Goblins were creatures from back when Saecreil had magic. They were humans that had made a pact with an ArchDemon. They were the only race to be nearly annihilated by God, meaning the first time he actually killed something himself. However he allowed a select few of them to survive out of mercy. They went into hiding. However after the dark war, where the North destroyed the south 30 years ago, all the dark magic in the atmosphere corrupted the few surviving and hiding goblins, creating Orcs, something that none of humanity yet knows exists.