Croteam officially announced Serious Sam 3: BFE as a prequel to the original Serious Sam game.
Serious Sam 3: BFE, a first-person shooter game developed by Croteam and published by Devolver Digital, was released for Microsoft Windows.
Serious Sam 3: BFE was released for Xbox 360 platform.
Serious Sam 3: BFE became available on Linux platforms.
Serious Sam 3: BFE was released for Mac OS X users.
The alien forces led by Mental launch their invasion of Earth, starting the deadly conflict known as the Mental War.
Human forces mount a significant resistance against Mental's forces in Old Egypt, with notable guerrilla warfare tactics.
The legendary hero Sam 'Serious' Stone arrives to fight the alien invasion, marking the start of his campaign to push back the Mental forces.
Sam and human resistance fighters assault Hims, attempting to reclaim the city from Mental's control and gain strategic advantage.
Sam discovers the base beneath the Great Pyramid which the alien forces use as a stronghold and energy source for their invasion.
The climactic assault inside the Great Pyramid where Sam fights to stop Mental and deactivate his alien technology threatening Earth.