<s>
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
is	O
a	O
visual	O
novel	O
and	O
adventure	O
video	O
game	O
developed	O
by	O
Chunsoft	O
.	O
</s>
<s>
It	O
is	O
the	O
first	O
installment	O
in	O
the	O
Zero	B-Application
Escape	I-Application
series	I-Application
,	O
and	O
was	O
released	O
in	O
Japan	O
in	O
December	O
2009	O
and	O
in	O
North	O
America	O
in	O
November	O
2010	O
for	O
the	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
The	O
gameplay	O
alternates	O
between	O
two	O
types	O
of	O
sections	O
:	O
Escape	O
sections	O
,	O
where	O
the	O
player	O
completes	O
puzzles	O
in	O
escape-the-room	B-Application
scenarios	O
;	O
and	O
Novel	O
sections	O
,	O
where	O
the	O
player	O
reads	O
the	O
game	O
's	O
narrative	O
and	O
makes	O
decisions	O
that	O
influence	O
the	O
story	O
toward	O
one	O
of	O
six	O
different	O
endings	O
.	O
</s>
<s>
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
was	O
positively	O
received	O
,	O
with	O
reviewers	O
praising	O
the	O
story	O
,	O
writing	O
and	O
puzzles	O
,	O
but	O
criticizing	O
the	O
game	O
's	O
tone	O
and	O
how	O
the	O
player	O
is	O
required	O
to	O
re-do	O
the	O
puzzles	O
every	O
time	O
they	O
play	O
through	O
the	O
game	O
(	O
which	O
is	O
necessary	O
in	O
order	O
to	O
obtain	O
the	O
true	O
ending	O
)	O
.	O
</s>
<s>
Although	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
was	O
developed	O
as	O
a	O
stand-alone	O
title	O
,	O
its	O
unexpected	O
critical	O
success	O
in	O
North	O
America	O
prompted	O
the	O
continuation	O
of	O
the	O
series	O
.	O
</s>
<s>
The	O
sequel	O
,	O
Zero	B-Application
Escape	I-Application
:	I-Application
Virtue	I-Application
's	I-Application
Last	I-Application
Reward	I-Application
,	O
was	O
released	O
in	O
2012	O
,	O
which	O
was	O
followed	O
by	O
Zero	B-Application
Time	I-Application
Dilemma	I-Application
,	O
released	O
in	O
2016	O
.	O
</s>
<s>
An	O
updated	O
version	O
of	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
,	O
with	O
voice	O
acting	O
and	O
higher	O
resolution	O
graphics	O
,	O
was	O
released	O
alongside	O
a	O
port	O
of	O
Virtue	B-Application
's	I-Application
Last	I-Application
Reward	I-Application
as	O
part	O
of	O
the	O
Zero	B-Application
Escape	I-Application
:	I-Application
The	I-Application
Nonary	I-Application
Games	I-Application
.	O
</s>
<s>
This	O
bundle	O
was	O
released	O
for	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
PlayStation	B-Device
Vita	I-Device
,	O
and	O
Microsoft	B-Application
Windows	I-Application
via	O
Steam	B-Application
in	O
March	O
2017	O
,	O
and	O
for	O
Xbox	B-Device
One	I-Device
and	O
Xbox	B-Application
Game	I-Application
Pass	I-Application
in	O
March	O
2022	O
.	O
</s>
<s>
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
is	O
an	O
adventure	O
game	O
in	O
which	O
the	O
player	O
assumes	O
the	O
role	O
of	O
a	O
college	O
student	O
named	O
Junpei	O
.	O
</s>
<s>
To	O
escape	O
,	O
the	O
player	O
is	O
tasked	O
