<s>
Downloadable	B-Protocol
content	I-Protocol
(	O
DLC	B-Protocol
)	O
is	O
additional	O
content	O
created	O
for	O
an	O
already	O
released	O
video	O
game	O
,	O
distributed	O
through	O
the	O
Internet	O
by	O
the	O
game	O
's	O
publisher	O
.	O
</s>
<s>
DLC	B-Protocol
can	O
range	O
from	O
cosmetic	O
content	O
,	O
such	O
as	O
skins	O
,	O
to	O
new	O
in-game	O
content	O
such	O
as	O
characters	O
,	O
levels	O
,	O
modes	O
,	O
and	O
larger	O
expansions	O
that	O
may	O
contain	O
a	O
mix	O
of	O
such	O
content	O
as	O
a	O
continuation	O
of	O
the	O
base	O
game	O
.	O
</s>
<s>
In	O
some	O
games	O
,	O
multiple	O
DLC	B-Protocol
(	O
including	O
future	O
DLC	B-Protocol
not	O
yet	O
released	O
)	O
may	O
be	O
bundled	O
as	O
part	O
of	O
a	O
"	O
season	O
pass	O
"	O
—	O
typically	O
at	O
a	O
discount	O
in	O
comparison	O
to	O
purchasing	O
each	O
DLC	B-Protocol
individually	O
.	O
</s>
<s>
While	O
the	B-Operating_System
Dreamcast	I-Operating_System
was	O
the	O
first	O
home	O
console	O
to	O
support	O
DLC	B-Protocol
(	O
albeit	O
in	O
a	O
limited	O
form	O
due	O
to	O
hardware	O
and	O
internet	O
connection	O
limitations	O
)	O
,	O
Microsoft	O
's	O
Xbox	B-Application
console	I-Application
and	O
Xbox	B-Application
Live	I-Application
platform	O
helped	O
to	O
popularize	O
the	O
concept	O
.	O
</s>
<s>
Since	O
the	O
seventh	B-Application
generation	I-Application
of	I-Application
video	I-Application
game	I-Application
consoles	I-Application
,	O
DLC	B-Protocol
has	O
been	O
a	O
prevalent	O
feature	O
of	O
most	O
major	O
video	O
game	O
platforms	O
with	O
internet	O
connectivity	O
.	O
</s>
<s>
Since	O
the	O
popularization	O
of	O
microtransactions	O
in	O
online	O
distribution	O
platforms	O
such	O
as	O
Steam	B-Application
,	O
the	O
term	O
DLC	B-Protocol
has	O
become	O
a	O
synonymous	O
for	O
any	O
form	O
of	O
paid	O
content	O
in	O
video	O
games	O
,	O
regardless	O
of	O
whether	O
they	O
constitute	O
the	O
download	O
of	O
new	O
content	O
.	O
</s>
<s>
Furthermore	O
,	O
this	O
led	O
to	O
the	O
creation	O
of	O
the	O
oxymoronic	O
term	O
"	O
on-disc	O
DLC	B-Protocol
"	O
for	O
content	O
included	O
on	O
the	O
game	O
's	O
original	O
files	O
,	O
but	O
locked	O
behind	O
a	O
paywall	O
.	O
</s>
<s>
The	O
earliest	O
form	O
of	O
downloadable	B-Protocol
content	I-Protocol
were	O
offerings	O
of	O
full	O
games	O
,	O
such	O
as	O
on	O
the	O
Atari	O
2600	O
's	O
GameLine	B-Application
service	O
,	O
which	O
allowed	O
users	O
to	O
download	O
games	O
using	O
a	O
telephone	O
line	O
.	O
</s>
<s>
A	O
similar	O
service	O
,	O
Sega	B-Application
Channel	I-Application
,	O
allowed	O
for	O
the	O
downloading	O
of	O
games	O
to	O
the	O
Sega	B-Operating_System
Genesis	I-Operating_System
over	O
a	O
cable	O
line	O
.	O
</s>
<s>
While	O
the	O
GameLine	B-Application
and	O
Sega	B-Application
Channel	I-Application
services	O
allowed	O
for	O
the	O
distribution	O
of	O
entire	O
titles	O
,	O
they	O
did	O
not	O
provide	O
downloadable	B-Protocol
content	I-Protocol
for	O
existing	O
titles	O
.	O
</s>
<s>
They	O
often	O
required	O
an	O
installation	O
of	O
the	O
original	O
game	O
in	O
order	O
to	O
function	O
,	O
