The Adeptus Astartes, also known as Space Marines, are superhuman warrior-monks who fight for the Imperium of Man. They wear mechanised suits of armour and have modified genomes that grant them superhuman strength and endurance. The legions listed are those that remained loyal to the Emperor and the Imperium after the Horus Heresy.
| Legion Number |
Army |
Primarch |
| I |
Dark Angels |
Lion El'Johnson |
| II |
Unknown |
|
| V |
White Scars |
Jaghatai Khan |
| VI |
Space Wolves |
Leman Russ |
| VII |
Imperial Fists |
Rogal Dorn |
| IX |
Blood Angels |
Sanguinius |
| X |
Iron Hands |
Ferrus Manus |
| XI |
Unknown |
|
| XIII |
Ultramarines |
Roboute Guilliman |
| XVIII |
Salamanders |
Vulkan |
| IXX |
Raven Guard |
Corvus Corax |