In the grim darkness of the 41st Millennium, Space Marines are the ultimate warriors humanity has to offer! Genetic manipulation and bio-engineering is used to make the Space Marines stronger, faster, and tougher than any mortal man. At the same time, extensive surgery is performed to implant special organs to make them absolute masters of the battlefield.

Standing seven feet tall and able to crush a man's skull with his fist, a Space Marine is almost inhuman in his power. Space Marines can fight for days at a time, heal wounds in minutes, and survive the most treacherous conditions. With his constant training, boltgun and power armour, the Space Marine is the most feared warrior throughout the galaxy.

In order to properly harness their might, Space Marines are organized into battle groups called Chapters. Though each Space Marine Chapter is relatively small, they are easily able to defeat armies many times their size. They do this with superior weaponry, armour, vehicles, and tactics. While the Imperial Guard are about as subtle as a sledgehammer, the Space Marines carry out missions with all the skill and precision of a surgeon's scalpel. Space Marines are equipped with the best weapons and vehicles ever created, from the massively powerful Land Raider tank to highly-mobile anti-grav Landspeeders to the near -immortal warrior machines known as Dreadnoughts, Space Marines have what it takes to get the job done and the battle won!

The Space Marines are the most powerful fighting force of the Imperium active in the 41st Millennium. Their zeal, intense training, genetic superiority and near overwhelming firepower allow them to face the enemies of humanity no matter what the conditions or environment. Although they are no longer quite human, they are humanity's best defense in the face of a galaxy that seems destined to try to destroy mankind.