The Great War (2020)

From publisher blurb:

The Great War displayed humanity’s potential to commit to wholesale, ceaseless slaughter of their own species.

In such an era, the Scar tears asunder, and the Beshilu rejoice in the mire of the Western Front. Meanwhile, soldiers who, by every right known to mortals should be dead, stand back up to rejoin the battle — or fight back against the Reapers stalking battlefields throughout Europe.

Now, both werewolves and Sin-Eaters will struggle to coexist, do their duty, and avoid getting caught up in one of history’s deadliest wars.

Requires the use of the Werewolf: the Forsaken Second Edition Rulebook Promethean: the Created Second Edition Rulebook, and Geist: the Sin-Eaters Second Edition Rulebook.