Fathom: Tome of Foes

Intricately painted ceilings and walls of a world that once was give way to great corridors clotted with rails and shambling masses; tunnels branching and yellow-lit with artificial fluorescent lights. Vast areas go unmaintained; leaking and dangerous. Sections of the underground are deserted and unfinished; sloppily abandoned long ago. There are well trodden paths leading to “cities”; areas locked down and ruled with iron fists. These are the last vestiges of civilization aside from the communities dwelling in the unexplored caverns of Earth’s crust. Ancient sealed air locks lead to the great ocean, a strange dark land far from the sun’s illumination. Strange things happen there, and all those who sneak into the watery world-grave fear the stalking terrors of the deep. The little gear you have is well worn and battered; either scratch built or generations old. Above are the ruined Art Deco remains of the past. Below is a brutalist hellscape. Something strange and alien exists even deeper than that. This is Fathom.

In Fathom's Tome of Foes, GMs will find hordes of creatures with which to fill their campaign settings. The pages are riddled with, but not limited to: aliens stranded by wandering comets, sea-favored humanoid cults, automatons warped by the World Grave, sharks, crabs, big sharks, big crabs, ghosts, giant squids (because you can't have an underwater game without giant squids), unspeakable abominations, and... dragons? Only you can find out on your adventures in the World Grave. Happy hunting!