"Viking V.S. Pirate" is a twist version of a regular tower-defense game. The unique feature of it is instead of building tower to prevent enemies from reaching the end of the path for each level, players will deploy units that try to break through the defense of the tower. The main objective for the game is to take away the life point until it reaches zero since each unit the players deploy can take away one or two life point base on what types of unit is it when the unit reaches the end of the path. Although the style of gameplay is different from normal tower-defense game, the goal is still similar which is to develop the best strategy that can beat the levels of the game.