The Halloween Grimoire is a bestiary and campaign supplement for Dungeons & Dragons 5e, packed with the monsters, villains, and haunted oddities that make October session nights unforgettable. This book gives you more than plain zombie and ghost stat blocks: it delivers full categories, signature villains, treasures, and DM tools designed to make your Halloween one-shots and long campaigns terrifyingly seasonal.
Whether you are building a candy-crawling dungeon, staging a harvest-time cult uprising, or unleashing masked killers across a haunted carnival, this book equips you with everything needed to make Halloween its own campaign theme instead of just a holiday backdrop.
What’s Inside The Halloween Grimoire?
From Samhain lore to modern trick-or-treat streets, learn how to fold Halloween into your worlds. Build adventures that mix fear, festivity, and folklore. See why Halloween belongs as a campaign centerpiece.
Six categories, each with their own tone, monsters, and humor:
Candy Monsters. From the Candy Corn Crawler to the Caramel Ooze and the Chocolate Horror, these sugar-spawned nightmares infest taverns, dungeons, and entire villages with sticky terrain and sickly temptation.
Graveyard Mash. The Ossuary Titan, Pallbearer, and Gravemonger stalk cemeteries and crypts, bringing skeletal swarms, soul-draining shades, and cursed effigies to unquiet graveyards.
Harvest Horrors. Bonfire Scarecrows, Hay Bale Hulks, and the Corn Maze Minotaur rise from the fields, accompanied by cursed gourds, spectral farmers, and famine spirits.
Laughing Dead. Punning horrors like Nosferachoo, Booyon the Ghost Chef, and Frankenfine combine humor and terror in equal measure, ensuring no table forgets the strange joy of Halloween undead.
Slashers. Stalkers and icons like the Mama’s Boy, Doomadook, Meatcleaver Brute, Doctor Hannoran, and Lake Revenant bring cinematic, unstoppable killers to your campaign.
Spooky Ghosts. The Booquet Bride, Chainsmoking Wraith, Sheet Sneaker, and Ectoplasmic Foodie haunt halls, kitchens, bedrooms, and banquet tables with spectral antics both funny and fatal.
Twenty-three original items from common trinkets to legendary artifacts, including the Ghastly Carnival Mask, Jack’s Lantern, Jawbreaker Shard, and Bag of Haunted Treats. Each is designed to reinforce the Halloween theme, tempting players with tricks as often as treats.
A toolkit to instantly give any session a Halloween edge:
Environmental Effects to reshape battlefields with necrotic fog, cursed fields, or sticky candy terrain.
Fear and Madness Tables to create tension, quirks, and escalating dread.
Trick-or-Treat Tables that let players gamble on candy buffs or curses.
Faction Crossovers so Candy Monsters can invade graveyards, or Slashers can stalk corn mazes.
Lair Templates including cornfields, pumpkin patches, haunted manors, and carnival midways.
Holiday Hooks to launch one-shots or seasonal arcs in minutes.
And yes, full rules for what happens when your players eat the candy monsters.
Because Halloween isn’t just a theme. It’s a full campaign season. This Grimoire transforms pumpkins, costumes, candy, and killers into a system of monsters, items, and DM tools that scale from goofy one-shots to serious horror campaigns.
Carve the pumpkins, carve into your players.
Now carve out everything you need for a Halloween session!
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