<s>
AI	B-Application
:	I-Application
The	I-Application
Somnium	I-Application
Files	I-Application
(	O
)	O
is	O
an	O
adventure	O
video	O
game	O
developed	O
and	O
published	O
by	O
Spike	O
Chunsoft	O
,	O
which	O
released	O
for	O
Nintendo	B-Application
Switch	I-Application
,	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
and	O
Windows	O
on	O
September	O
17	O
2019	O
,	O
and	O
Xbox	B-Device
One	I-Device
on	O
September	O
30	O
,	O
2021	O
.	O
</s>
<s>
A	O
sequel	O
,	O
AI	B-Application
:	I-Application
The	I-Application
Somnium	I-Application
Files	I-Application
–	I-Application
Nirvana	I-Application
Initiative	I-Application
,	O
was	O
released	O
in	O
2022	O
.	O
</s>
<s>
AI	B-Application
:	I-Application
The	I-Application
Somnium	I-Application
Files	I-Application
is	O
a	O
mystery	O
adventure	O
game	O
that	O
has	O
2	O
areas	O
of	O
gameplay	O
:	O
investigation	O
and	O
somnium	O
exploration	O
.	O
</s>
<s>
During	O
the	O
investigation	O
,	O
the	O
player	O
character	O
,	O
Special	O
Agent	O
Kaname	O
Date	O
,	O
uses	O
his	O
artificial	B-Application
intelligence	I-Application
unit	O
,	O
Aiba	O
,	O
to	O
assist	O
Date	O
while	O
performing	O
his	O
duties	O
.	O
</s>
<s>
Her	O
features	O
include	O
X-ray	B-Library
vision	O
and	O
zooming	O
,	O
to	O
further	O
the	O
investigation	O
in	O
the	O
real	O
world	O
.	O
</s>
<s>
During	O
the	O
somnium	O
gameplay	O
,	O
Date	O
uses	O
a	O
device	O
called	O
the	O
Psync	B-Application
Machine	O
to	O
enter	O
the	O
memories	O
of	O
suspects	O
or	O
key	O
witnesses	O
who	O
do	O
not	O
want	O
to	O
share	O
information	O
with	O
him	O
,	O
in	O
the	O
form	O
of	O
dreamscapes	O
called	O
the	O
"	O
Somnium	O
"	O
,	O
to	O
find	O
clues	O
and	O
extract	O
the	O
information	O
by	O
solving	O
puzzles	O
.	O
</s>
<s>
AI	B-Application
:	I-Application
The	I-Application
Somnium	I-Application
Files	I-Application
takes	O
place	O
in	O
a	O
technologically	O
advanced	O
near-future	O
Tokyo	O
,	O
and	O
follows	O
Special	O
Agent	O
Kaname	O
Date	O
of	O
the	O
top-secret	O
police	O
department	O
ABIS	O
(	O
Advanced	O
Brain	O
Investigation	O
Squad	O
)	O
.	O
</s>
<s>
Date	O
is	O
assisted	O
by	O
an	O
artificial	B-Application
intelligence	I-Application
(	O
A.I.	B-Application
)	O
</s>
<s>
housed	O
in	O
his	O
cybernetic	O
left	O
eye	O
named	O
Aiba	O
,	O
who	O
can	O
communicate	O
with	O
Date	O
via	O
an	O
artificial	O
nerve	O
,	O
provide	O
him	O
with	O
enhanced	O
vision	O
modes	O
such	O
as	O
X-Ray	B-Library
and	O
night	O
vision	O
,	O
and	O
hack	O
various	O
electronics	O
.	O
</s>
<s>
Date	O
interrogates	O
then	O
Psyncs	B-Application
with	O
net	O
idol	O
Iris	O
Sagan	O
,	O
who	O
was	O
seen	O
with	O
her	O
producer	O
Renju	O
the	O
day	O
before	O
.	O
</s>
<s>
Date	O
Psyncs	B-Application
with	O
Ota	O
to	O
learn	O
more	O
.	O
</s>
<s>
Mizuki	O
Psyncs	B-Application
with	O
Date	O
to	O
save	O
him	O
,	O
and	O
the	O
case	O
is	O
resolved	O
.	O
</s>
<s>
One	O
of	O
them	O
was	O
the	O
yakuza	B-Application
chairman	O
Rohan	O
Kumakura	O
,	O
the	O
other	O
was	O
currently	O
imprisoned	O
as	O
"	O
#89	O
.	O
"	O
</s>
<s>
Date	O
Psyncs	B-Application
with	O
So	O
,	O
in	O
which	O
he	O
saves	O
Iris	O
's	O
life	O
.	O
</s>
<s>
Date	O
takes	O
Iris	O
along	O
to	O
search	O
for	O
him	O
,	O
but	O
the	O
two	O
are	O
attacked	O
by	O
mercenaries	B-Application
and	O
Iris	O
reveals	O
that	O
she	O
is	O
being	O
targeted	O
by	O
a	O
secret	O
organization	O
.	O
