Ragnarok Online brings back the glory days of MMORPG across generations! The gameplay is heavily based around Norse mythology, wherein the characters are taken from the stories around Ragnarök. Player characters interact in a 3D environment but are represented by 2D character sprites for front, back, side and diagonal facings. The major types of server-supported gameplay are Player vs Environment, Guild vs Guild, Player vs Player. Also supported by the game server are Group vs Group, Arena Combat, Player vs Monster, Player vs All, and various other specific scenarios at designated instance locations in the game world. Non-player character-run challenges and contests are also available with prizes, awards, and/or in a specific hall of fame listing.