Warhammer 40k

Space Marine Chapters

Space Marines
Black Templars
Blood Angels
Dark Angels
Deathwatch
Grey Knights
Space Wolves

Armies of the Imperium

Adeptus Custodes
Adeptus Mechanicus
Adepta Sororitas
Astra Militarum
Imperial Knights
Imperial Agents

Xenos

Tyranids
Necrons
T'au Empire
Orks
Drukhari
Aeldari
Genestealer Cults

Chaos

Chaos Knights
Chaos Daemons
Chaos Space Marines
Thousand Sons
Death Guard
World Eaters
Emperor's Children