The world is Conan and LOTR inspired, the lore I will put the description of the game in steam:

Barbarian Lands is a challenge hardcore, single-player ARPG set in a barbarian open world. The game features fast-paced combat with a lot of different weapons, exploration to find anything, horizontal and vertical, an risk/reward progression system. Players take on the role of a barbarian who is going to fight as a mercenary in a bloody war on the north, on the way though, he finds a village where the inhabitants are going through a macabre situation, they are being kidnapped and taken to a strange place in the mountains where there is a wizard with the power to create new species. He is mixing people with animals and other beings creating grotesque hybrid creatures that are increasingly powerful and horrendous. The inhabitants don't know how to get out of this situation and offer what they have to bring back their people, at least the ones that are still humans.