<s>
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
,	O
or	O
WoW	B-Protocol
,	O
is	O
set	O
in	O
a	O
fictional	O
universe	O
,	O
its	O
primary	O
setting	O
being	O
the	O
planet	O
of	O
Azeroth	O
.	O
</s>
<s>
The	O
first	O
expansion	O
,	O
The	B-Application
Burning	I-Application
Crusade	I-Application
,	O
introduced	O
a	O
second	O
planet	O
,	O
Outland	O
.	O
</s>
<s>
Wrath	B-Protocol
of	I-Protocol
the	I-Protocol
Lich	I-Protocol
King	I-Protocol
and	O
Cataclysm	O
expanded	O
upon	O
Azeroth	O
and	O
respectively	O
added	O
Northrend	O
,	O
the	O
frigid	O
northern	O
continent	O
of	O
Azeroth	O
,	O
and	O
drastically	O
changed	O
various	O
other	O
continents	O
by	O
destroying	O
some	O
and	O
unveiling	O
new	O
ones	O
.	O
</s>
<s>
The	O
next	O
expansion	O
,	O
Mists	B-Application
of	I-Application
Pandaria	I-Application
,	O
added	O
Pandaria	B-Application
,	O
the	O
southern	O
continent	O
previously	O
hidden	O
behind	O
a	O
perennial	O
mist	O
cover	O
.	O
</s>
<s>
Warlords	B-Protocol
of	I-Protocol
Draenor	I-Protocol
introduced	O
the	O
planet	O
of	O
Draenor	O
,	O
a	O
version	O
of	O
Outland	O
in	O
a	O
different	O
timeline	O
before	O
its	O
partial	O
destruction	O
.	O
</s>
<s>
The	O
Legion	B-Protocol
expansion	O
took	O
adventurers	O
to	O
the	O
Broken	O
Isles	O
,	O
an	O
island	O
chain	O
near	O
the	O
Maelstrom	O
in	O
the	O
middle	O
of	O
the	O
Great	O
Sea	O
,	O
and	O
the	O
damaged	O
planet	O
Argus	O
,	O
the	O
headquarters	O
of	O
the	O
Burning	O
Legion	B-Protocol
.	O
</s>
<s>
The	O
seventh	O
expansion	O
,	O
Battle	B-Protocol
for	I-Protocol
Azeroth	I-Protocol
,	O
added	O
two	O
new	O
island	O
continents	O
to	O
the	O
center	O
of	O
Azeroth	O
:	O
Kul	O
Tiras	O
and	O
Zandalar	O
.	O
</s>
<s>
The	O
latest	O
expansion	O
,	O
Shadowlands	B-Protocol
,	O
introduced	O
the	O
eponymous	O
Shadowlands	B-Protocol
,	O
a	O
realm	O
composed	O
of	O
five	O
major	O
zones	O
:	O
Bastion	O
,	O
Maldraxxus	O
,	O
Ardenweald	O
,	O
Revendreth	O
,	O
and	O
the	O
Maw	O
.	O
</s>
<s>
Among	O
the	O
newer	O
features	O
added	O
is	O
a	O
pet	O
battle	O
system	O
akin	O
to	O
Pokémon	B-Application
,	O
where	O
players	O
can	O
collect	O
pets	O
all	O
over	O
the	O
game	O
world	O
and	O
battle	O
with	O
them	O
and	O
garrisons	O
,	O
which	O
is	O
a	O
player-controlled	O
area	O
where	O
players	O
recruit	O
non-player	O
characters	O
(	O
NPC	O
)	O
to	O
carry	O
out	O
quests	O
to	O
earn	O
players	O
or	O
the	O
NPCs	O
items	O
.	O
</s>
<s>
Players	O
can	O
also	O
modify	O
their	O
in-game	O
experience	O
through	O
the	O
use	O
of	O
third-party	O
modifications	O
such	O
as	O
macros	O
and	O
add-ons	B-Application
.	O
</s>
<s>
Any	O
software	O
that	O
can	O
modify	O
game	O
mechanics	O
(	O
such	O
as	O
Glider	B-Protocol
)	O
is	O
against	O
the	O
