Different Between Virtual Worlds, Simulators, and Video Games

Virtual Worlds are created by users and have been known for being multi-user, shared experiences. Virtual Worlds allow users to come together and be apart of something like a community. It is what the users make of it. The users create what you construct in the virtual worlds. People create content in the VW's.

Video Games distinguishing factor is that it has goals. Video games always require some type of goal whether it be points, money, status, or even 'kills' or frags. There are specific goals that will allow a player to enhance in the game.

Simulators are usually single user experiences i.e. flight simulator or medical simulator. The end use is in the simulator going through the simulation for one specific reason typically, whether it be instructional or for enjoyment. These simulators can be complex or as simple as walking like with the NASA Spacewalk Simulator.