MapleStory is a free-to-play, 2D, side-scrolling massively multiplayer online role-playing game, developed by the South Korean company Wizet and released on April 29th 2003. Several versions of the game are available for specific countries or regions, and each is published by various companies such as Nexon. In the game, players travel the "Maple World", defeating monsters and developing their characters' skills and abilities as is typical in role-playing games. Players can interact with others in many ways, such as through chatting, trading and playing minigames. Groups of players can band together in parties to hunt monsters and share the rewards and can also collaborate forming guilds to interact more easily with each other. Like most MMORPGs, gameplay centers on venturing into dungeons and combating monsters in real-time. The players combat monsters and complete quests, in the process acquiring in-game currency called "Mesos", experience points and various items. Players are able to acquire in-game professions, allowing them to craft equipment, accessories or potions.Players have a variety of options when interacting with others online: They can form parties where loot and experience are distributed from a monster; in-game marriageswhere the game will recognize the two players as a heterosexual couple; guilds which is indicated with a guild's name listed under their character name; or families, an architecture gathering of juniors and seniors. Players are also able to raise or lower the in-game popularity stat entitled Fame of other players and compete with other players in minigames, such as Gomoku or Concentration. They may also engage in trading activities for "Mesos" or other in-game items (though subject to virtual tax). MapleStory characters exist in worlds or servers. Players are able to create multiple characters in each world, though the characters in different worlds can not interact with each other.