terms	O
of	O
use	O
.	O
</s>
<s>
The	O
draenei	O
and	O
blood	O
elves	O
were	O
added	O
as	O
part	O
of	O
the	B-Application
Burning	I-Application
Crusade	I-Application
expansion	O
.	O
</s>
<s>
In	O
Mists	B-Application
of	I-Application
Pandaria	I-Application
,	O
the	O
pandaren	O
were	O
added	O
as	O
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
's	O
first	O
ever	O
"	O
neutral	O
"	O
race	O
.	O
</s>
<s>
As	O
of	O
Battle	B-Protocol
for	I-Protocol
Azeroth	I-Protocol
there	O
are	O
ten	O
additional	O
allied	O
races	O
for	O
players	O
to	O
use	O
,	O
which	O
are	O
generally	O
variants	O
of	O
existing	O
races	O
with	O
unique	O
racials	O
and	O
themes	O
.	O
</s>
<s>
The	O
entire	O
appearance	O
of	O
a	O
character	O
(	O
including	O
face	O
,	O
skin	O
tone	O
,	O
gender	O
)	O
can	O
be	O
changed	O
via	O
Blizzard	O
's	O
paid	O
character	O
re-customization	O
service	O
-	O
however	O
,	O
this	O
changed	O
in	O
the	O
Shadowlands	B-Protocol
expansion	O
which	O
completely	O
removed	O
the	O
paid	O
re-costumization	O
service	O
and	O
incorporates	O
it	O
into	O
the	O
barbershops	O
for	O
free	O
.	O
</s>
<s>
The	O
mechanics	O
of	O
each	O
class	O
vary	O
,	O
with	O
some	O
geared	O
towards	O
melee	B-Application
combat	O
,	O
while	O
others	O
are	O
more	O
suited	O
to	O
attacking	O
from	O
range	O
or	O
casting	O
spells	O
.	O
</s>
<s>
Currently	O
available	O
classes	O
are	O
:	O
druids	B-Protocol
,	O
death	O
knight	O
,	O
demon	O
hunters	O
,	O
hunters	O
,	O
mages	O
,	O
monks	O
,	O
paladins	B-Protocol
,	O
priests	O
,	O
rogues	B-Protocol
,	O
shamans	B-Protocol
,	O
warlocks	B-Application
and	O
warriors	B-Protocol
.	O
</s>
<s>
Originally	O
,	O
paladins	B-Protocol
were	O
available	O
only	O
to	O
Alliance	O
races	O
and	O
shamans	B-Protocol
were	O
only	O
available	O
to	O
Horde	O
races	O
,	O
but	O
both	O
classes	O
were	O
made	O
available	O
to	O
both	O
sides	O
in	O
The	B-Application
Burning	I-Application
Crusade	I-Application
.	O
</s>
<s>
The	O
death	O
knight	O
,	O
introduced	O
in	O
Wrath	B-Protocol
of	I-Protocol
the	I-Protocol
Lich	I-Protocol
King	I-Protocol
,	O
is	O
a	O
hero	O
class	O
,	O
with	O
the	O
characters	O
beginning	O
at	O
level	O
55	O
(	O
roughly	O
mid-way	O
to	O
a	O
maximum	O
level	O
)	O
,	O
already	O
equipped	O
with	O
powerful	O
gear	O
.	O
</s>
<s>
Creation	O
of	O
a	O
death	O
knight	O
required	O
the	O
player	O
to	O
already	O
have	O
at	O
least	O
one	O
level	O
55	O
character	O
on	O
their	O
account	O
,	O
since	O
Legion	B-Protocol
this	O
is	O
no	O
longer	O
the	O
case	O
.	O
</s>
<s>
The	O
demon	O
hunter	O
,	O
introduced	O
in	O
Legion	B-Protocol
,	O
is	O
another	O
hero	O
class	O
that	O
requires	O
the	O
player	O
to	O
have	O
a	O
level	O
70	O
character	O
.	O
</s>
<s>
Professions	O
are	O
