Pebble invaders roll along sand; you rake channels to steer them into rock-tower killzones, and disturbed ripples reduce your meditation score (money). Signature: one perfect rake-line guides the whole stream into the stone jaws.
Muted sand and stone, precise raked-line patterns, moss accents, minimal shadows, single maple.
Click, Enter or Space to start. Place and upgrade towers with the mouse and number keys, or by tapping on touch, to stop each enemy wave before it reaches your goal. The HUD tracks lives, cash and wave.