DeapSea

DeapSea is a single-player variation on Battleship, where the player and the computer take turns attempting to sink their opponent's ships by firing shots. In this game, you don't place your ships manually, but get a random setup, which you can reroll if desired. Also different from standard Battleship rules is that there are more ships and sizes of ship, ships can be placed diagonally, and you get an extra shot whenever you hit an opponent's ship.