4 HD Monsters
in Old-School Essentials Advanced Fantasy Genre Rules
13 monsters
- Flail Snail
- Ghast - Undead monsters similar to ghouls but smarter and more powerful, surrounded by an overwhelming stench
- Giant Jellyfish
- Giant Pike - Aggressive predators found in larger and deeper lakes
- Giant Wasp - Giant wasps with paralysing poison stingers that carry victims to their nests
- Gibbering Mouther - A horrible creature seemingly drawn from a lunatic's nightmares with the fluid body of an amoeba
- Gorilla
- Hippocampus - The horse of the sea, with a mane that looks like seaweed and a dolphin's tail
- Jackalwere - Strange shapeshifting creatures that can assume jackal or human form
- Merrow
- Peryton - Strange chimerical creature combining the wings, body, and legs of a large bird with the head, neck, and antlers of a deer or stag
- Spawn of the Worm
- Yeti - A bipedal ape-like creature averaging 7-9 feet in height and weighing around 300 pounds