with	O
finding	O
various	O
items	O
and	O
solving	O
puzzles	O
,	O
reminiscent	O
of	O
escape-the-room	B-Application
games	O
.	O
</s>
<s>
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
features	O
nine	O
main	O
characters	O
,	O
who	O
are	O
forced	O
to	O
participate	O
in	O
the	O
Nonary	O
Game	O
by	O
an	O
unknown	O
person	O
named	O
Zero	O
.	O
</s>
<s>
It	O
is	O
then	O
revealed	O
that	O
the	O
portion	O
of	O
the	O
game	O
's	O
narrative	O
portrayed	O
on	O
the	O
bottom	O
screen	O
of	O
the	O
Nintendo	B-Device
DS	I-Device
is	O
presented	O
from	O
a	O
12-year-old	O
Akane	O
's	O
point	O
of	O
view	O
during	O
the	O
first	O
Nonary	O
Game	O
(	O
in	O
the	O
game	O
's	O
2017	O
re-release	O
,	O
Akane	O
's	O
perspective	O
is	O
actually	O
the	O
"	O
NVL	O
Mode	O
"	O
that	O
displays	O
narrative	O
text	O
unlike	O
the	O
"	O
ADV	O
Mode	O
"	O
)	O
.	O
</s>
<s>
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
was	O
developed	O
by	O
the	O
Japanese	O
game	O
studio	O
Chunsoft	O
and	O
directed	O
by	O
Kotaro	O
Uchikoshi	O
,	O
and	O
produced	O
by	O
Jiro	O
Ishii	O
.	O
</s>
<s>
Chunsoft	O
had	O
made	O
successful	O
visual	O
novels	O
in	O
the	O
past	O
,	O
such	O
as	O
Kamaitachi	B-Application
no	I-Application
Yoru	I-Application
(	O
1994	O
)	O
,	O
but	O
wanted	O
to	O
create	O
a	O
new	O
type	O
of	O
visual	O
novel	O
that	O
could	O
be	O
received	O
by	O
a	O
wider	O
audience	O
;	O
they	O
contacted	O
Uchikoshi	O
,	O
who	O
at	O
the	O
time	O
was	O
working	O
on	O
a	O
mobile	O
game	O
based	O
on	O
Kamaitachi	B-Application
no	I-Application
Yoru	I-Application
,	O
and	O
asked	O
him	O
to	O
serve	O
as	O
a	O
writer	O
for	O
the	O
then	O
upcoming	O
visual	O
novel	O
428	B-Application
:	I-Application
Shibuya	I-Application
Scramble	I-Application
.	O
</s>
<s>
Uchikoshi	O
did	O
not	O
join	O
the	O
company	O
in	O
time	O
to	O
work	O
on	O
428	B-Application
,	O
but	O
came	O
up	O
with	O
the	O
idea	O
to	O
include	O
puzzles	O
that	O
are	O
integrated	O
within	O
a	O
story	O
,	O
and	O
need	O
to	O
be	O
solved	O
for	O
the	O
player	O
to	O
make	O
progress	O
:	O
he	O
enjoyed	O
playing	O
browser-based	O
escape-the-room	B-Application
games	O
,	O
but	O
thought	O
that	O
they	O
would	O
be	O
more	O
interesting	O
if	O
they	O
had	O
a	O
larger	O
focus	O
on	O
telling	O
a	O
story	O
.	O
</s>
<s>
This	O
idea	O
served	O
as	O
the	O
basis	O
for	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
,	O
and	O
Uchikoshi	O
was	O
named	O
director	O
of	O
the	O
project	O
.	O
</s>
<s>
Development	O
of	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
began	O
in	O
2008	O
.	O
</s>
<s>
Another	O
source	O
of	O
inspiration	O
was	O
Kamaitachi	B-Application
no	I-Application
Yoru	I-Application
,	O
which	O
,	O
like	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
,	O
begins	O
with	O
putting	O
the	O
characters	O
in	O
a	O
state	O
of	O
discomfort	O
.	O
</s>
<s>
This	O
was	O
a	O
theme	O
Uchikoshi	O
had	O
used	O
before	O
