Warhammer 40k - Deathwatch - Mark Of The Xenos.pdf [verified] Jun 2026

Tips for GMs running it

The title, Mark of the Xenos , is a nod to the Deathwatch’s obsession with cataloging alien weaknesses. In the lore, a Kill-team that destroys a previously unknown alien species is allowed to brand a new "Mark" (a pictographic rune) into the Chapter’s records.

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Warhammer 40K - Deathwatch - Mark Of The Xenos.pdf

While the Deathwatch Core Rulebook provides the rules for playing an Astartes and a handful of basic enemies, the galaxy is a crowded place. Mark of the Xenos is the "Monster Manual" for the Jericho Reach. It expands the roster of antagonists significantly, providing Game Masters with the stats, lore, and tactics needed to challenge Kill-teams of any rank.

The Vigil is eternal. The Alien dies.

This 146-page supplement is a comprehensive field guide to the enemies lurking in the Jericho Reach, the setting for the Deathwatch RPG. It is structured into clear chapters, each focusing on a specific category of foe:

This is the largest section of the book, covering over 35 hostile alien species. While it features the expected heavy-hitters like Tyranids, Orks, and the Tau Empire, it also introduces obscure horrors unique to the Jericho Reach. Tips for GMs running it The title, Mark

For the ordinary citizens of the Imperium, the alien is a nightmare to be fled. For the Astra Militarum, it is a foe to be outgunned. But for the Deathwatch, the alien is a target to be studied, understood, and executed with extreme prejudice.