<s>
A	O
mob	O
,	O
short	O
for	O
mobile	O
or	O
mobile	O
object	O
,	O
is	O
a	O
computer-controlled	O
non-player	O
character	O
(	O
NPC	O
)	O
in	O
a	O
video	O
game	O
such	O
as	O
an	O
MMORPG	B-Protocol
or	O
MUD	B-Application
.	O
</s>
<s>
Monster	B-Application
versus	O
monster	B-Application
(	O
MvM	O
)	O
battles	O
also	O
take	O
place	O
in	O
some	O
games	O
.	O
</s>
<s>
The	O
term	O
"	O
mobile	O
object	O
"	O
was	O
used	O
by	O
Richard	O
Bartle	O
for	O
objects	O
that	O
were	O
self-mobile	O
in	O
MUD1	B-Protocol
.	O
</s>
<s>
Later	O
source	O
code	O
in	O
DikuMUD	B-Application
used	O
the	O
term	O
"	O
mobile	O
"	O
to	O
refer	O
to	O
a	O
generic	O
NPC	O
,	O
shortened	O
further	O
to	O
"	O
mob	O
"	O
in	O
identifiers	O
.	O
</s>
<s>
DikuMUD	B-Application
was	O
a	O
heavy	O
influence	O
on	O
EverQuest	B-Protocol
,	O
and	O
the	O
term	O
as	O
it	O
exists	O
in	O
MMORPGs	B-Protocol
is	O
derived	O
from	O
the	O
MUD	B-Application
usage	O
..	O
</s>
