Alien Shooter is the unique mix of Action Role-playing, Top-down Shooting, and Single-player video game set in science-fiction environment developed and published by Sigma Team Inc. The game acts as the first installment in the series of the Alien Shooter video game, followed by Alien Shooter: Vengeance. There are several playable characters and each has four stats such as Health, Accuracy, Strength, and Speed. The player begins the game by selecting his character either as a male or a female. The game is presented in the isometric perspective and it contain nine different levels with increasing difficulty. The goal of each level is to slay all the aliens and to do so, the player must access all sections of the map and kill the alien creatures. Higher levels have teleported devise, spawn foes infinitely and can be smashed by explosives scattered throughout the level. In the game, the defeated aliens drop pick-ups, containing money, ammo, and health among other items. The player can purchase powerful weapons in the shop between the levels.