The tide erodes your castle walls between waves; clicking rebuilds spent sand, and moat towers redirect water flow to soften enemy paths. Signature: sacrifice a wall to flood a lane, then rebuild before the next tide.
Golden-hour sand, foam lace lines, shell and driftwood props, long warm shadows, gull silhouettes.
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.