but	O
some	O
games	O
(	O
such	O
as	O
Half-Life	B-Application
)	O
had	O
"	O
standalone	O
"	O
expansions	O
,	O
which	O
were	O
essentially	O
spin-off	O
games	O
that	O
reused	O
engine	O
code	O
and	O
assets	O
from	O
the	O
original	O
game	O
.	O
</s>
<s>
The	B-Operating_System
Dreamcast	I-Operating_System
was	O
the	O
first	O
console	O
to	O
feature	O
online	O
support	O
as	O
a	O
standard	O
;	O
DLC	B-Protocol
was	O
available	O
,	O
though	O
limited	O
in	O
size	O
due	O
to	O
the	O
narrowband	O
connection	O
and	O
the	O
size	O
limitations	O
of	O
a	O
memory	O
card	O
.	O
</s>
<s>
These	O
online	O
features	O
were	O
still	O
considered	O
a	O
breakthrough	O
in	O
video	O
games	O
,	O
but	O
the	O
competing	O
PlayStation	B-Device
2	I-Device
did	O
not	O
ship	O
with	O
a	O
built-in	O
network	O
adapter	O
.	O
</s>
<s>
With	O
the	O
advent	O
of	O
the	O
Xbox	B-Operating_System
,	O
Microsoft	O
was	O
the	O
second	O
company	O
to	O
implement	O
downloadable	B-Protocol
content	I-Protocol
.	O
</s>
<s>
Many	O
original	B-Application
Xbox	I-Application
Live	I-Application
titles	O
,	O
including	O
Splinter	O
Cell	O
,	O
Halo	B-Application
2	I-Application
,	O
and	O
Ninja	B-Application
Gaiden	I-Application
,	O
offered	O
varying	O
amounts	O
of	O
extra	O
content	O
,	O
available	O
for	O
download	O
through	O
the	O
Xbox	B-Application
Live	I-Application
service	O
.	O
</s>
<s>
The	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
(	O
2005	O
)	O
included	O
more	O
robust	O
support	O
for	O
digital	O
distribution	O
,	O
including	O
DLC	B-Protocol
downloads	O
and	O
purchases	O
,	O
via	O
its	O
Xbox	B-Application
Live	I-Application
Marketplace	O
service	O
.	O
</s>
<s>
Microsoft	O
also	O
utilized	O
a	O
digital	O
currency	O
known	O
as	O
"	O
Microsoft	B-Device
Points	I-Device
"	O
for	O
transactions	O
,	O
which	O
could	O
also	O
be	O
purchased	O
through	O
physical	O
gift	O
cards	O
to	O
avoid	O
the	O
banking	O
fees	O
associated	O
with	O
the	O
small	O
price	O
points	O
.	O
</s>
<s>
Sony	O
adopted	O
the	O
same	O
approach	O
with	O
their	O
downloadable	O
hub	O
,	O
the	O
PlayStation	B-Device
Store	I-Device
.	O
</s>
<s>
With	O
Gran	B-Application
Turismo	I-Application
HD	I-Application
Concept	I-Application
,	O
Sony	O
planned	O
on	O
having	O
the	O
bulk	O
of	O
its	O
content	O
be	O
purchased	O
separately	O
via	O
many	O
separate	O
online	O
microtransactions	O
.	O
</s>
<s>
The	O
project	O
was	O
later	O
canceled	O
in	O
favor	O
of	O
the	O
full	O
Gran	B-Application
Turismo	I-Application
5	I-Application
.	O
</s>
<s>
Nintendo	O
has	O
featured	O
a	O
sparser	O
amount	O
of	O
downloadable	B-Protocol
content	I-Protocol
on	O
their	O
Wii	B-Application
Shop	I-Application
Channel	I-Application
,	O
the	O
bulk	O
of	O
which	O
is	O
accounted	O
for	O
by	O
digital	O
distribution	O
of	O
emulated	O
Nintendo	O
titles	O
from	O
previous	B-Device
generations	I-Device
.	O
</s>
<s>
Music	B-Application
video	I-Application
games	I-Application
,	O
such	O
as	O
titles	O
from	O
the	O
Guitar	B-Application
Hero	I-Application
and	O
Rock	B-Application
Band	I-Application
franchises	O
,	O
took	O
significant	O
