StormTorn is a nautical rpg with an emphasis on exploration. It uses a procedurally generated world. It is expected to offer 50+ hours gameplay for a single game, and it is replayable. Features: A large, procedural world to explore; Your actions have permanent consequences; Advancement in the form of improving the ship, the crew, and the captain; Permadeath; and lots of others. Please follow my blog posts for further details about the mechanics and features of the game.
I'm just working on this fortress at the moment to have a building to test the placement with. The ship was just added for demonstration, to show what kind of atmosphere you can expect.
Fort ahead! Nice :)