The Classic Serious Sam game is back with updated visuals for the PC on a brand new engine. Team up in this no holds barred shooter.
More Info @ PCGamingWiki
Serious Sam was first released on the PC in 2001.
You are Sam "Serious" Stone a legend in his time, due to his extreme bravery in battle. As attempts to defend the solar system fail the planet Earth is coming under direct attack, and humankind stares into the face of its own annihilation.World leaders turn to their only hope, an ancient artifact called the "Time-Lock" that can teleport a single person back in time. The choice of whom to send is obvious... You are the only hope for humankind. Return the past and change it by exterminating the evil forces determined to end humanity.