Claiming to be the number one resource for core online gamers,[2][3] Quantcast estimated monthly unique traffic in 2013 in excess of 30 million visitors.[4] Curse has several primary functions, the most notable of which include an add-on and modification service called Curse Client[5] for such games as World of Warcraft, Rift, The Elder Scrolls V: Skyrim, Terraria, Kerbal Space Program, and Mine