advantage	O
of	O
downloadable	B-Protocol
content	I-Protocol
as	O
a	O
means	O
of	O
offering	O
new	O
songs	O
to	O
be	O
played	O
in-game	O
.	O
</s>
<s>
Harmonix	O
claimed	O
that	O
Guitar	B-Application
Hero	I-Application
II	O
would	O
feature	O
"	O
more	O
online	O
content	O
than	O
anyone	O
has	O
ever	O
seen	O
in	O
a	O
game	O
to	O
this	O
date.	O
"	O
</s>
<s>
Rock	B-Application
Band	I-Application
features	O
the	O
largest	O
number	O
of	O
downloadable	O
items	O
of	O
any	O
console	O
video	O
game	O
,	O
with	O
a	O
steady	O
number	O
of	O
new	O
songs	O
that	O
were	O
added	O
weekly	O
between	O
2007	O
and	O
2013	O
.	O
</s>
<s>
Acquiring	O
all	O
the	O
downloadable	B-Protocol
content	I-Protocol
for	O
Rock	B-Application
Band	I-Application
would	O
,	O
as	O
of	O
July	O
12	O
,	O
2012	O
,	O
cost	O
$	O
9,150	O
.10	O
.	O
</s>
<s>
In	O
1997	O
,	O
Cavedog	O
offered	O
a	O
new	O
unit	O
every	O
month	O
as	O
free	O
downloadable	B-Protocol
content	I-Protocol
for	O
their	O
real-time	O
strategy	O
computer	O
game	O
Total	B-Application
Annihilation	I-Application
.	O
</s>
<s>
Later	O
PC	O
digital	O
distribution	O
platforms	O
,	O
such	O
as	O
Games	O
for	O
Windows	O
Marketplace	O
and	O
Steam	B-Application
would	O
add	O
support	O
for	O
DLC	B-Protocol
in	O
a	O
similar	O
manner	O
to	O
consoles	O
.	O
</s>
<s>
With	O
the	O
introduction	O
of	O
WAP	B-Protocol
in	O
2000	O
,	O
additional	O
downloadable	B-Protocol
content	I-Protocol
for	O
the	O
game	O
,	O
with	O
extra	O
levels	O
,	O
became	O
available	O
.	O
</s>
<s>
The	O
Nintendo	B-Application
Wi-Fi	I-Application
Connection	I-Application
service	O
on	O
the	O
Nintendo	B-Device
DS	I-Device
could	O
be	O
used	O
to	O
obtain	O
a	O
form	O
of	O
DLC	B-Protocol
for	O
certain	O
games	O
,	O
such	O
as	O
Picross	B-Device
DS	I-Device
—	O
where	O
players	O
could	O
download	O
puzzle	O
"	O
packs	O
"	O
of	O
classic	O
puzzles	O
from	O
previous	O
Picross	O
games	O
(	O
such	O
as	O
Mario	B-Application
's	I-Application
Picross	I-Application
)	O
.	O
</s>
<s>
Due	O
to	O
the	O
Nintendo	B-Device
DS	I-Device
's	O
use	O
of	O
cartridges	O
and	O
lack	O
of	O
dedicated	O
storage	O
,	O
most	O
"	O
DLC	B-Protocol
"	O
for	O
DS	B-Device
games	O
was	O
limited	O
in	O
scope	O
,	O
or	O
in	O
some	O
cases	O
(	O
such	O
as	O
Professor	B-Application
Layton	I-Application
and	I-Application
the	I-Application
Curious	I-Application
Village	I-Application
)	O
,	O
was	O
already	O
part	O
of	O
the	O
game	O
's	O
data	O
on	O
the	O
cartridge	O
,	O
and	O
merely	O
unlocked	O
.	O
</s>
<s>
The	O
Nintendo	B-Operating_System
3DS	I-Operating_System
supports	O
the	O
purchase	O
of	O
DLC	B-Protocol
for	O
supported	O
titles	O
for	O
Nintendo	B-Application
eShop	I-Application
.	O
</s>
<s>
Starting	O
with	O
iOS	B-Operating_System
3	I-Operating_System
,	O
downloadable	B-Protocol
content	I-Protocol
became	O
available	O
for	O
the	O
platform	O
via	O
applications	O
bought	O
from	O
the	O
App	B-Application
Store	I-Application
.	O
</s>
<s>
In	O
some	O
cases	O
,	O
a	O
purchased	O
DLC	B-Protocol
may	O
not	O
actually	O
download	O
new	O
content	O
to	O
the	O
device	O
,	O
but	O
merely	O
