<s>
The	O
series	O
takes	O
place	O
in	O
the	O
then-near	O
future	O
and	O
focuses	O
on	O
protagonists	O
Kazuto	O
"	O
Kirito	O
"	O
Kirigaya	O
and	O
Asuna	O
Yuuki	O
as	O
they	O
play	O
through	O
various	O
virtual	B-Application
reality	I-Application
MMORPG	B-Protocol
worlds	O
.	O
</s>
<s>
An	O
anime	O
television	O
series	O
produced	O
by	O
A-1	O
Pictures	O
,	O
known	O
simply	O
as	O
Sword	B-Application
Art	I-Application
Online	I-Application
,	O
aired	O
in	O
Japan	O
between	O
July	O
and	O
December	O
2012	O
,	O
with	O
a	O
television	O
film	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Extra	O
Edition	O
airing	O
on	O
December	O
31	O
,	O
2013	O
,	O
and	O
a	O
second	O
season	O
,	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
II	O
,	O
airing	O
between	O
July	O
and	O
December	O
2014	O
.	O
</s>
<s>
An	O
animated	O
film	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
The	O
Movie	O
:	O
Ordinal	O
Scale	O
,	O
featuring	O
an	O
original	O
story	O
by	O
Kawahara	O
,	O
premiered	O
in	O
Japan	O
and	O
Southeast	O
Asia	O
on	O
February	O
18	O
,	O
2017	O
,	O
and	O
was	O
released	O
in	O
the	O
United	O
States	O
on	O
March	O
9	O
,	O
2017	O
.	O
</s>
<s>
A	O
spin-off	O
anime	O
series	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
Alternative	O
Gun	O
Gale	O
Online	O
premiered	O
in	O
April	O
2018	O
,	O
while	O
a	O
third	O
season	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Alicization	O
aired	O
from	O
October	O
2018	O
to	O
September	O
2020	O
.	O
</s>
<s>
An	O
anime	O
film	O
adaptation	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Progressive	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
Progressive	O
:	O
Aria	O
of	O
a	O
Starless	O
Night	O
premiered	O
on	O
October	O
30	O
,	O
2021	O
.	O
</s>
<s>
A	O
second	O
film	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
Progressive	O
:	O
Scherzo	O
of	O
Deep	O
Night	O
premiered	O
on	O
October	O
22	O
,	O
2022	O
.	O
</s>
<s>
Sword	B-Application
Art	I-Application
Online	I-Application
has	O
received	O
widespread	O
commercial	O
success	O
,	O
with	O
the	O
light	O
novels	O
having	O
over	O
30	O
million	O
copies	O
sold	O
worldwide	O
.	O
</s>
<s>
The	O
anime	O
series	O
has	O
received	O
mixed	O
to	O
positive	O
reviews	O
,	O
with	O
praise	O
for	O
its	O
animation	O
,	O
musical	O
score	O
and	O
exploration	O
of	O
the	O
psychological	O
aspects	O
of	O
virtual	B-Application
reality	I-Application
,	O
but	O
criticisms	O
for	O
its	O
pacing	O
and	O
writing	O
.	O
</s>
<s>
The	O
light	O
novel	O
series	O
spans	O
several	O
virtual	B-Application
reality	I-Application
worlds	O
,	O
beginning	O
with	O
the	O
game	O
,	O
Sword	B-Application
Art	I-Application
Online	I-Application
(	O
SAO	O
)	O
,	O
which	O
is	O
set	O
in	O
a	O
world	O
known	O
as	O
Aincrad	O
.	O
</s>
<s>
Each	O
world	O
is	O
built	O
on	O
a	O
game	O
engine	O
called	O
the	O
World	O
Seed	O
,	O
which	O
was	O
initially	O
developed	O
specifically	O
for	O
SAO	O
by	O
Akihiko	O
Kayaba	O
,	O
but	O
was	O
later	O
duplicated	O
for	O
Alfheim	O
Online	O
(	O
ALO	O
)	O
,	O
and	O
later	O
willed	O
to	O
Kirito	O
,	O
who	O
had	O
it	O
leaked	O
online	O
with	O
the	O
successful	O
intention	O
of	O
reviving	O
the	O
virtual	B-Application
reality	I-Application
industry	O
.	O
</s>
<s>
In	O
2022	O
,	O
a	O
virtual	B-Application
reality	I-Application
massively	B-Protocol
multiplayer	I-Protocol
online	I-Protocol
role-playing	I-Protocol
game	I-Protocol
(	O
VRMMORPG	O
)	O
called	O