</s>
<s>
Date	O
Psyncs	B-Application
with	O
her	O
to	O
determine	O
the	O
truth	O
.	O
</s>
<s>
At	O
the	O
plant	O
,	O
Date	O
finds	O
a	O
stolen	O
prototype	O
Psync	B-Application
Machine	O
.	O
</s>
<s>
Date	O
also	O
learns	O
the	O
truth	O
of	O
the	O
Psync	B-Application
Machine	O
:	O
staying	O
past	O
the	O
time	O
limit	O
causes	O
the	O
Psyncer	O
and	O
subject	O
to	O
swap	O
bodies	O
.	O
</s>
<s>
After	O
watching	O
Boss	O
shoot	O
So	O
,	O
Date	O
finds	O
and	O
Psyncs	B-Application
with	O
her	O
.	O
</s>
<s>
In	O
her	O
Somnium	O
,	O
he	O
realizes	O
that	O
the	O
murders	O
were	O
committed	O
by	O
one	O
person	O
using	O
the	O
prototype	O
Psync	B-Application
Machine	O
to	O
swap	O
bodies	O
with	O
each	O
of	O
the	O
victims	O
.	O
</s>
<s>
In	O
his	O
original	O
body	O
,	O
Date	O
regains	O
his	O
memories	O
and	O
recalls	O
how	O
he	O
attempted	O
to	O
save	O
Iris	O
and	O
Hitomi	O
from	O
the	O
yakuza	B-Application
by	O
switching	O
bodies	O
with	O
Rohan	O
,	O
but	O
discovered	O
the	O
truth	O
of	O
the	O
Cyclops	O
Killings	O
.	O
</s>
<s>
AI	B-Application
:	I-Application
The	I-Application
Somnium	I-Application
Files	I-Application
was	O
developed	O
by	O
Spike	O
Chunsoft	O
,	O
and	O
was	O
written	O
and	O
directed	O
by	O
Kotaro	O
Uchikoshi	O
,	O
produced	O
by	O
Yasuhiro	O
Iizuka	O
,	O
designed	O
by	O
Akira	O
Okada	O
,	O
and	O
includes	O
character	O
designs	O
by	O
Yūsuke	O
Kozaki	O
and	O
music	O
by	O
Keisuke	O
Ito	O
.	O
</s>
<s>
The	O
game	O
was	O
developed	O
with	O
a	O
higher	O
budget	O
than	O
that	O
of	O
Uchikoshi	O
's	O
previous	O
work	O
,	O
the	O
Zero	B-Application
Escape	I-Application
series	I-Application
,	O
which	O
according	O
to	O
Uchikoshi	O
helped	O
allow	O
him	O
to	O
express	O
his	O
concept	O
for	O
the	O
game	O
in	O
a	O
way	O
that	O
he	O
was	O
unable	O
to	O
with	O
Zero	B-Application
Escape	I-Application
.	O
</s>
<s>
Comparing	O
AI	B-Application
:	I-Application
The	I-Application
Somnium	I-Application
Files	I-Application
with	O
Zero	B-Application
Escape	I-Application
,	O
Uchikoshi	O
described	O
AI	B-Application
:	I-Application
The	I-Application
Somnium	I-Application
Files	I-Application
as	O
being	O
made	O
more	O
with	O
adventure	O
game	O
fans	O
in	O
mind	O
,	O
in	O
contrast	O
to	O
Zero	B-Application
Escape	I-Application
heavy	O
use	O
of	O
cutscenes	O
.	O
</s>
<s>
Ahead	O
of	O
the	O
game	O
's	O
release	O
,	O
a	O
similar	O
system	O
to	O
Aiba	O
,	O
a	O
"	O
Borges	O
A.I.	B-Application
"	O
</s>
<s>
system	O
known	O
as	O
Kudan	O
,	O
was	O
introduced	O
in	O
the	O
light	O
novel	O
trilogy	O
Danganronpa	B-Application
Togami	O
(	O
2015	O
–	O
2017	O
)	O
;	O
further	O
Easter	O
eggs	O
throughout	O
AI	B-Application
:	I-Application
The	I-Application
Somnium	I-Application
Files	I-Application
indicate	O
it	O
to	O
be	O
set	O
in	O
the	O
same	O
fictional	O
universe	O
as	O
the	O
Danganronpa	B-Application
series	O
.	O
</s>
<s>
Two	O
of	O
the	O
game	O
's	O
core	O
themes	O
are	O
eyes	O
and	O
"	O
different	O
types	O
and	O
expressions	O
of	O
love	O
"	O
,	O
reflected	O
in	O
how	O
the	O
title	O
AI	B-Application
is	O
pronounced	O
"	O
eye	O
"	O
and	O
in	O
how	O
is	O
the	O
Japanese	O
word	O
for	O
love	O
.	O
</s>
<s>
The	O
title	O
also	O
has	O
additional	O
meanings	O
in	O
that	O
it	O
is	O
pronounced	O
like	O
the	O
English	O
word	O
"	O
I	O
"	O
and	O
is	O
short	O
for	O
"	O
artificial	B-Application
intelligence	I-Application
"	O
,	O
