Already thrown everything from the Monster Manual at your party? Looking for something new, different, and exciting to TPK your group with? Look no further than Grim Hollow, a new monster book with over 400 new monsters to unleash upon unwary adventurers. The book is up on Kickstarter now.
From the campaign:
Grim Hollow: The Monster Grimoire offers over 400 new monsters, tailor-made for a dark fantasy campaign. The foes detailed in this supplement, ranging from capricious fey to corrupt fiends, can fit nicely into any 5e campaign where the players are looking for a devious and deadly challenge.
Savage beasts, twisted aberrations, and unrelenting undead: the Monster Grimoire has covered all of your needs. The book also contains a variety of player-facing content to immerse them into a dark setting: terrible familiars, twisted sidekicks, and more!
The campaign's closing in on 15x funded with 32 days to go.