Alien Shooter + Expansions (GOG)

A sealed military complex becomes a slaughterhouse when teleporters begin pouring alien creatures through its dark offices, warehouses, and laboratories. Alien Shooter is a no-nonsense top-down action classic built around overwhelming numbers, loud weapons, and corridors rapidly disappearing beneath piles of bodies. Its tone is unapologetically pulpy and grimy: humanity’s fate rests on one heavily armed survivor, while the soundtrack ramps up as each room turns into a desperate last stand. The included expansions extend that invasion with more missions, equipment, and chances to push deeper into the infestation.

Combat revolves around clearing compact, maze-like levels, finding keys and supplies, activating mechanisms, and destroying the alien-producing teleport devices before the swarm overwhelms you. Enemies arrive in enormous packs, with dozens visible at once and hundreds potentially filling a map, so positioning, retreat routes, and ammunition management matter as much as raw aim. Between missions, earned money buys stronger guns, armor, healing gear, drones, and biomechanical implants that improve the character’s survivability and firepower. Players choose either a male or female soldier, tackle a campaign of ten missions, and can also test endurance in Survival mode, where efficient weapon choices become increasingly important.

What keeps Alien Shooter effective is its sheer arcade clarity: every decision serves the pleasure of carving through a ridiculous horde with shotguns, miniguns, rockets, and experimental hardware. The fixed camera and simple controls show their age, but they also make the game immediately readable, while the reactive music and optional red or green blood add welcome B-movie personality. Rather than offering the tactical tension of XCOM or the exploration-heavy structure of Diablo, it delivers a compact, old-school swarm shooter closer in spirit to Crimsonland and early Sigma Team games. It suits newcomers looking for uncomplicated monster-blasting as well as veterans who enjoy chasing cleaner runs through dense enemy crowds.