Chaos Space Marines are elite warriors in the Warhammer 40,000 universe, originally loyal soldiers of the Imperium of Man who turned to the dark powers of Chaos. They are heavily armored and wield powerful weapons, often enhanced by the corrupting influence of the Chaos Gods, which grants them unnatural abilities and resilience. These warriors are known for their diverse and chaotic appearance, often adorned with symbols of their patron deities. They serve various factions, such as the Black Legion or the World Eaters, and are driven by a desire for power, revenge, and the destruction of their former allies in the Imperium.