The Beyond the Threshold Fantasy Roleplaying rulebook defines a monster as “an animal, beast, being, or creature not of a playable ancestry, or any undead.”
By using Table M.8.1 of the BtT rulebook, a Mentor can quickly fill in stats and scale the monsters presented here to challenge a party of any level. Click here for instructions on how to read a monster’s stat block.
New monsters are posted weekly as part of the Monster Monday series! Click the name of a monster in the table below for more information on that monster.
Monsters
| NAME | DESCRIPTION | MM # * | DATE |
| Ahuizotl | Hand-tailed water vermin | 15 | 11/27/23 |
| Batshark | Mutant shark with batlike, fin-wings | 12 | 11/6/23 |
| Battlebat | Beastman with bat characteristics but a large beaked mouth | 3 | 8/7/23 |
| Beaked Lion | Lion with a beak | 6 | 8/28/23 |
| Beaked Panther | Panther with a beak | 6 | 8/28/23 |
| Birdorah | Three-headed, colossal bird dragon | 16 | 12/4/23 |
| Boargre | Ogre with swine-like features | 5 | 8/21/23 |
| Chimpmanzee | Apeman | 10 | 9/25/23 |
| Crocshark | Mutant shark with crocodilian forelegs and tail | 12 | 11/6/23 |
| Cynocephalus | Dog-headed humanoid | 19.1 | 2/26/24 |
| Geckofolk | Small variety of lizardfolk | 17 | 1/8/24 |
| Gibbonman | Small variety of apeman | 8 | 9/11/23 |
| Gorillaman | Large variety of apeman | 9 | 9/18/23 |
| Hati | Giant Chaos wolf- devourer of the moon | 21 | 4/15/24 |
| Iguanafolk | Medium variety of lizardfolk | 17 | 1/8/24 |
| Lizardfolk | Reptilian humanoid with lizard features | 17/18 | 1/8/24 |
| Manteater | Man-eating anteater | 7 | 9/4/23 |
| Marsh Gibberer | Mutant man-eater of the marshes | 4 | 8/14/23 |
| Monitorfolk | Large variety of lizardfolk | 17/18 | 1/8/24 |
| Mosquiskunk | Its body is that of a regular-sized skunk but with the head and wings of a giant mosquito | 2 | 7/31/23 |
| Murder Birds | Birds enchanted by a wizard to serve as their assassins or guardians | 1 | 7/24/23 |
| Oranguman | Apeman | 11 | 10/2/23 |
| Rat-thing | Mutant rodent creature | 19.2 | 2/26/24 |
| Scorpio Lion | Lion-sized, lion-headed scorpion | 13 | 11/13/23 |
| Slugfolk | Humanoid gastropods | 23 | 4/29/24 |
| Skoll | Giant Chaos wolf- devourer of the sun | 20 | 4/8/24 |
| Turkey Harpy | Hideous turkey with a distorted human head | 14 | 11/21/23 |
| Wyrm / Orm | Wingless, serpentine dragon | 22 | 4/22/24 |