Wake is a nicely put together platformer where your aim is to escape a sinking boat. Although the game doesn't do a very good job at all of explaining this to you, as all you get told are the controls.
There is no objective screen, no missions, no quest, you are quite litterally thrown in at the deepend and made to swim your way to safety. It took me a good hour or two before I worked out what had to be done, and as there is little help online for this game, it felt quite the achivement once I managed to complete the game.
All the regular platforming type mechanics are here, it is just mainly focused on the swimming and underwater level design, I might add is done very well, which is more than can be said for most underwater levels.