consists	O
of	O
data	O
used	O
to	O
enable	O
associated	O
content	O
that	O
is	O
already	O
present	O
within	O
the	O
game	O
's	O
data	O
.	O
</s>
<s>
DLC	B-Protocol
of	O
this	O
nature	O
revealed	O
via	O
data	B-Application
mining	I-Application
is	O
typically	O
referred	O
to	O
as	O
"	O
on-disc	O
DLC	B-Protocol
"	O
or	O
PULC	O
(	O
premium	O
unlockable	O
content	O
)	O
.	O
</s>
<s>
Data	O
relating	O
to	O
future	O
DLC	B-Protocol
may	O
be	O
included	O
on-disc	O
or	O
downloaded	O
during	O
updates	O
for	O
technical	O
reasons	O
as	O
well	O
,	O
either	O
to	O
ensure	O
online	O
multiplayer	O
compatibility	O
for	O
existing	O
content	O
between	O
players	O
who	O
have	O
not	O
yet	O
purchased	O
the	O
new	O
DLC	B-Protocol
,	O
or	O
as	O
dormant	O
support	O
code	O
for	O
planned	O
content	O
that	O
is	O
still	O
in	O
development	O
at	O
the	O
time	O
of	O
the	O
release	O
.	O
</s>
<s>
Downloadable	B-Protocol
content	I-Protocol
is	O
often	O
offered	O
for	O
a	O
price	O
.	O
</s>
<s>
Since	O
Facebook	B-Application
games	O
popularized	O
the	O
business	O
model	O
of	O
microtransactions	O
,	O
some	O
have	O
criticized	O
downloadable	B-Protocol
content	I-Protocol
as	O
being	O
overpriced	O
and	O
an	O
incentive	O
for	O
developers	O
to	O
leave	O
items	O
out	O
of	O
the	O
initial	O
release	O
,	O
with	O
The	B-Application
Elder	I-Application
Scrolls	I-Application
IV	I-Application
:	I-Application
Oblivion	I-Application
's	O
"	O
horse	O
armor	O
"	O
DLC	B-Protocol
having	O
faced	O
a	O
mixed	O
reception	O
upon	O
its	O
release	O
for	O
that	O
reason	O
.	O
</s>
<s>
However	O
,	O
by	O
2009	O
,	O
the	O
Horse	O
Armor	O
DLC	B-Protocol
was	O
one	O
of	O
the	O
top	O
ten	O
content	O
packs	O
that	O
Bethesda	O
had	O
sold	O
,	O
which	O
justified	O
the	O
DLC	B-Protocol
model	O
for	O
future	O
games	O
.	O
</s>
<s>
Where	O
a	O
normal	O
software	O
disc	O
may	O
allow	O
its	O
license	O
sold	O
or	O
traded	O
,	O
DLC	B-Protocol
is	O
generally	O
locked	O
to	O
a	O
specific	O
user	O
's	O
account	O
and	O
does	O
not	O
come	O
with	O
the	O
ability	O
to	O
transfer	O
that	O
license	O
to	O
another	O
user	O
.	O
</s>
<s>
Epic	O
Games	O
,	O
known	O
for	O
continual	O
support	O
of	O
their	O
older	O
titles	O
with	O
downloadable	O
updates	O
,	O
believed	O
that	O
releasing	O
downloadable	B-Protocol
content	I-Protocol
over	O
the	O
course	O
of	O
a	O
game	O
's	O
lifetime	O
helped	O
increase	O
sales	O
throughout	O
,	O
and	O
had	O
succeeded	O
well	O
with	O
that	O
business-model	O
in	O
the	O
past	O
,	O
but	O
was	O
required	O
to	O
implement	O
fees	O
for	O
downloads	O
when	O
releasing	O
content	O
for	O
their	O
Microsoft-published	O
game	O
,	O
Gears	B-Application
of	I-Application
War	I-Application
.	O
</s>
<s>
As	O
of	O
2010	O
the	O
sale	O
of	O
DLC	B-Protocol
makes	O
up	O
around	O
20%	O
of	O
video	O
games	O
sales	O
,	O
a	O
substantial	O
portion	O
of	O
a	O
developer	O
's	O
profit	O
margin	O
.	O
</s>
<s>
Developers	O
are	O
beginning	O
to	O
use	O
the	O
sale	O
of	O
DLC	B-Protocol
for	O
an	O
already	O
successful	O
game	O
series	O
to	O
fund	O
the	O
development	O
of	O
new	O
IPs	O
or	O
sequels	O
to	O
existing	O
