"Alien Shooter" is a top-down shooter video game developed by Sigma Team. Released in 2003, it features fast-paced gameplay where players battle waves of alien creatures in various environments. The game offers a variety of weapons and upgrades, allowing players to customize their characters and improve their combat abilities. The game includes multiple modes, such as a campaign and survival mode, providing different challenges for players. With its simple controls and engaging mechanics, "Alien Shooter" has gained a dedicated fan base and has inspired several sequels and spin-offs, expanding the Alien Shooter franchise.