The mythology of creatures in Heroes (Goblins and Co.).

Thanks for the story, but if everything were based on mythology, then Titans should be monsters, but here they are completely different, and zombies shouldn't be like that either, and neither should gargoyles. Golems, according to mythology, should grow, and elves shouldn't be like Tolkien's elves. Demons should also be different, and I'm not even talking about poltergeists; ethereal ghosts shouldn't die immediately.

Titans - in mythology, they are not monsters.

Zombies - an animated corpse, incapable of thinking, feeling, or making independent decisions, existing only to carry out the orders of its creator - a sorcerer. How are the Zombies in the game incorrect?

Elves:
Elves are similar to humans, only smaller, more beautiful, and more refined. They live in forests and lead a nocturnal lifestyle.
In early Germanic-Scandinavian mythology, they are an ageless, magical, beautiful race, living like humans on Earth, or in their own magical country, which was also described as physically real (since, according to legends, people go there and return alive). This view of elves, partially preserved, even reached the Middle Ages and remained imprinted in language, names, culture, and genealogy.
So, everything is basically correct.

Demons - yes, demons should be different.

Ghosts - yes, the instant death of ghosts is a drawback.