,	O
when	O
writing	O
the	O
visual	O
novel	O
Ever	B-Application
17	I-Application
:	I-Application
The	I-Application
Out	I-Application
of	I-Application
Infinity	I-Application
(	O
2002	O
)	O
.	O
</s>
<s>
The	O
music	O
was	O
written	O
using	O
the	O
Nintendo	B-Device
DS	I-Device
's	O
internal	O
synth	O
,	O
and	O
Hosoe	O
worked	O
together	O
with	O
fellow	O
SuperSweep	O
composer	O
Yousuke	O
Yasui	O
to	O
make	O
this	O
less	O
obvious	O
.	O
</s>
<s>
When	O
Aksys	O
evaluated	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
,	O
many	O
at	O
the	O
company	O
did	O
not	O
believe	O
in	O
its	O
commercial	O
viability	O
and	O
at	O
first	O
turned	O
it	O
down	O
;	O
as	O
many	O
of	O
the	O
people	O
who	O
evaluate	O
games	O
at	O
Aksys	O
do	O
not	O
speak	O
Japanese	O
,	O
it	O
was	O
difficult	O
for	O
them	O
to	O
gauge	O
whether	O
a	O
game	O
was	O
good	O
or	O
not	O
.	O
</s>
<s>
The	O
game	O
's	O
use	O
of	O
Japanese	O
language	O
puns	B-Application
led	O
to	O
problems	O
,	O
as	O
many	O
of	O
them	O
relied	O
on	O
Japanese	O
dialects	O
to	O
function	O
;	O
for	O
these	O
,	O
Bateman	O
replaced	O
them	O
with	O
new	O
puns	B-Application
in	O
English	O
.	O
</s>
<s>
Nakayama	O
had	O
started	O
playing	O
the	O
game	O
prior	O
to	O
starting	O
work	O
on	O
the	O
localization	O
,	O
but	O
did	O
not	O
finish	O
playing	O
it	O
until	O
she	O
was	O
more	O
than	O
halfway	O
through	O
translating	O
it	O
;	O
after	O
learning	O
that	O
the	O
plot	O
hinged	O
on	O
a	O
Japanese	O
pun	B-Application
,	O
they	O
had	O
to	O
halt	O
the	O
localization	O
to	O
discuss	O
it	O
with	O
Uchikoshi	O
and	O
come	O
up	O
with	O
a	O
solution	O
,	O
after	O
which	O
they	O
went	O
through	O
the	O
whole	O
game	O
to	O
make	O
sure	O
that	O
it	O
still	O
made	O
sense	O
.	O
</s>
<s>
This	O
became	O
a	O
highly	O
popular	O
meme	O
within	O
Zero	B-Application
Escape	I-Application
circles	O
.	O
</s>
<s>
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
was	O
originally	O
released	O
in	O
Japan	O
by	O
Spike	O
on	O
December	O
10	O
,	O
2009	O
,	O
for	O
the	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
Upon	O
release	O
,	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
became	O
the	O
eleventh	O
Nintendo	B-Device
DS	I-Device
game	O
to	O
be	O
rated	O
M	O
by	O
the	O
ESRB	O
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
game	O
,	O
other	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
media	O
was	O
released	O
.	O
</s>
<s>
A	O
novelization	O
of	O
the	O
game	O
,	O
Kyokugen	B-Application
Dasshutsu	I-Application
9	O
Jikan	O
9	O
Nin	O
9	O
no	O
Tobira	O
Alterna	O
,	O
was	O
written	O
by	O
Kenji	O
Kuroda	O
and	O
released	O
by	O
Kodansha	O
in	O
2010	O
in	O
two	O
volumes	O
,	O
titled	O
Ue	O
and	O
Shita	O
.	O
</s>
<s>
Coinciding	O
with	O
the	O
release	O
of	O
the	O
game	O
's	O
sequel	O
,	O
Zero	B-Application
Escape	I-Application
:	I-Application
Virtue	I-Application
's	I-Application
Last	I-Application
