<s>
MU	B-Protocol
Online	I-Protocol
(	O
)	O
is	O
an	O
Isometric	O
medieval	O
fantasy	B-Application
MMORPG	B-Protocol
,	O
produced	O
by	O
Webzen	O
,	O
a	O
Korean	O
gaming	O
company	O
.	O
</s>
<s>
Introduced	O
in	O
2001	B-Application
it	O
is	O
still	O
being	O
supported	O
and	O
updated	O
in	O
2023	O
.	O
</s>
<s>
MU	B-Protocol
Online	I-Protocol
was	O
created	O
in	O
December	O
2001	B-Application
by	O
the	O
Korean	O
gaming	O
company	O
WEBZEN	O
Inc	O
.	O
Like	O
most	O
MMORPGs	B-Protocol
,	O
players	O
create	O
a	O
character	O
among	O
nine	O
different	O
classes	O
and	O
set	O
foot	O
on	O
the	O
MU	O
Continent	O
.	O
</s>
<s>
MU	O
is	O
populated	O
by	O
a	O
large	O
variety	O
of	O
monsters	O
,	O
from	O
simple	O
ones	O
like	O
goblins	O
and	O
golems	B-Application
,	O
to	O
more	O
challenging	O
ones	O
such	O
as	O
the	O
Gorgon	B-Device
,	O
Kundun	O
or	O
Selupan	O
.	O
</s>
<s>
Each	O
progressive	O
class	O
change	O
grants	O
,	O
gain	O
access	O
to	O
new	O
spells	B-Application
,	O
skills	O
,	O
weapons	O
and	O
wings	O
as	O
well	O
as	O
an	O
associated	O
change	O
in	O
appearance	O
.	O
</s>
<s>
Like	O
most	O
MMO	B-Application
games	I-Application
,	O
characters	O
in	O
MU	O
can	O
use	O
many	O
different	O
kinds	O
of	O
magic	O
and	O
special	O
abilities	O
.	O
</s>
<s>
Each	O
character	O
has	O
its	O
own	O
set	O
of	O
spells	B-Application
,	O
and	O
some	O
weapons	O
may	O
be	O
enchanted	B-Application
to	O
provide	O
the	O
character	O
with	O
a	O
specific	O
spell	B-Application
.	O
</s>
<s>
Casting	O
a	O
spell	B-Application
costs	O
MP	B-Application
(	O
mana	B-Application
,	O
or	O
magic	B-Application
point	I-Application
)	O
and	O
sometimes	O
AG	O
or	O
stamina	O
.	O
</s>
<s>
Mu	B-Protocol
Online	I-Protocol
has	O
a	O
built-in	O
chat	O
system	O
that	O
allows	O
all	O
visible	O
players	O
to	O
communicate	O
easily	O
via	O
text	O
.	O
</s>
