Sand drains through a giant hourglass and falling grains must be tapped before they settle at the bottom. Special coloured grains trigger chain reactions that clear dozens at once. Tilt events shake the glass and scatter the sand unpredictably. Race to keep the bottom clear before the last grain falls.

Watch a glowing sequence of taps light up across the screen, then reproduce it perfectly from memory. Each round adds one more step to the chain. Miss a single tap in the wrong position and the echo breaks. Sequences grow to twenty steps and beyond — your spatial memory will be fully tested by the end.

Rotate and slide falling blocks to build solid rows across the playing field. Complete a row and it vanishes, keeping the stack low. Let the blocks pile to the top and the game ends. Classic Tetris mechanics distilled to their purest form — easy to start, endlessly challenging to master under speed.