not	O
directly	O
linked	O
to	O
a	O
character	O
's	O
class	O
(	O
e.g.	O
,	O
warriors	B-Protocol
can	O
be	O
alchemists	O
,	O
mages	O
can	O
be	O
skinners	O
,	O
etc	O
.	O
)	O
.	O
</s>
<s>
In	O
the	B-Application
Burning	I-Application
Crusade	I-Application
expansion	O
,	O
additional	O
profession	O
specialisations	O
were	O
added	O
,	O
allowing	O
a	O
character	O
to	O
gain	O
new	O
restricted	O
techniques	O
such	O
as	O
an	O
alchemist	O
mastering	O
potions	O
,	O
elixirs	O
,	O
or	O
transmutations	O
.	O
</s>
<s>
In	O
a	O
change	O
from	O
the	O
previous	O
Warcraft	B-Application
games	O
produced	O
by	O
Blizzard	O
,	O
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
is	O
a	O
massively	B-Protocol
multiplayer	I-Protocol
online	I-Protocol
role-playing	I-Protocol
game	I-Protocol
(	O
MMORPG	B-Protocol
)	O
where	O
thousands	O
of	O
players	O
can	O
interact	O
with	O
each	O
other	O
.	O
</s>
<s>
In	O
common	O
with	O
many	O
MMORPGs	B-Protocol
,	O
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
requires	O
players	O
to	O
pay	O
for	O
a	O
subscription	O
,	O
usually	O
either	O
by	O
credit	O
card	O
or	O
by	O
buying	O
a	O
card	O
from	O
a	O
retailer	O
to	O
redeem	O
for	O
a	O
predetermined	O
amount	O
of	O
subscription	O
time	O
;	O
in	O
addition	O
,	O
game	O
time	O
may	O
be	O
acquired	O
from	O
using	O
in-game	O
gold	O
to	O
buy	O
a	O
WoW	B-Protocol
Token	O
.	O
</s>
<s>
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
takes	O
place	O
in	O
a	O
3D-representation	O
of	O
the	O
Warcraft	B-Application
universe	O
that	O
players	O
can	O
interact	O
with	O
through	O
their	O
characters	O
.	O
</s>
<s>
The	O
game	O
features	O
five	O
continents	O
on	O
the	O
world	O
of	O
Azeroth	O
,	O
as	O
well	O
as	O
the	O
realm	O
of	O
Outland	O
that	O
was	O
added	O
in	O
the	O
expansion	O
The	B-Application
Burning	I-Application
Crusade	I-Application
.	O
</s>
<s>
Warlords	B-Protocol
Of	I-Protocol
Draenor	I-Protocol
introduced	O
the	O
realm	O
of	O
Draenor	O
,	O
an	O
altered	O
past	O
of	O
Outland	O
.	O
</s>
<s>
The	O
second	O
expansion	O
,	O
Wrath	B-Protocol
of	I-Protocol
the	I-Protocol
Lich	I-Protocol
King	I-Protocol
,	O
added	O
a	O
third	O
continent	O
,	O
Northrend	O
.	O
</s>
<s>
to	O
Azeroth	O
,	O
and	O
in	O
Mists	B-Application
of	I-Application
Pandaria	I-Application
a	O
fourth	O
continent	O
,	O
Pandaria	B-Application
,	O
was	O
added	O
.	O
</s>
<s>
In	O
Legion	B-Protocol
,	O
they	O
introduce	O
the	O
Broken	O
Isles	O
.	O
</s>
<s>
With	O
the	O
Battle	B-Protocol
for	I-Protocol
Azeroth	I-Protocol
expansion	O
came	O
2	O
new	O
continents	O
,	O
Kul	O
Tiras	O
(	O
mainly	O
for	O
Alliance	O
)	O
and	O
Zandalar	O
(	O
mainly	O
for	O
the	O
Horde	O
)	O
.	O
</s>
<s>
An	O
addition	O
in	O
the	B-Application
