Sandcastle

Sandcastle is a one-tap stacking game on a beach. A slab of wet sand slides back and forth above your tower and you tap to drop it. Anything hanging over the edge shears off and tumbles into the water, so the landing pad gets narrower every time you are sloppy — the game never really gets harder on its own, it only gets as hard as you have made it. Land a slab dead centre and it keeps its full width, which is the only way to undo the damage. It is the calmest game here and the one most likely to make you say just one more.