Your players think they've seen everything the dungeon can throw at them. Then the stars align, and something from beyond the veil steps through. Mythos Monsters brings over 40 fully illustrated Lovecraftian creatures to your D&D 5th Edition table — each one designed to evoke genuine cosmic dread rather than just another stat block to grind through. From the shambling horrors of the deep to the unfathomable Great Old Ones themselves, this 74-page supplement gives GMs everything they need to run Cthulhu Mythos encounters that feel genuinely alien and terrifying. Who This Appeals To D&D 5E Game Masters who want to bring Lovecraftian horror into their campaigns — whether running a full cosmic horror arc or just dropping eldritch dread into an existing adventure. Also great for fans of Call of Cthulhu who want to bridge the gap to 5E. Features 40+ eldritch creatures: deep ones, faceless stalkers, shantaks, gugs, nightgaunts, hounds of Tindalos, and more Great Old Ones: Dread Cthulhu and Hastur the Unspeakable as fully statted encounters Pseudonatural templates to transform any existing monster into a xenoid abomination Epic variants for scaling creatures to high-level play Full artwork for every creature in the book 74 pages of ready-to-use content What You'll Experience The pseudonatural template system is the real secret weapon here — it lets you corrupt any monster in your existing library into something alien and wrong. Combine that with the expanded cult rules and the sheer variety of creatures, and you have a toolkit for building campaigns where the horror escalates naturally from session to session. Related Products Mythos Monsters for Pathfinder 2e — 90 eldritch abominations for PF2 campaigns Mythos Monsters for Pathfinder 1e — Lovecraftian horror for classic Pathfinder Tome of Heroes (5e) — Expanded player options and new classes for 5th edition Deep Magic Volumes 1 & 2 — Hundreds of new spells including dark and eldritch magic Call of Cthulhu: Cults of Cthulhu — Deep dive into Mythos cults for horror campaigns