Sword	B-Application
Art	I-Application
Online	I-Application
(	O
SAO	O
)	O
was	O
released	O
.	O
</s>
<s>
Several	O
months	O
later	O
,	O
he	O
is	O
informed	O
by	O
Agil	O
,	O
another	O
SAO	O
survivor	O
,	O
that	O
a	O
figure	O
similar	O
to	O
Asuna	O
was	O
spotted	O
on	O
"	O
The	O
World	B-Application
Tree	I-Application
"	O
in	O
another	O
VRMMORPG	O
cyberspace	O
called	O
Alfheim	O
Online	O
(	O
ALO	O
)	O
.	O
</s>
<s>
Before	O
leaving	O
ALO	O
to	O
see	O
Asuna	O
,	O
Kayaba	O
,	O
who	O
has	O
uploaded	O
his	O
mind	O
to	O
the	O
Internet	O
using	O
an	O
experimental	O
and	O
destructively	O
high-power	O
version	O
of	O
NerveGear	O
at	O
the	O
cost	O
of	O
his	O
life	O
,	O
entrusts	O
Kirito	O
with	O
The	O
Seed	O
a	O
package	B-Application
program	O
designed	O
to	O
create	O
virtual	O
worlds	O
.	O
</s>
<s>
He	O
tests	O
the	O
STL	O
by	O
entering	O
the	O
Underworld	O
(	O
UW	O
)	O
,	O
a	O
virtual	B-Application
reality	I-Application
cyberspace	O
created	O
with	O
The	O
Seed	O
package	B-Application
.	O
</s>
<s>
Aside	O
from	O
Accel	O
World	O
,	O
he	O
was	O
requested	O
to	O
get	O
his	O
earlier	O
work	O
,	O
Sword	B-Application
Art	I-Application
Online	I-Application
,	O
published	O
by	O
ASCII	O
Media	O
Works	O
.	O
</s>
<s>
After	O
Kawahara	O
's	O
request	O
for	O
Sword	B-Application
Art	I-Application
Online	I-Application
to	O
be	O
published	O
was	O
approved	O
,	O
he	O
started	O
working	O
with	O
illustrator	O
abec	O
on	O
the	O
light	O
novel	O
series	O
.	O
</s>
<s>
The	O
first	O
eight	O
volumes	O
of	O
the	O
light	O
novel	O
series	O
told	O
the	O
story	O
arcs	O
for	O
Sword	B-Application
Art	I-Application
Online	I-Application
,	O
Alfheim	O
Online	O
,	O
and	O
Gun	O
Gale	O
Online	O
.	O
</s>
<s>
Kawahara	O
also	O
writes	O
the	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Progressive	O
series	O
,	O
which	O
covers	O
Kirito	O
's	O
adventures	O
on	O
the	O
first	O
few	O
floors	O
of	O
Aincrad	O
.	O
</s>
<s>
The	O
first	O
volume	O
of	O
a	O
light	O
novel	O
series	O
based	O
on	O
Sword	B-Application
Art	I-Application
Online	I-Application
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
Alternative	O
Gun	O
Gale	O
Online	O
,	O
written	O
by	O
Keiichi	O
Sigsawa	O
with	O
illustrations	O
by	O
Kouhaku	O
Kuroboshi	O
,	O
was	O
published	O
by	O
ASCII	O
Media	O
Works	O
on	O
December	O
10	O
,	O
2014	O
.	O
</s>
<s>
An	O
original	O
100-page	O
prequel	O
novel	O
to	O
Sword	B-Application
Art	I-Application
Online	I-Application
The	O
Movie	O
:	O
Ordinal	O
Scale	O
written	O
by	O
Kawahara	O
,	O
titled	O
Hopeful	O
Chant	O
,	O
was	O
released	O
to	O
people	O
who	O
watched	O
the	O
film	O
in	O
Japan	O
during	O
March	O
4	O
–	O
10	O
,	O
2017	O
.	O
</s>
<s>
Yen	O
Press	O
later	O
announced	O
their	O
license	O
of	O
the	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Progressive	O
series	O
,	O
which	O
is	O
scheduled	O
for	O
release	O
in	O
2015	O
.	O
</s>
<s>
The	O
first	O
volume	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
was	O
released	O
on	O
September	O
27	O
,	O
2012	O
.	O
</s>
<s>
A	O
manga	O
adaption	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Progressive	O
,	O
illustrated	O
by	O
Kiseki	O
Himura	O
,	O
began	O
serialization	O
in	O
the	O
August	O
2013	O
issue	O
of	O
Dengeki	O
G	O
's	O
Magazine	O
.	O
</s>
<s>
A	O
sixth	O
manga	O
,	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Phantom	O
Bullet	O
and	O
illustrated	O
by	O
Kōtarō	O
Yamada	O
,	O
had	O
its	O
first	O
chapter	O
serialized	O
in	O
