Drop

Drop is an adventure game in which a boy dives into the sea, recovers the past image, and weave a story. A story told purely through animation with no sound or script.
Story
A world of rising tides – and boy who lives there.One day, the boy spots a glimmer of light beneath the waves…and after touching it, the boy dives further into the depth to pursue it.

Seeking out the light, the boy dives deeper. While following the boy's story and the story of the image, the player guides the boy to the end.
Features
・ Simple and Deep story・ Dense experience of about 30 minutes
・ Simple controls using only mouse
・ Fishing to get the food needed for underwater activities.

Source: TheGamesDB