In this universe, the Grail is reimagined as a powerful alien artefact capable of turning the tide of the war against Mental’s overwhelming forces.

The game features the Legion System , which allows for battlefields teeming with thousands of enemies at once.

In , the story serves as a high-octane prequel to the franchise, taking place before the events of Serious Sam 3: BFE . Humanity is on the brink of total collapse as the alien overlord Mental unleashes his hordes across a broken Earth. The Quest for the Holy Grail

You use an explosive variety of weapons, from the classic double-barreled shotgun to a chainsaw launcher and the iconic cannon.