the	O
May	O
2014	O
issue	O
of	O
Dengeki	O
Bunko	O
Magazine	O
,	O
with	O
following	O
chapters	O
being	O
digitally	O
serialized	O
on	O
Kadokawa	O
's	O
Comic	O
Walker	O
website	O
.	O
</s>
<s>
A	O
seventh	O
manga	O
,	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Calibur	O
and	O
illustrated	O
by	O
Shii	O
Kiya	O
,	O
was	O
serialized	O
in	O
Dengeki	O
G	O
's	O
Comic	O
between	O
the	O
September	O
2014	O
and	O
July	O
2015	O
issues	O
.	O
</s>
<s>
An	O
eighth	O
manga	O
,	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Mother	O
's	O
Rosario	O
and	O
also	O
by	O
Tsubasa	O
,	O
is	O
based	O
on	O
the	O
seventh	O
volume	O
of	O
the	O
novel	O
series	O
and	O
began	O
serialization	O
in	O
the	O
July	O
2014	O
issue	O
of	O
Dengeki	O
Bunko	O
Magazine	O
.	O
</s>
<s>
A	O
ninth	O
manga	O
,	O
an	O
adaptation	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
Alternative	O
Gun	O
Gale	O
Online	O
,	O
began	O
serialization	O
in	O
the	O
November	O
2015	O
issue	O
of	O
Dengeki	O
Maoh	O
.	O
</s>
<s>
A	O
tenth	O
manga	O
,	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Project	O
Alicization	O
and	O
illustrated	O
by	O
Kōtarō	O
Yamada	O
,	O
based	O
on	O
the	O
Alicization	O
arc	O
of	O
the	O
light	O
novel	O
series	O
,	O
began	O
serialization	O
in	O
the	O
September	O
2016	O
issue	O
of	O
Dengeki	O
Bunko	O
Magazine	O
.	O
</s>
<s>
An	O
anime	O
adaptation	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
was	O
announced	O
at	O
Dengeki	O
Bunko	O
Autumn	O
Festival	O
2011	O
,	O
along	O
with	O
Reki	O
Kawahara	O
's	O
other	O
light	O
novel	O
series	O
,	O
Accel	O
World	O
.	O
</s>
<s>
The	O
series	O
was	O
also	O
streamed	O
on	O
Crunchyroll	O
and	O
Hulu	B-Application
.	O
</s>
<s>
Sword	B-Application
Art	I-Application
Online	I-Application
has	O
been	O
available	O
on	O
Netflix	O
in	O
North	O
America	O
since	O
March	O
15	O
,	O
2014	O
.	O
</s>
<s>
A	O
year-end	O
special	O
,	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
Extra	O
Edition	O
,	O
aired	O
on	O
December	O
31	O
,	O
2013	O
.	O
</s>
<s>
At	O
the	O
end	O
of	O
the	O
special	O
,	O
the	O
anime	O
television	O
series	O
was	O
confirmed	O
for	O
a	O
second	O
season	O
,	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
II	O
,	O
which	O
premiered	O
on	O
July	O
5	O
,	O
2014	O
.	O
</s>
<s>
The	O
third	O
season	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
,	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Alicization	O
,	O
and	O
a	O
spin-off	O
anime	O
,	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
Alternative	O
Gun	O
Gale	O
Online	O
,	O
were	O
announced	O
in	O
2017	O
.	O
</s>
<s>
Sword	B-Application
Art	I-Application
Online	I-Application
Alternative	O
Gun	O
Gale	O
Online	O
,	O
animated	O
by	O
3Hz	O
,	O
premiered	O
in	O
April	O
2018	O
.	O
</s>
<s>
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Alicization	O
aired	O
from	O
October	O
6	O
,	O
2018	O
to	O
March	O
30	O
,	O
2019	O
,	O
with	O
a	O
one-hour	O
world	O
premiere	O
which	O
aired	O
in	O
Japan	O
,	O
the	O
United	O
States	O
,	O
Australia	O
,	O
France	O
,	O
Germany	O
,	O
Russia	O
and	O
South	O
Korea	O
on	O
September	O
15	O
,	O
2018	O
.	O
</s>
<s>
Yuki	O
Kajiura	O
composed	O
the	O
soundtrack	O
for	O
the	O
Sword	B-Application
Art	I-Application
Online	I-Application
anime	O
,	O
which	O
was	O
later	O
released	O
in	O
the	O
limited	O
edition	O
of	O
the	O
anime	O
's	O
fourth	O
and	O
seventh	O
Blu-ray	O
and	O
DVD	O
volumes	O
.	O
</s>
<s>
The	O
main	O
theme	O
