it will land.
- Land the first one on the dock, then each one after on top of the last container.
- Line it up exactly with the container below for a Perfect drop. Perfect drops in a row build a combo for bonus points.
- Off-center drops make the tower wobble. If too much weight hangs over an edge, the containers above it topple and you lose a life.
- Missing the stack also costs a life. You have 3 lives.
- The crane speeds up and starts sliding as you climb, so keep your timing sharp.


