The published books and supplements for Mythras have no shortage of monsters from which to choose, but I enjoy adapting my own creatures to the rules, based on literary sources I've found particularly inspirational. Here are some more-or-less humanoid monsters that I've adapted for the Mythras rules (stat blocks in links).
See if you can recognize my sources of inspiration for each.
Bat-fiends appear as great, vaguely humanoid, bat-like monstrosities. They stand over seven feet tall and their wingspans stretch over twenty feet. The head of a bat-fiend is great, twisted and black; with large, pointed ears; hateful red eyes; and a huge vicious mouth, full of wicked fangs.
In combat the bat-fiend will claw its victim, grappling him if successful, and bite viciously at the neck, sucking one level of Fatigue worth of blood per round until interrupted or the victim is dead.
Beastmen are monstrous creatures, standing around seven feet tall and being very muscular. Their bodies are covered in thick, coarse hair ranging in color from russet, to brown, black, and in arctic environments, white. Though vaguely humanoid in appearance, beastmen are both primitive and bestial. Their eyes are those of a savage predator, while their ears are wolf-like, set high on their heads. A beastman's mouth is full of long sharp fangs, and their nose is broad and flat, like that of a great ape.
In combat beastmen usually fight with their sharp claws and fangs, often utilizing their great strength to overbear an opponent before rending them to shreds, though some employ simple weapons like clubs are stone-tipped spears. Whenever possible, they prefer to ambush their foes.
Beastmen are also known as almas, apemen, and kaptar.
Draconians are large, reptilian humanoids standing over seven feet tall. Their bodies are covered in scales, with a powerful tail and clawed hands. Their heads are distinctly dragon-like, crested and often horned; and great, leathery wings grow from their shoulder blades. Draconians have the ability shape-shift into human form, but they must regularly drink human blood to maintain their human shape. Many draconians are powerful sorcerers.
The origins of the draconians are shrouded in mystery, with certain legends suggesting that they came down from the stars in ancient times.
Cave goblins are a race of short, albino humanoids. Their hairless, emaciated bodies stand around three feet tall. Their faces are apelike, with bulging, bloodshot eyes and a large mouth full of irregular fangs. In combat they attack with their long, wicked claws and their fangs.
Cave goblins are nocturnal, living in swamps, dark forests, caves, and sometimes under human dwellings. Cave goblins are more akin to animals than men; they have no language, culture, or society, and neither wear clothing nor use tools or weapons.
Forest goblins are a race of short, monstrous humanoids. Their lean, hairy bodies stand around four feet tall. Their faces are bestial, with bulging, eyes; large, pointed ears; and a large mouth with sharp fangs. In combat they typically use their claws to try to strangle their enemies, while biting viciously at their faces.
Forest goblins are nocturnal, preferring to dwell in dark forests. Forest goblins are intelligent, capable of speech, and occasionally wear stolen bits of clothing or jewelry, and frequently use improvised tools and pilfered weapons.
Hobgoblins are a vile race of stunted, pygmies, standing around four feet tall. They have primitive features such as beetle-brows and receding chins and foreheads. Hobgoblins tend to have olive to light brown skin tones and lank, black hair; their slanted eyes are brown.
Hobgoblins are very technologically primitive and inhabit a stone-age level society, living in caves and digging mole-like tunnels beneath the earth. They are typically armed with simple weapons like clubs, short spears (treat as javelins), knives, and hand axes, fashioned of stone, wood and bone.
Hobgoblins are also known as brownies, pech, trow and "the little people".
Forest ogres are a race of monstrous humanoids known for their stupidity and taste for human flesh. Standing six to eight feet tall, forest ogres are both hulking and powerful, with primitive and brutish characteristics such as beetle-brows and receding chins and foreheads. They are distinguished by their ram-like horns and their jutting, tusk-like teeth.
Forest ogres live in small, isolated family groups far from human settlements, and often arm themselves with great axes, clubs or spears.
Hill ogres are a degenerate race of great, humanoids renowned for their ferocity, cruelty and taste for human flesh. Standing seven to nine feet tall, hill ogres are long-limbed and powerful, with primitive and brutish characteristics such as beetle-brows and receding chins and foreheads, and most have some combination of deformities such as hunchbacks, two heads, or extra limbs.
Hill ogres live in small, isolated family groups near human settlements. They have virtually no culture and create only the most primitive tools. Hill ogres often arm themselves with great clubs.
Ratlings look like naught other than monstrous rats cast in the mockery of human form. These humanoid vermin stand around five feet tall and weigh about 120 lbs.
Ratlings never forge their own weapons, though they often arm themselves with stolen swords and bows and for protection they often use small shields and occasionally wear scavenged breastplates or mail shirts. Victims bitten by a ratling have a 85% chance of being infected with the Black Death, Small Pox or Rabies, while those injured by their filthy weapons are likely to suffer Blood Poisoning.
Ratlings infest the sewers of many great cities.
Mountain trolls are a race of reclusive humanoids, standing eight to ten feet tall. Mountain trolls are distinguished by their prodigious snout-like noses, pointed ears, and lion-like tails. Many mountain trolls are powerful magicians, primarily illusionists, mystics, seers and witches.
Mountain trolls live in small, isolated family groups far from human settlements. They often arm themselves with great spears, clubs, or mauls.
Swamp trolls are a race of monstrous humanoids known for their stupidity, taste for human flesh, and extreme viciousness. Standing six to seven feet tall, swamp trolls are both hulking and misshapen, with long, ape-like arms, squat, bowed legs, and a perpetually hunched forward posture. Swamp trolls are distinguished by their rubbery, wart-covered, dark-green skin; beak-like snouts; great, snaggle-toothed maws; and spiked-clubbed tails. When injured, swamp trolls regenerate two Hit Points per Combat Round in every damaged location. Regeneration will cease if the troll dies.
Swamp trolls live in small, isolated family groups far from human settlements. They have virtually no culture and create only the most primitive tools. Swamp trolls often arm themselves with great axes, clubs, or spears.