for	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Extra	O
Edition	O
is	O
by	O
Eir	O
Aoi	O
.	O
</s>
<s>
The	O
song	O
"	O
Catch	O
the	O
Moment	O
"	O
by	O
LiSA	O
is	O
used	O
as	O
the	O
theme	O
song	O
to	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Ordinal	O
Scale	O
.	O
</s>
<s>
The	O
song	O
by	O
LiSA	O
was	O
used	O
as	O
the	O
theme	O
song	O
to	O
Sword	B-Application
Art	I-Application
Online	I-Application
Progressive	O
:	O
Aria	O
of	O
a	O
Starless	O
Night	O
,	O
while	O
the	O
song	O
by	O
Eir	O
Aoi	O
was	O
used	O
as	O
the	O
theme	O
song	O
to	O
Sword	B-Application
Art	I-Application
Online	I-Application
Progressive	O
:	O
Scherzo	O
of	O
Deep	O
Night	O
.	O
</s>
<s>
These	O
were	O
collected	O
into	O
two	O
compilation	O
albums	O
:	O
Sword	B-Application
Art	I-Application
Online	I-Application
Song	O
Collection	O
,	O
which	O
included	O
character	O
songs	O
released	O
in	O
the	O
season	O
one	O
volumes	O
,	O
was	O
released	O
on	O
August	O
27	O
,	O
2014	O
,	O
while	O
Sword	B-Application
Art	I-Application
Online	I-Application
Song	O
Collection	O
II	O
,	O
which	O
included	O
character	O
songs	O
released	O
in	O
the	O
season	O
two	O
volumes	O
,	O
was	O
released	O
on	O
March	O
22	O
,	O
2017	O
.	O
</s>
<s>
In	O
celebration	O
of	O
the	O
anime	O
's	O
10th	O
anniversary	O
,	O
the	O
song	O
was	O
used	O
as	O
the	O
theme	O
song	O
for	O
the	O
commemorative	O
event	O
"	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Full	O
Dive	O
"	O
,	O
held	O
on	O
November	O
6	O
,	O
2022	O
.	O
</s>
<s>
An	O
animated	O
film	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
The	O
Movie	O
:	O
Ordinal	O
Scale	O
,	O
featuring	O
an	O
original	O
story	O
by	O
Kawahara	O
set	O
after	O
the	O
events	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
II	O
,	O
premiered	O
in	O
Japan	O
and	O
Southeast	O
Asia	O
on	O
February	O
18	O
,	O
2017	O
,	O
and	O
was	O
released	O
in	O
the	O
United	O
States	O
on	O
March	O
9	O
,	O
2017	O
.	O
</s>
<s>
After	O
the	O
finale	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Alicization	O
-	O
War	O
of	O
Underworld	O
,	O
an	O
anime	O
adaptation	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Progressive	O
was	O
announced	O
.	O
</s>
<s>
It	O
was	O
later	O
revealed	O
to	O
be	O
a	O
new	O
film	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
Progressive	O
:	O
Aria	O
of	O
a	O
Starless	O
Night	O
,	O
which	O
premiered	O
on	O
October	O
30	O
,	O
2021	O
.	O
</s>
<s>
After	O
the	O
premiere	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
Progressive	O
:	O
Aria	O
of	O
a	O
Starless	O
Night	O
,	O
a	O
sequel	O
film	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
Progressive	O
:	O
Scherzo	O
of	O
Deep	O
Night	O
was	O
announced	O
.	O
</s>
<s>
During	O
the	O
commemorative	O
event	O
"	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Full	O
Dive	O
"	O
,	O
a	O
new	O
film	O
project	O
was	O
announced	O
.	O
</s>
<s>
The	O
first	O
Sword	B-Application
Art	I-Application
Online	I-Application
adaptation	O
,	O
titled	O
,	O
was	O
published	O
by	O
Namco	O
Bandai	O
Games	O
for	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
.	O
</s>
<s>
The	O
game	O
follows	O
an	O
alternate	O
storyline	O
,	O
in	O
which	O
a	O
glitch	O
causes	O
Kirito	O
and	O
the	O
other	O
players	O
to	O
remain	O
in	O
Sword	B-Application
Art	I-Application
Online	I-Application
despite	O
defeating	O
Heathcliff	O
,	O
and	O
players	O
from	O
other	O
VMMORPGs	O
such	O
as	O
Leafa	O
and	O
Sinon	O
