MMORPG

From GMWiki, the Gamemaker Wiki.

 mmorpg(good, quality, scale, 3d, laggy, quests, balanced)

Unfortunately, this function does not exist. Making an MMORPG is very, very difficult, and requires months, if not years of coding. MMORPG's require a knowledge of multiplayer programming, AI, pathfinding, spriting, and much more.

A new user to Game Maker should NOT try to make a MMORPG without making several other simpler games first. In addition, Game Maker is not well suited to large online games, and anyone looking to make a serious, full-scale MMORPG should probably learn a language such as C++, C or C#.