Ragnarok Online 2 has been made available for download on Steam starting May 2nd. The game brings back some of the mainstays of the original: Familiar classes, pets, cards, and other systems have all been included in the sequel. A lot of what makes Midgard home to players is available; it just happens to be returning in an updated and immersive 3-D world.
Ragnarok Online 2 launch was delayed for several years because of many development problems and can be considered a rather old-school MMORPG. In contrast with its predecessor Ragnarok Online 2 will be a fully 3d world but adventurers who have explored the world of Ragnarok Online 1 will instantly recognize many of the famous monsters and landmarks as they journey the world of RO2.
Source: massively.joystiq.com