Tower Stack — the one-tap arcade climber. From lilygames.
● A block slides left and right across the top
● Tap to drop it onto the tower
● The overhang gets shaved off — line it up to keep the width
● Speed creeps up every floor you survive
● Tracks your all-time best, no account required
Pure timing. One finger. Calm music optional. Pick it up for thirty seconds, leave it at a new high score.