The Darkspawn have been known as many things. The whole curupted horde lead by a twisted dragon is the for coming of the blight, what could of been Thedas's ending if not for the wardens.

Their rituals secret, but there skills widely known. And rumored.

Full of warriors and mages. Humans, elf's, and dwarfs. Nobles, barbarians, and thief's alike keep the Darkspawn at bay. As there past is erased from them, and a duty to battle for all of Thedas.

Yet...

In another world, there is no blight. Though, monsters exist in this world as well. But they do not seek conquest against the people who live in there walls. But that is... Until there hungry. But in other places, guards will be there. Making them think their idea over.

In Thedas, mages are feared and kept at watch in the towers of Magi. If not there, then they are hunted by templars and called apostates.

Though, in Hyboria, mages are feared there as well. But also respected, and treated equally. Sometimes, better then other men.

Although there are powerful mages in Thedas, Hyborian sorcerers have power that can tear through time and even universes.

Such power is THE reason the sorcerers of Hyboria are feared. And there not at risk of demons possession. Though, anyone who makes deals with demons or uses them, has a price to pay.

But in Hyboria, demons are not the only powerful beings that walk the realm. Gods linger in the world too.

Speaking of Gods, there is The Maker, a god of Thedas. Though many doubt his existence, he may of died or left the realm in general. There is no certain answer in this.

Crom is the god of Hyboria, one of them at least. He is one that is favored, and may be one of the most powerful.

Though, from my speculations, the two are one. Making the possibility of vales and realms openable. Possibly a lazy god, who would not seal these things properly.

Yet... Thedas is going through the blight, and Hyboria is in no need of a hero. A king, maybe. But no hero is needed much. And maybe that is why the god of these world's has not sealed the vale properly.

To give Theda's a chance to live and survive. To keep the Darkspawn bay.