Stack is a one-mechanic arcade game where you tap to drop platforms and try to build the tallest tower possible. That sounds thin on paper, and in practice it pretty much is, but the mechanic is tuned well enough to create genuine tension each tap. The visuals are minimal and satisfying, the audio feedback is snappy, and the game runs without performance issues on any remotely modern device.
The depth ceiling arrives fast. Once you understand the timing rhythm there is no meaningful skill ceiling to chase, no unlockables, no modes to vary the experience. It is the definition of a session filler rather than a session driver. The ad load between runs is the main frustration: frequent interstitials that interrupt what would otherwise be a seamless pick-up-and-play loop.
Ketchapp built their catalogue on this kind of micro-game, and Stack is probably their cleanest execution of the formula. Just do not expect more than a few days of novelty before it becomes wallpaper.
Verdict: A well-executed micro-game with a satisfying tap loop, but it burns out in a day or two and offers nothing to bring you back.
