Mobile object

Mobile object, or "MOB", is the slang term given to any non-player character (NPC) or combatant in a video game. The term has been in use since the early days of online gaming, in the MUD community, then used in the more general sense that any NPC was a mob. The most common usage today is to refer to a monster, or a non-player enemy that may be hostile and can be killed.

Note that many players will use the word "mob" to refer to a group of enemies gathered at a certain point (following the basic meaning of the English word "mob"). The two meanings can often be interchanged seamlessly in a sentence with one person using "mob" to indicate one meaning but another person understanding the sentence clearly while thinking of the other meaning. An example would be: Go attack that mob over there.

For a list of "Mobs", see: Category:Bestiary.