Reward	I-Application
(	O
2012	O
)	O
,	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
was	O
reprinted	O
under	O
the	O
title	O
Zero	B-Application
Escape	I-Application
:	I-Application
Nine	I-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
,	O
with	O
new	O
box	O
art	O
featuring	O
the	O
Zero	B-Application
Escape	I-Application
brand	O
.	O
</s>
<s>
An	O
iOS	B-Application
version	O
of	O
the	O
game	O
,	O
999	B-Application
:	I-Application
The	I-Application
Novel	I-Application
,	O
was	O
developed	O
by	O
Spike	O
Chunsoft	O
as	O
the	O
second	O
entry	O
in	O
their	O
Smart	O
Sound	O
Novel	O
series	O
.	O
</s>
<s>
This	O
version	O
lacks	O
the	O
Escape	O
sections	O
of	O
the	O
Nintendo	B-Device
DS	I-Device
version	O
,	O
and	O
features	O
high	O
resolution	O
graphics	O
and	O
an	O
added	O
flowchart	B-Language
that	O
helps	O
players	O
keep	O
track	O
of	O
which	O
narrative	O
paths	O
they	O
have	O
experienced	O
;	O
additionally	O
,	O
dialogue	O
is	O
presented	O
through	O
speech	O
bubbles	O
,	O
and	O
an	O
extra	O
ending	O
is	O
included	O
.	O
</s>
<s>
Zero	B-Application
Escape	I-Application
:	I-Application
The	I-Application
Nonary	I-Application
Games	I-Application
,	O
a	O
bundle	O
that	O
contains	O
remastered	O
versions	O
of	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
and	O
Virtue	B-Application
's	I-Application
Last	I-Application
Reward	I-Application
,	O
was	O
released	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
PlayStation	B-Operating_System
4	I-Operating_System
and	O
PlayStation	B-Device
Vita	I-Device
in	O
the	O
West	O
on	O
March	O
24	O
,	O
2017	O
.	O
</s>
<s>
People	O
who	O
purchased	O
the	O
Windows	O
version	O
through	O
Steam	B-Application
in	O
its	O
first	O
week	O
of	O
release	O
received	O
a	O
complimentary	O
soundtrack	O
,	O
with	O
songs	O
from	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
and	O
Virtue	B-Application
's	I-Application
Last	I-Application
Reward	I-Application
.	O
</s>
<s>
In	O
Japan	O
,	O
the	O
Microsoft	B-Application
Windows	I-Application
version	O
launched	O
on	O
March	O
25	O
and	O
the	O
console	O
versions	O
on	O
April	O
13	O
.	O
</s>
<s>
The	O
European	O
PlayStation	B-Device
Vita	I-Device
version	O
was	O
released	O
on	O
December	O
15	O
.	O
</s>
<s>
The	B-Application
Nonary	I-Application
Games	I-Application
was	O
later	O
released	O
for	O
Xbox	B-Device
One	I-Device
on	O
March	O
22	O
,	O
2022	O
,	O
and	O
was	O
added	O
to	O
the	O
Xbox	B-Application
Game	I-Application
Pass	I-Application
service	O
for	O
console	O
,	O
PC	O
and	O
cloud	B-Application
on	O
the	O
same	O
date	O
.	O
</s>
<s>
The	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
remaster	O
retained	O
most	O
of	O
the	O
features	O
from	O
The	O
Novel	O
,	O
but	O
the	O
new	O
ending	O
was	O
not	O
included	O
.	O
</s>
<s>
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
was	O
well	O
received	O
by	O
critics	O
,	O
according	O
to	O
the	O
