Extinct chapters

This page is dedicated in remembrance of all those Space Marine Chapters that are entirely and definitely very dead. This does not include chapters that fell to Chaos, so all those lost during the Abyssal Crusade aren't listed here.

Astral Knights

Sacrificed their chapter to destroy the Necrons' World Engine in 926.M41.

Crimson Castellans

This chapter was fighting against renegades from their own chapter when a Tyranid Hive Fleet came by and ate them both

Crimson Consuls

Seriously, don't put crimson in the chapter's title if you want it to live. Supposedly this chapter was taken out piece by piece by an alpha legionairre.

Emperor's Swords

Destroyed by the Alpha Legion who contaminated their recruiting pool and implanted subconscious triggers in their recruits.

Emperor's Swords again

Based on Bellicas, which turned out to be a tomb world. Begin face-palming.

Knights of Eternity

Another chapter presumed to have been eaten by the Kraken.

Obsidian Glaives

Chapter destroyed by the Red Waagh. Detailed in Sanctus Reach campaign.

Shadow Wolves

Nommed by nids. Black Templars found the last surviving member holding their chapter banner aloft even as he died; hardcore.

Tiger Claws

Lost in the warp, surviving members absorbed by their pals, the Astral Claws.