<s>
Deus	B-Application
Ex	I-Application
:	I-Application
Human	I-Application
Revolution	I-Application
–	I-Application
The	I-Application
Missing	I-Application
Link	I-Application
is	O
a	O
standalone	O
downloadable	B-Protocol
episode	O
for	O
the	O
action	B-Application
role-playing	I-Application
stealth	O
video	O
game	O
Deus	B-Application
Ex	I-Application
:	I-Application
Human	I-Application
Revolution	I-Application
.	O
</s>
<s>
Developed	O
by	O
Eidos	O
Montréal	O
and	O
published	O
by	O
Square	O
Enix	O
,	O
it	O
was	O
released	O
digitally	O
worldwide	O
in	O
October	O
2011	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
PlayStation	B-Operating_System
3	I-Operating_System
,	O
Xbox	B-Operating_System
360	I-Operating_System
.	O
</s>
<s>
Later	O
releases	O
of	O
the	O
main	O
game	O
made	O
The	O
Missing	O
Link	O
available	O
on	O
OS	B-Operating_System
X	I-Operating_System
and	O
Wii	B-Device
U	I-Device
.	O
</s>
<s>
Deus	B-Application
Ex	I-Application
:	I-Application
Human	I-Application
Revolution	I-Application
–	I-Application
The	I-Application
Missing	I-Application
Link	I-Application
is	O
a	O
downloadable	B-Protocol
episode	O
,	O
acting	O
as	O
a	O
side	O
story	O
within	O
the	O
events	O
of	O
Deus	B-Application
Ex	I-Application
:	I-Application
Human	I-Application
Revolution	I-Application
.	O
</s>
<s>
Like	O
the	O
main	O
game	O
,	O
The	O
Missing	O
Link	O
is	O
played	O
from	O
a	O
first-person	O
perspective	O
,	O
using	O
action	B-Application
role-playing	I-Application
and	O
stealth	O
gameplay	O
elements	O
.	O
</s>
<s>
Disillusioned	O
with	O
the	O
unethical	O
nature	O
of	O
local	O
Belltower	O
operations	O
,	O
she	O
wants	O
Adam	O
to	O
find	O
concrete	O
proof	O
of	O
illegal	O
research	O
that	O
she	O
can	O
use	O
to	O
deliver	O
to	O
Interpol	B-Device
.	O
</s>
<s>
After	O
talking	O
to	O
one	O
of	O
the	O
prisoners	O
,	O
Nina	O
Sullivan	O
,	O
and	O
overhearing	O
a	O
conversation	O
between	O
Burke	O
and	O
two	O
of	O
the	O
scientists	O
,	O
Gary	O
Savage	O
and	O
Tiffany	O
Kavanagh	O
,	O
he	O
confirms	O
that	O
innocents	O
are	O
kidnapped	O
across	O
the	O
globe	O
to	O
further	O
the	O
Illuminati	B-Device
research	O
that	O
Jensen	O
is	O
investigating	O
,	O
and	O
that	O
the	O
experiments	O
prove	O
fatal	O
to	O
the	O
majority	O
of	O
subjects	O
.	O
</s>
<s>
He	O
then	O
reveals	O
himself	O
as	O
both	O
"	O
Quinn	O
"	O
and	O
Keitner	O
's	O
Interpol	B-Device
contact	O
.	O
</s>
<s>
He	O
explained	O
that	O
he	O
was	O
withholding	O
the	O
truth	O
from	O
both	O
Jensen	O
and	O
Keitner	O
to	O
use	O
them	O
as	O
pawns	O
against	O
Belltower	O
,	O
and	O
by	O
extension	O
,	O
the	O
Illuminati	B-Device
.	O
</s>
<s>
The	O
pod	O
is	O
delivered	O
via	O
helicopter	O
onto	O
the	O
departing	O
ship	O
,	O
while	O
Quinn	O
contacts	O
the	O
mysterious	O
hacker	O
"	O
Janus	O
"	O
,	O
informing	O
him	O
of	O
the	O
success	O
of	O
the	O
operation	O
and	O
debating	O
Adam	O
's	O
future	O
potential	O
in	O
combating	O
the	O
Illuminati	B-Device
.	O
</s>
<s>
Downloadable	B-Protocol
content	I-Protocol
(	O
DLC	B-Protocol
)	O
was	O
initially	O
not	O
part	O
of	O
the	O
development	O
team	O
's	O
plans	O
.	O
</s>
<s>
Only	O
the	O
core	O
developers	O
were	O
involved	O
in	O
creating	O
The	O
Missing	O
Link	O
,	O
though	O
development	O
on	O
the	O
DLC	B-Protocol
did	O
not	O
take	O
a	O
high	O
priority	O
for	O
some	O
time	O
as	O
it	O
would	O
take	O
resources	O
away	O
from	O
the	O
development	O
of	O
Human	O
Revolution	O
.	O
</s>
<s>
He	O
wanted	O
to	O
include	O
music	O
from	O
the	O
DLC	B-Protocol
in	O
the	O
game	O
's	O
official	O
soundtrack	O
,	O
but	O
recording	O
for	O
the	O
release	O
was	O
already	O
complete	O
,	O
and	O
scheduling	O
conflicts	O
prevented	O
him	O
from	O
including	O
any	O
music	O
in	O
the	O
