World of WarcraftUS is a MMORPG title released by Blizzard Entertainment in 2004
. It is an online role-playing experience set in the award-winning Warcraft universe . It is set in a fantasy world of Azeroth where human and other monsters roam the virtual world . Players assume the roles of Warcraft heroes as they explore , adventure , and quest across a vast world . Being "Massively Multiplayer" , World of Warcraft allows players to interact within the same world, and adventuring together or fighting against each other in epic battles .