You have come to a lake, hoping to see a rare and beautiful sight: the lilies of this lake only open their blossoms in the rain and only rarely do all eight kinds of lily bloom at once. The goal of A GENTLE RAIN is to place your lake tiles to cause all of the lilies to bloom, before you run out of tiles and the rain stops.

Carefully place each new tile next to a tile already in play, making sure to match the colors of the touching edges. Each time you manage to complete a square of four touching tiles, a blossom will open between them.