This allows you and a group of friends to have a more personal experience, exploring, adventuring, or completing quests in your own private dungeon. You also have the ability to invite others into your instance to join you. This relieves many of the camping, kill-stealing, and farming issues wow power leveling that MMORPGs sometimes face. The monsters in instances are typically more powerful, so groups of players will have to work together to defeat them, but with greater dangers come greater rewards!