A.L.I.A.S

You move with the WASD keys and aim with your mouse, which gives the shooting a direct, responsive feel. Your character has a fast-firing gun, and you use it to clear rooms of enemy soldiers and destroy obstacles like crates. Each enemy you defeat restores a small amount of health, a mechanic that encourages aggressive play. Power-ups occasionally appear to give you a temporary edge. The game moves at a brisk pace, and the difficulty comes from the sheer number of enemies and the need to keep moving. It feels like a concentrated burst of arcade-style combat.