review	B-Application
aggregator	I-Application
Metacritic	O
.	O
</s>
<s>
Zach	O
Kaplan	O
at	O
Nintendo	O
Life	O
liked	O
the	O
dialogue	O
,	O
but	O
found	O
the	O
third-person	O
narration	O
to	O
be	O
dull	O
and	O
slow	O
,	O
with	O
out-of-place	O
or	O
clichéd	O
metaphors	O
and	O
similes	B-Application
.	O
</s>
<s>
Ponce	O
and	O
Petit	O
liked	O
that	O
the	O
puzzles	O
never	O
became	O
"	O
pixel	O
hunts	O
"	O
,	O
and	O
how	O
everything	O
is	O
visible	O
as	O
long	O
as	O
the	O
player	O
looks	O
carefully	O
;	O
because	O
of	O
this	O
and	O
the	O
lack	O
of	O
red	O
herrings	O
,	O
time	O
limits	O
and	O
dead	O
ends	O
,	O
Ponce	O
found	O
it	O
to	O
be	O
better	O
than	O
other	O
escape-the-room	B-Application
games	O
.	O
</s>
<s>
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
received	O
some	O
awards	O
from	O
gaming	O
publications	O
,	O
including	O
:	O
Best	O
Story	O
of	O
2010	O
from	O
IGN	O
,	O
Best	O
Graphic	O
Adventure	O
of	O
2010	O
on	O
a	O
Handheld	O
System	O
from	O
RPGFan	O
,	O
and	O
an	O
Editor	O
's	O
Choice	O
Award	O
from	O
Destructoid	O
.	O
</s>
<s>
Bob	O
Mackey	O
at	O
1UP.com	O
featured	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
on	O
a	O
list	O
of	O
"	O
must-play	O
"	O
Nintendo	B-Device
DS	I-Device
visual	O
novels	O
,	O
citing	O
its	O
story	O
,	O
themes	O
and	O
"	O
zany	O
narrative	O
experimentation	O
"	O
,	O
and	O
Jason	O
Schreier	O
at	O
Kotaku	O
included	O
it	O
on	O
a	O
list	O
of	O
"	O
must-play	O
"	O
visual	O
novels	O
worth	O
playing	O
even	O
for	O
people	O
who	O
do	O
not	O
like	O
anime	O
tropes	O
.	O
</s>
<s>
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
is	O
the	O
first	O
game	O
in	O
the	O
Zero	B-Application
Escape	I-Application
series	I-Application
,	O
and	O
was	O
originally	O
intended	O
to	O
be	O
a	O
stand-alone	O
game	O
.	O
</s>
<s>
Zero	B-Application
Escape	I-Application
:	I-Application
Virtue	I-Application
's	I-Application
Last	I-Application
Reward	I-Application
,	O
the	O
successor	O
to	O
Nine	B-Application
Hours	I-Application
,	I-Application
Nine	I-Application
Persons	I-Application
,	I-Application
Nine	I-Application
Doors	I-Application
,	O
was	O
announced	O
in	O
August	O
2011	O
.	O
</s>
<s>
Developed	O
by	O
Chunsoft	O
for	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
and	O
PlayStation	B-Device
Vita	I-Device
,	O
the	O
game	O
was	O
first	O
released	O
on	O
February	O
16	O
,	O
2012	O
in	O
Japan	O
,	O
and	O
later	O
that	O
year	O
in	O
North	O
America	O
and	O
Europe	O
.	O
</s>
<s>
Virtue	B-Application
's	I-Application
Last	I-Application
Reward	I-Application
also	O
follows	O
a	O
group	O
of	O
nine	O
people	O
,	O
and	O
focuses	O
on	O
game	O
theory	O
,	O
specifically	O
the	O
prisoner	O
's	O
dilemma	O
.	O
</s>
<s>
Zero	B-Application
Time	I-Application
Dilemma	I-Application
is	O
set	O
between	O
the	O
events	O
of	O
the	O
previous	O
two	O
games	O
,	O
and	O
has	O
morality	O
as	O
its	O
main	O
theme	O
.	O
</s>
