The game looks very pretty! I love the design of the trees, and the water looks great, as does the boat. The fog is impressive! The WASD controls and space bar to jump and all that was very intuitive, though it would still have been good to have maybe a menu option at the start screen that tells you how to play.
The thing that tripped me up though was, I had no idea what I was doing at all in the game. It said I am supposed to report enemy ships, but I had no idea how to do any such thing at all. I mostly just explored the island until the enemy ship won a couple times before giving up. I did find that I could pick up diesel, but not how to use it anywhere.