Burning	I-Application
Crusade	I-Application
expansion	O
was	O
the	O
concept	O
of	O
guild	O
banks	O
,	O
allowing	O
members	O
of	O
the	O
same	O
guild	O
to	O
contribute	O
items	O
,	O
resources	O
and	O
in-game	O
currency	O
to	O
a	O
central	O
pool	O
.	O
</s>
<s>
In	O
the	O
major	O
cities	O
of	O
Azeroth	O
,	O
'	O
Auction	O
Houses	O
 '	O
also	O
exist	O
as	O
a	O
way	O
for	O
characters	O
to	O
sell	O
items	O
to	O
others	O
in	O
a	O
similar	O
way	O
to	O
online	O
auction	O
sites	O
such	O
as	O
eBay	B-Application
.	I-Application
</s>
<s>
Seasonal	O
events	O
that	O
reflect	O
on	O
real	O
world	O
events	O
such	O
as	O
Oktoberfest	O
(	O
as	O
Brewfest	O
)	O
,	O
Halloween	B-Application
(	O
as	O
Hallow	O
's	O
End	O
)	O
,	O
Christmas	O
(	O
as	O
Winter	O
Veil	O
)	O
,	O
Children	O
's	O
Week	O
,	O
Easter	O
(	O
as	O
Noblegarden	O
)	O
and	O
Midsummer	O
run	O
for	O
a	O
period	O
of	O
a	O
day	O
or	O
two	O
up	O
to	O
several	O
weeks	O
.	O
</s>
<s>
A	O
large	O
amount	O
of	O
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
revolves	O
around	O
questing	O
.	O
</s>
<s>
A	O
unique	O
aspect	O
of	O
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
is	O
the	O
use	O
of	O
a	O
"	O
rested	O
bonus	O
"	O
system	O
,	O
increasing	O
the	O
rate	O
that	O
a	O
character	O
can	O
gain	O
experience	O
points	O
after	O
the	O
player	O
has	O
spent	O
time	O
away	O
from	O
the	O
game	O
.	O
</s>
<s>
Some	O
of	O
the	O
harder	O
challenges	O
in	O
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
require	O
players	O
to	O
group	O
together	O
to	O
defeat	O
them	O
.	O
</s>
<s>
In	O
the	B-Application
Burning	I-Application
Crusade	I-Application
and	O
later	O
expansions	O
the	O
most	O
common	O
group	O
sizes	O
are	O
ten	O
and	O
twenty-five	O
,	O
based	O
on	O
the	O
idea	O
that	O
these	O
groups	O
would	O
be	O
easier	O
to	O
fill	O
and	O
coordinate	O
.	O
</s>
<s>
As	O
of	O
Mists	B-Application
of	I-Application
Pandaria	I-Application
(	O
MoP	O
)	O
,	O
there	O
are	O
the	O
dungeons	O
,	O
scenarios	O
,	O
raids	O
,	O
battlegrounds	B-Protocol
and	O
arenas	O
that	O
fall	O
under	O
this	O
category	O
.	O
</s>
<s>
In	O
Warlords	B-Protocol
of	I-Protocol
Draenor	I-Protocol
(	O
WoD	O
)	O
,	O
Mythic	O
versions	O
of	O
dungeons	O
were	O
added	O
that	O
increase	O
the	O
rewards	O
and	O
difficulty	O
more	O
than	O
in	O
heroic	O
.	O
</s>
<s>
All	O
WoD	O
and	O
Legion	B-Protocol
raids	O
include	O
a	O
Mythic	O
version	O
.	O
</s>
<s>
-	O
Battlegrounds	B-Protocol
(	O
BG	O
)	O
and	O
rated	O
BGs	O
are	O
small	O
zoned	O
instances	O
that	O
require	O
players	O
to	O
engage	O
a	O
team	O
of	O
an	O
equal	O
number	O
of	O
the	O
opposing	O
faction	O
in	O
order	O
to	O
secure	O
territory	O
within	O
the	O
zone	O
( à	O
la	O
"	O
capture	O
the	O
flag	O
)	O
,	O
