Monsters are native animals in the world of Ragnarok. Some are passive and do not attack more civilized beings such as Normans and Dwarfs. Others are very aggressive towards Normans and would stop at nothing to destroy whatever comes their way. A few can be tamed to become pets or riding mounts.
Many monsters are demons or undead Normans. Care must be taken when faced with these particular monsters.
Monsters can be either normal monsters or bosses.