Wikipedia
RaiderZ
Raiderz (stylized as RaiderZ) was a massively multiplayer online role-playing game (MMORPG) developed by the now defunt Korean developer MAIET Entertainment. It was published in North America on November 2012 by Perfect World Entertainment. The game is free-to-play and no monthly subscription fee is required due to the service being funded by real money transactions via the in-game cash shop.