Tap to drop each sliding slab. Line it up perfectly and build up into the sky.
Let's catch it. The slab settles perfectly into place and your tower keeps growing.
Stack Up is a calm one-tap stack tower game. A slab slides back and forth; tap to drop it on the tower. Any overhang is sliced off, so line it up well. Perfect drops chime and can grow the slab back.
The steady tap, tap rhythm is soothing, and the sky slowly turns from morning to night as you climb. Why a five-minute break works.