MapleStory is a F2P (free to play) 2D side-scrolling fantasy MMORPG set in Maple World. There are several different servers for different parts of the world to play on. You defeat monsters and complete quests alone or with up to 5 others in a group to improve your skills and increase your character's stats such as EXP points while acquiring the in-game currency Mesos. You can chat easily among members and fight co-operatively. (mobygames.com)