score	O
resources	O
or	O
simply	O
outwit	O
the	O
opposing	O
team	O
.	O
</s>
<s>
-	O
Proving	O
Grounds	O
are	O
single	O
player	O
scenarios	O
that	O
test	O
a	O
player	O
's	O
ability	O
in	O
either	O
the	O
damage	O
,	O
tanking	B-Protocol
or	O
healing	O
role	O
.	O
</s>
<s>
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
contains	O
a	O
variety	O
of	O
mechanisms	O
for	O
this	O
.	O
</s>
<s>
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
also	O
makes	O
use	O
of	O
battlegrounds	B-Protocol
.	O
</s>
<s>
This	O
was	O
changed	O
following	O
the	O
release	O
of	O
the	B-Application
Burning	I-Application
Crusade	I-Application
expansion	O
so	O
that	O
equipment	O
became	O
available	O
to	O
all	O
,	O
with	O
Honor	O
Points	O
being	O
used	O
to	O
exchange	O
for	O
pieces	O
of	O
equipment	O
.	O
</s>
<s>
In	O
Legion	B-Protocol
instead	O
of	O
Honor	O
Points	O
for	O
gear	O
the	O
player	O
is	O
given	O
a	O
box	O
that	O
possibly	O
contains	O
gear	O
and	O
artifact	O
power	O
.	O
</s>
<s>
Arenas	O
are	O
a	O
further	O
development	O
for	O
player	O
versus	O
player	O
that	O
were	O
added	O
in	O
the	B-Application
Burning	I-Application
Crusade	I-Application
expansion	O
.	O
</s>
<s>
Successful	O
arena	O
teams	O
can	O
use	O
these	O
points	O
to	O
buy	O
armor	O
and	O
weapons	O
of	O
a	O
higher	O
quality	O
than	O
those	O
available	O
from	O
battlegrounds	B-Protocol
.	O
</s>
<s>
In	O
the	B-Protocol
Wrath	I-Protocol
of	I-Protocol
the	I-Protocol
Lich	I-Protocol
King	I-Protocol
expansion	O
,	O
a	O
new	O
player	O
versus	O
player	O
zone	O
was	O
introduced	O
called	O
Wintergrasp	O
.	O
</s>
<s>
In	O
Legion	B-Protocol
there	O
were	O
a	O
number	O
of	O
changes	O
to	O
the	O
PvP	O
aspects	O
of	O
the	O
game	O
.	O
</s>
<s>
A	O
number	O
of	O
features	O
have	O
been	O
added	O
to	O
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
,	O
either	O
prior	O
to	O
the	O
original	O
release	O
or	O
in	O
one	O
of	O
the	O
following	O
content	O
updates	O
.	O
</s>
<s>
From	O
early	O
in	O
the	O
game	O
's	O
development	O
,	O
Blizzard	O
has	O
allowed	O
players	O
to	O
customize	O
their	O
game	O
interface	O
through	O
the	O
use	O
of	O
modifications	O
,	O
also	O
known	O
as	O
mods	O
or	O
add-ons	B-Application
.	O
</s>
<s>
Mods	O
are	O
developed	O
using	O
the	O
Lua	B-Language
and	O
XML	B-Protocol
scripting	O
languages	O
,	O
while	O
images	O
and	O
models	O
use	O
the	O
Targa	O
and	O
BLP	O
image	O
formats	O
.	O
</s>
<s>
Some	O
programs	O
that	O
operate	O
alongside	O
World	B-Protocol
of	I-Protocol
Warcraft	I-Protocol
,	O
typically	O
to	O
automate	O
repetitive	O
tasks	O
and	O
allow	O
the	O
game	O
to	O
be	O
played	O
without	O
input	O
from	O
the	O
player	O
,	O
are	O
against	O
the	O
game	O
's	O
terms	O
of	O
use	O
.	O
</s>
