Moby Dick
Description
Contrary to the expectations, Moby Dick doesn't tell the story of whalers (as the book does) - it puts the player in the skin of the eponymous whale (controlled with a mouse).
The only goal of this endless game is to grow and survive (and to score achievements). Eat (all living creatures are edible here, not just the fish), breathe (remember you're a mammal - surface from time to time) and avoid being killed (by either eluding ships or sinking them).