soundtrack	O
.	O
</s>
<s>
Despite	O
this	O
,	O
he	O
still	O
wished	O
to	O
release	O
the	O
DLC	B-Protocol
soundtrack	O
.	O
</s>
<s>
Full	O
focus	O
shifted	O
onto	O
The	O
Missing	O
Link	O
when	O
development	O
ended	O
on	O
Human	O
Revolution	O
,	O
with	O
the	O
main	O
game	O
's	O
staff	O
bringing	O
their	O
experience	O
to	O
bear	O
upon	O
the	O
DLC	B-Protocol
when	O
building	O
its	O
environments	O
.	O
</s>
<s>
The	O
DLC	B-Protocol
was	O
developed	O
as	O
a	O
stand-alone	O
experience	O
,	O
accessible	O
through	O
the	O
main	O
menu	O
independent	O
of	O
the	O
player	O
's	O
place	O
within	O
the	O
main	O
game	O
.	O
</s>
<s>
Due	O
to	O
the	O
relatively	O
small	O
size	O
of	O
the	O
DLC	B-Protocol
environment	O
,	O
developers	O
did	O
not	O
need	O
to	O
focus	O
on	O
a	O
raised	O
concern	O
in	O
the	O
main	O
game	O
about	O
repeating	O
character	O
faces	O
and	O
voices	O
.	O
</s>
<s>
Plans	O
for	O
a	O
DLC	B-Protocol
were	O
first	O
announced	O
in	O
2010	O
at	O
that	O
year	O
's	O
Gamescom	O
event	O
,	O
where	O
it	O
was	O
stated	O
that	O
it	O
would	O
be	O
an	O
extension	O
to	O
the	O
main	O
narrative	O
.	O
</s>
<s>
It	O
was	O
later	O
teased	O
by	O
Eidos	O
Montréal	O
through	O
cryptic	O
clues	O
on	O
their	O
website	O
,	O
eventually	O
revealing	O
the	O
DLC	B-Protocol
one	O
month	O
after	O
the	O
main	O
game	O
's	O
release	O
.	O
</s>
<s>
The	O
Missing	O
Link	O
was	O
released	O
on	O
October	O
18	O
,	O
2011	O
on	O
Steam	B-Application
for	O
Microsoft	B-Application
Windows	I-Application
personal	B-Device
computers	I-Device
,	O
Xbox	B-Application
Live	I-Application
for	O
Xbox	B-Operating_System
360	I-Operating_System
,	O
and	O
October	O
19	O
on	O
PlayStation	B-Device
Network	I-Device
(	O
PSN	B-Device
)	O
for	O
PlayStation	B-Operating_System
3	I-Operating_System
.	O
</s>
<s>
In	O
Japan	O
,	O
the	O
console	O
versions	O
of	O
the	O
DLC	B-Protocol
were	O
released	O
on	O
March	O
7	O
,	O
2012	O
for	O
PSN	B-Device
and	O
March	O
20	O
for	O
Xbox	B-Application
Live	I-Application
.	O
</s>
<s>
The	O
DLC	B-Protocol
was	O
included	O
as	O
part	O
of	O
Feral	O
Interactive	O
's	O
port	O
for	O
OS	B-Operating_System
X	I-Operating_System
,	O
released	O
on	O
April	O
26	O
,	O
2012	O
.	O
</s>
<s>
The	O
Missing	O
Link	O
was	O
subsequently	O
included	O
with	O
other	O
additional	O
content	O
in	O
the	O
director	O
's	O
cut	O
edition	O
of	O
the	O
base	O
game	O
,	O
released	O
on	O
its	O
original	O
platforms	O
and	O
Wii	B-Device
U	I-Device
.	O
</s>
<s>
The	O
director	O
's	O
cut	O
was	O
released	O
on	O
October	O
25	O
,	O
2013	O
for	O
PC	O
,	O
Xbox	B-Operating_System
360	I-Operating_System
,	O
PS3	B-Operating_System
and	O
Wii	B-Device
U	I-Device
.	O
</s>
<s>
An	O
OS	B-Operating_System
X	I-Operating_System
port	O
,	O
again	O
handled	O
by	O
Feral	O
Interactive	O
,	O
was	O
released	O
on	O
April	O
16	O
,	O
2014	O
.	O
</s>
<s>
Official	O
Xbox	B-Operating_System
Magazines	O
Edwin	O
Evans-Thirlwell	O
found	O
the	O
plot	O
undermined	O
by	O
the	O
villain	O
and	O
some	O
poor	O
dialogue	O
.	O
</s>
<s>
Its	O
standing	O
as	O
DLC	B-Protocol
divided	O
opinions	O
.	O
</s>
<s>
Tan	O
praised	O
its	O
separation	O
from	O
the	O
main	O
game	O
,	O
and	O
called	O
it	O
"	O
a	O
well-produced	O
piece	O
of	O
DLC	B-Protocol
with	O
a	O
level	O
of	O
quality	O
that	O
fits	O
right	O
in	O
with	O
the	O
main	O
game	O
both	O
in	O
terms	O
of	O
quality	O
and	O
atmosphere	O
"	O
.	O
</s>
<s>
MacDonald	O
was	O
more	O
positive	O
,	O
echoing	O
Tan	O
's	O
sentiments	O
of	O
it	O
being	O
a	O
strong	O
piece	O
of	O
DLC	B-Protocol
despite	O
lacking	O
replay	O
value	O
.	O
</s>
<s>
Both	O
Frances	O
and	O
Evans-Thirlwell	O
were	O
positive	O
,	O
echoing	O
MacDoland	O
's	O
praise	O
of	O
the	O
DLC	B-Protocol
's	O
standalone	O
strength	O
.	O
</s>
