WWII UBoat Submarine Commander is a free tactical war game where the player plays the role of a submarine commander in the Second World War. The war has just begun, and it is time for you to make your mark on the battlefield. You will be in command of a submarine, and your mission is to sink as many enemy ships as you can. To achieve this, you will need to make critical decisions, and it is up to you to determine how the war will turn out.

The player will have to manage the submarine, and it is up to him/her to choose how the mission will be accomplished. The player can choose to sink the enemy ships with the help of a crew member or with the help of a radar.