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Stack TowerDrop sliding slabs, slice the overhang, and stack as high as you can.

Stack Tower

Developer
Quokka Labs
Genre
One-tap stacker
Released
September 2026
Play time
1–5 min
Controls
Mouse, touch, or keyboard
Platform
Browser (desktop, mobile, tablet)
Arcade5-minute fun1–5 min

A one-tap isometric stacking game. Each new slab slides across the top of the tower, alternating direction every floor; tap to drop it and anything hanging over the edge is sliced off and tumbles away, leaving a smaller slab to stack on. Line it up perfectly for a rising chime and keep your size — string eight perfects in a row and the slab starts growing back. The slide speeds up as the tower climbs. Classic mode is endless with your best height marked on the tower; City mode turns every layer into a building floor with windows, gives each level a target height, and unlocks Sunset and Night Neon skylines as you clear levels.

How to play

Watch the slab slide over the tower and tap, click or press Space when it lines up with the slab below. Any overhang is cut off, so the next slab is smaller; miss completely and the run ends. Land within a hair of perfect to keep your full size and build a streak — after 8 perfects in a row each perfect drop grows the slab back. In City mode, reach the level's goal height to top out the building, unlock the next level, and earn new skyline themes at levels 3 and 6.

Controls

Tap or click the play field, or press Space, Enter or Down arrow to drop the slab. P or Esc pauses. Use the menu to switch between Classic and City, pick a city level and choose an unlocked skyline theme.

Tips and strategy

  • A drop counts as perfect only when it lands within about 3 percent of the base width of the slab below, so wait for it to line up exactly.
  • After 8 perfects in a row, each further perfect grows the slab back a little along the sliding direction, up to the original base size.
  • Any imperfect drop resets your perfect streak to zero, so a tidy cut early matters less than keeping a long streak going.
  • The slab slides faster with every floor until it hits a speed cap, so build your perfect streak while the tower is still low.
  • In City mode the first level needs 8 floors and each later level adds 4 more, up to a maximum of 60.

Stack Tower FAQ

How is the score counted in Stack Tower?

Your score is the number of slabs stacked on top of the base. The run ends when a slab misses the one below completely.

How do I unlock new skylines in Stack Tower?

Clear City mode levels. The Sunset skyline unlocks after 3 cleared levels and Night Neon after 6.

What is the difference between Classic and City mode in Stack Tower?

Classic is endless and marks your best height on the tower. City mode gives each level a target height and ends in a win once you reach it.

Privacy and saves

The game runs in your browser. Best height, cleared city levels, unlocked themes and sound setting are saved only in this browser's local storage, and nothing is uploaded. In-game ads are served by Google AdSense, which may use cookies; see the Quokka Games privacy policy.

A Quokka Labs original browser game · Free to play · No download