Only Monsters Here is a setting supplement for The Nightmares Underneath (second edition) that focuses on overland exploration in a hostile wasteland full of monsters. It is a product of the Monthly Monsters patreon.
Both pdf and print versions are letter landscape (11 x 8.5). DriveThruRPG only offers the premium colour option for this format, but you can find a standard colour version on Lulu.
Only Monsters Here contains:
An overland hexcrawl exploration setting, with factions, landmarks, a hex map, and new rules for travel and vehicles. There is both a dangerous wasteland AND a ruined city to explore.
Numerous random tables for generating dungeons, encounters, events, settlements, and other locations.
Playable monster types, including chaos riders, dark elves, goblins, mutants, pirates, orcs, spider people, and trolls.
A complete bestiary with over a hundred different monster stat blocks.
A conversion guide for other old school fantasy role-playing games, in case you want to use this setting with a different set of rules.
- from the publisher's blurb