Simple DS Series Vol. 20: The Senkan

Simple DS Series Vol. 20: THE Senkan (known as THE Battleship) is a maritime naval combat game released for the Nintendo DS in August 2007. Developed by Tamsoft and published by D3 Publisher, it is part of the budget-priced "Simple DS" series of Japanese games.

The title is a mix of action, simulation, and strategy where players control a battleship in various combat missions. Unlike traditional board games like Battleship, this title features active naval warfare where players must maneuver and fire on enemy fleets.