games	O
.	O
</s>
<s>
DLC	B-Protocol
is	O
usually	O
distributed	O
through	O
a	O
console	O
platform	O
's	O
online	O
storefront	O
,	O
such	O
as	O
Microsoft	B-Application
Store	I-Application
,	O
Nintendo	B-Application
eShop	I-Application
,	O
PlayStation	B-Device
Store	I-Device
,	O
or	O
similar	O
storefronts	O
for	O
PC	O
games	O
such	O
as	O
Steam	B-Application
.	O
</s>
<s>
Platform	O
exclusivity	O
can	O
also	O
apply	O
to	O
DLC	B-Protocol
,	O
with	O
Activision	O
having	O
reserved	O
a	O
timed	O
exclusivity	O
period	O
for	O
DLC	B-Protocol
in	O
the	O
Call	B-Application
of	I-Application
Duty	I-Application
franchise	O
to	O
PlayStation	O
consoles	O
.	O
</s>
<s>
Some	O
time	O
after	O
a	O
game	O
's	O
original	O
release	O
,	O
a	O
publisher	O
may	O
reissue	O
the	O
game	O
at	O
retail	O
with	O
all	O
of	O
its	O
existing	O
DLC	B-Protocol
included	O
at	O
no	O
additional	O
charge	O
and	O
,	O
in	O
some	O
cases	O
,	O
exclusive	O
content	O
which	O
may	O
be	O
released	O
as	O
DLC	B-Protocol
for	O
existing	O
owners	O
in	O
the	O
future	O
.	O
</s>
<s>
Destiny	B-Application
was	O
reissued	O
twice	O
to	O
coincide	O
with	O
its	O
"	O
Year	O
2	O
"	O
and	O
"	O
Year	O
3	O
"	O
milestones	O
and	O
associated	O
DLC	B-Protocol
expansions	O
The	B-Application
Taken	I-Application
King	I-Application
and	O
Rise	B-Application
of	I-Application
Iron	I-Application
;	O
a	O
compilation	O
of	O
the	O
game	O
's	O
existing	O
DLC	B-Protocol
and	O
The	B-Application
Taken	I-Application
King	I-Application
was	O
released	O
in	O
2015	O
under	O
the	O
title	O
Destiny	B-Application
:	I-Application
The	I-Application
Taken	I-Application
King	I-Application
-	O
Legendary	O
Edition	O
,	O
while	O
the	O
game	O
was	O
re-issued	O
again	O
in	O
2016	O
as	O
Destiny	B-Application
:	O
The	O
Collection	O
to	O
add	O
Rise	B-Application
of	I-Application
Iron	I-Application
.	O
</s>
<s>
There	O
have	O
also	O
been	O
cases	O
where	O
DLCs	B-Protocol
were	O
intended	O
to	O
be	O
part	O
of	O
the	O
main	O
game	O
,	O
but	O
they	O
were	O
later	O
stripped	O
out	O
of	O
it	O
in	O
order	O
to	O
be	O
sold	O
as	O
a	O
separate	O
feature	O
.	O
</s>
<s>
Tomb	B-Application
Raider	I-Application
:	I-Application
Underworld	I-Application
has	O
been	O
criticized	O
for	O
providing	O
two	O
DLCs	B-Protocol
,	O
exclusive	O
to	O
the	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
,	O
that	O
were	O
supposedly	O
removed	O
from	O
the	O
original	O
game	O
.	O
</s>
<s>
The	B-Application
Sims	I-Application
4	I-Application
:	O
My	O
First	O
Pet	O
was	O
likewise	O
criticised	O
for	O
containing	O
items	O
that	O
had	O
seemingly	O
been	O
removed	O
from	O
the	O
Cats	B-Application
&	I-Application
Dogs	I-Application
expansion	O
,	O
with	O
the	O
DLC	B-Protocol
requiring	O
the	O
downloadable	O
expansion	O
pack	O
in	O
order	O
to	O
work	O
.	O
</s>
<s>
While	O
video	O
games	O
are	O
the	O
origins	O
of	O
downloadable	B-Protocol
content	I-Protocol
,	O
with	O
movies	O
,	O
books	O
and	O
music	O
also	O
becoming	O
more	O
popular	O
in	O
the	O
digital	O
sphere	O
,	O
experimental	O
DLC	B-Protocol
has	O
also	O
been	O
attempted	O
.	O
</s>
