Although similar in size, might, and Chthonian origin to hobgoblins, orcs are very different in outlook, being much more anarchic marauders. They can be distinguished by their greenish skin, their hunched postures, and their faces protruding forward rather than to the sides. As distant relatives of humans and giants, orcs have one opposable thumb and four other fingers to a hand, and their ears are set on the sides of their heads.
Orcs are extremely prolific, restoring those lost in constant wars and infighting through short and frequent pregnancies. This has also resulted in the profusion of half-orcs in surface-dwelling tribes, such as those who settled in the southern Empire of Altan after disastrous wars with the dwarves of the Teeth. In fact, full-blooded orcs in the Empire are starting to prefer living in Scarborough in Lindberg, where the dwarf-built underground tunnels shield them from the burning sun. Those still dwelling in Chthonia have had little contact with humans and no need to live in sunlight. There are also said to be massive raids to the surface during the sunless winter of the Isle of Berserkers.
Due to their respecting only strong leaders and not having a strong social structure, orcs of a given community tend to worship one single all-powerful god, although the identity of this patron deity varies depending on the tribe and its leadership. However, unless they have human blood, they are unlikely to have the dedication or mindset to devote themselves as clergy. Similarly, there are no sorcerous bloodlines known in older orc stock, only in those who have bred with humans, dragons, or other races. Study of wizardry is completely unknown in anarchic orc society.