5 games · 2016-2025
A connected line of games sharing characters, worlds, and signature gameplay loops.
Core themes: 3D · Action · First-person · Shooter





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Humanity is under siege as the full force of Mental’s hordes spread across the world, ravaging what remains of a broken and beaten civilization. The last remaining resistance to the invasion is the Earth Defense Force led by Sam “Serious” Stone and his heavily-armed squad of misfit commandos. Croteam returns with a high-powered prequel to the Serious Sam series that scales up chaos to unprecedented levels. The classic Serious Sam formula is revamped by putting an unstoppable arsenal up against an unimaginable number of enemies that requires players to circle-strafe and backpedal-blast their way out of impossible situations.
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Humanity is under siege as the full force of Mental’s hordes spread across the world, ravaging what remains of a broken and beaten civilization. The last remaining resistance to the invasion is the Earth Defense Force led by Sam “Serious” Stone and his heavily-armed squad of misfit commandos. Croteam returns with a high-powered prequel to the Serious Sam series that scales up chaos to unprecedented levels. The classic Serious Sam formula is revamped by putting an unstoppable arsenal up against an unimaginable number of enemies that requires players to circle-strafe and backpedal-blast their way out of impossible situations.

Deep into an abandoned temple of Egypt lies a cursed artifact, an ancient device capable of the unthinkable; Could this be the key to entering the mind of the god of destruction: Mental? This may be your only chance to delve deep into the twisted world of its mind, where [Sam]’s quest will lead him against reckless hordes of monsters product of Mental’s wicked imagination. Blast your way through the most hideous corners of its mind, and prepare for a brain-melting showdown!

Welcome back to the world of Serious Sam in ‘Siberian Mayhem’ – a new standalone chapter in the adventures of ‘Serious’ Sam Stone. Make your way through the vast Russian landscapes on a quest to catch up with the traitorous General Brand, who remains one step ahead of Sam at every turn. The road is long, and there is oh so much to see. Co-developed by Timelock Studio and Croteam, ‘Serious Sam: Siberian Mayhem’ presents an expanded look at a familiar journey full of forgotten stories, unexplored places, and Sam’s trademark guns-blazing battles against Mental’s Horde. Join the fight, comrade!

The iconic Serious Sam brings his trademark relentless intensity to this bigger, bolder, more colorful sequel to the classic Serious Sam: First and Second Encounters! Tasked with rescuing the universe one bullet at a time against overwhelming hordes of time traveling enemies, Serious Sam must battle through thick jungles, murky swamps, frozen tundra, and futuristic cities to bring down Mental and his vile armies. Serious Sam 2 is a shot of adrenaline to the hearts of first-person shooter fans across the world. This is serious!
Subseries, shared universes, and connected collections.