D&D 5.0/5e: 3rd Party - Iron Kingdoms: Borderlands SurvivalGuide (Privateer Press) - 978-1943693771

In the Borderlands Survival Guide, GMs will find a plethora of variant and optional rules for horrifying diseases, the crippling effects of fear and madness, and hostile environments to put unwary adventurers to the test. The Borderlands Survival Guide, presented by famed monster hunter Alten Ashley and a collection of experts on everything the Iron Kingdoms and its borderlands have in store, has countless ways to surprise even experienced adventurers, including a horde of never-before-seen monsters to test every last ounce of your players' resolve.