and	O
the	O
"	O
Somnium	O
"	O
in	O
the	O
subtitle	O
is	O
taken	O
from	O
the	O
Latin	O
word	O
for	O
"	O
dream	O
"	O
.	O
</s>
<s>
The	O
game	O
's	O
investigation-based	O
puzzles	O
are	O
intentionally	O
designed	O
to	O
be	O
less	O
difficult	O
than	O
those	O
in	O
the	O
Zero	B-Application
Escape	I-Application
series	I-Application
,	O
and	O
are	O
described	O
by	O
Uchikoshi	O
as	O
a	O
modern	O
take	O
on	O
the	O
style	O
of	O
Hideo	O
Kojima	O
's	O
1994	O
adventure	O
game	O
Policenauts	B-Application
.	O
</s>
<s>
Other	O
influences	O
on	O
the	O
game	O
included	O
EVE	O
(	O
1995	O
)	O
and	O
The	B-Application
Silver	I-Application
Case	I-Application
(	O
1999	O
)	O
;	O
Okada	O
additionally	O
mentioned	O
Life	B-Application
Is	I-Application
Strange	I-Application
(	O
2015	O
)	O
,	O
Detroit	B-General_Concept
:	I-General_Concept
Become	I-General_Concept
Human	I-General_Concept
(	O
2018	O
)	O
,	O
Heavy	B-Application
Rain	I-Application
(	O
2010	O
)	O
and	O
The	O
Walking	O
Dead	O
(	O
2012	O
–	O
2019	O
)	O
as	O
influencing	O
his	O
work	O
on	O
the	O
game	O
.	O
</s>
<s>
The	O
game	O
was	O
first	O
teased	O
at	O
a	O
Game	O
Developers	O
Conference	O
2017	O
press	O
event	O
under	O
the	O
working	O
title	O
Project	B-Application
Psync	I-Application
,	O
with	O
a	O
piece	O
of	O
artwork	O
depicting	O
an	O
eye	O
.	O
</s>
<s>
In	O
January	O
2019	O
,	O
Spike	O
Chunsoft	O
started	O
promoting	O
the	O
game	O
with	O
a	O
YouTube	B-General_Concept
and	O
Twitter	B-Application
account	I-Application
for	O
the	O
character	O
Iris	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
in	O
North	O
America	O
on	O
September	O
17	O
,	O
2019	O
,	O
in	O
Japan	O
on	O
September	O
19	O
,	O
and	O
in	O
Europe	O
on	O
September	O
20	O
for	O
Nintendo	B-Application
Switch	I-Application
,	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
and	O
Windows	O
with	O
both	O
English	O
and	O
Japanese	O
audio	O
.	O
</s>
<s>
An	O
Xbox	B-Device
One	I-Device
version	O
was	O
announced	O
during	O
Tokyo	O
Game	O
Show	O
on	O
September	O
30	O
,	O
2021	O
.	O
</s>
<s>
It	O
was	O
released	O
digitally	O
on	O
the	O
same	O
day	O
,	O
and	O
is	O
available	O
to	O
Xbox	B-Application
Game	I-Application
Pass	I-Application
subscribers	O
.	O
</s>
<s>
AI	B-Application
:	I-Application
The	I-Application
Somnium	I-Application
Files	I-Application
received	O
generally	O
positive	O
reviews	O
,	O
according	O
to	O
review	B-Application
aggregator	I-Application
Metacritic	O
,	O
and	O
was	O
the	O
12th	O
best	O
reviewed	O
Nintendo	B-Application
Switch	I-Application
game	O
of	O
the	O
year	O
.	O
</s>
<s>
The	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
version	O
ranked	O
27th	O
with	O
2,267	O
copies	O
sold	O
,	O
while	O
the	O
Nintendo	B-Application
Switch	I-Application
version	O
was	O
33rd	O
with	O
1,767	O
copies	O
sold	O
in	O
the	O
Dengeki	O
top	O
50	O
.	O
</s>
<s>
The	O
PC	O
version	O
of	O
the	O
game	O
was	O
among	O
the	O
best-selling	O
new	O
releases	O
of	O
the	O
month	O
on	O
Steam	B-Application
.	O
</s>
<s>
A	O
sequel	O
,	O
AI	B-Application
:	I-Application
The	I-Application
Somnium	I-Application
Files	I-Application
–	I-Application
Nirvana	I-Application
Initiative	I-Application
,	O
was	O
released	O
in	O
June	O
2022	O
for	O
Nintendo	B-Application
Switch	I-Application
,	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
Windows	O
,	O
and	O
Xbox	B-Device
One	I-Device
.	O
</s>
