Step into the shoes of the legendary action hero Sam "Serious" Stone and experience one of the most explosive shooter game series of all time as you save the world from a merciless alien invasion. Visit the ruins of ancient Egypt and roam through the vivid arenas of South America fighting seemingly neverending hordes of enemies using an extremely destructive arsenal including shotguns, heavy lasers, rocket launchers, a huge cannon, and an iconic minigun. MultiplayerTired of playing alone? Go to war against Mental's horde with up to 16 players online or 4 players in local co-op, blasting your way through the campaign or the stand-alone survival mode. Finally, put your skills to the test against other players in classic multiplayer modes including Deathmatch, Team Deathmatch, and more.