get	O
sucked	O
into	O
the	O
game	O
themselves	O
.	O
</s>
<s>
Sword	B-Application
Art	I-Application
Online	I-Application
:	I-Application
Hollow	I-Application
Fragment	I-Application
is	O
a	O
PlayStation	B-Device
Vita	I-Device
game	O
released	O
in	O
Japan	O
on	O
April	O
24	O
,	O
2014	O
.	O
</s>
<s>
Sword	B-Application
Art	I-Application
Online	I-Application
:	I-Application
Hollow	I-Application
Fragment	I-Application
takes	O
place	O
in	O
the	O
same	O
alternative	O
storyline	O
as	O
Sword	B-Device
Art	I-Device
Online	I-Device
:	I-Device
Infinity	I-Device
Moment	I-Device
,	O
and	O
it	O
includes	O
all	O
content	O
of	O
"	O
Floor	O
Clearing	O
"	O
from	O
that	O
previous	O
game	O
with	O
the	O
addition	O
of	O
new	O
unexplored	O
"	O
Hollow	O
Area	O
"	O
of	O
Aincrad	O
.	O
</s>
<s>
A	O
third	O
video	O
game	O
developed	O
by	O
Artdink	O
and	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	I-Application
Lost	I-Application
Song	I-Application
was	O
released	O
in	O
Japan	O
on	O
March	O
26	O
,	O
2015	O
on	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
and	O
Vita	O
platforms	O
,	O
with	O
an	O
English	O
version	O
being	O
released	O
in	O
Asia	O
.	O
</s>
<s>
The	O
game	O
sold	O
139,298	O
physical	O
retail	O
copies	O
on	O
the	O
PlayStation	B-Device
Vita	I-Device
in	O
addition	O
to	O
another	O
55,090	O
units	O
on	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
within	O
its	O
first	O
week	O
of	O
release	O
in	O
Japan	O
,	O
ranking	O
second	O
and	O
sixth	O
place	O
respectively	O
within	O
the	O
Japanese	O
software	O
sales	O
charts	O
for	O
that	O
particular	O
week	O
,	O
narrowly	O
behind	O
Bloodborne	B-Application
taking	O
the	O
top	O
spot	O
.	O
</s>
<s>
A	O
fourth	O
game	O
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	I-Application
Hollow	I-Application
Realization	I-Application
was	O
released	O
in	O
Japan	O
for	O
the	O
PS4	B-Operating_System
,	O
Vita	O
,	O
and	O
Windows	B-Application
on	O
October	O
27	O
,	O
2016	O
and	O
worldwide	O
on	O
November	O
8	O
,	O
2016	O
for	O
the	O
PS4	B-Operating_System
and	O
Vita	O
.	O
</s>
<s>
A	O
social	O
network	O
game	O
called	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
End	O
World	O
was	O
released	O
for	O
Japanese	O
feature	O
phones	O
and	O
smartphones	O
on	O
February	O
28	O
,	O
2013	O
with	O
more	O
than	O
1	O
million	O
registered	O
users	O
.	O
</s>
<s>
Another	O
freemium	O
game	O
for	O
Android	B-Application
and	O
iOS	B-Application
titled	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	I-Application
Code	I-Application
Register	I-Application
launched	O
in	O
2014	O
,	O
and	O
over	O
3,000,000	O
users	O
have	O
downloaded	O
the	O
game	O
.	O
</s>
<s>
Another	O
game	O
called	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Progress	O
Link	O
designed	O
for	O
the	O
Mobage	O
browser	B-Protocol
game	I-Protocol
platform	O
on	O
smartphones	O
was	O
released	O
on	O
February	O
10	O
,	O
2015	O
.	O
</s>
<s>
Kirito	O
,	O
Asuna	O
,	O
Leafa	O
,	O
Yuuki	O
and	O
SAO	O
Alternative	O
:	O
Gun	O
Gale	O
Online	O
protagonist	O
LLENN	O
appear	O
in	O
Dengeki	B-Application
Bunko	I-Application
:	I-Application
Fighting	I-Application
Climax	I-Application
,	O
a	O
fighting	O
game	O
by	O
Sega	O
featuring	O
various	O
characters	O
from	O
works	O
published	O
under	O
the	O
Dengeki	O
Bunko	O
imprint	O
.	O
</s>
<s>
A	O
browser	B-Protocol
game	I-Protocol
titled	O
Sword	O
Art	O
Quest	O
and	O
its	O
sequel	O
smartphone	O
game	O
,	O
Sword	O
Art	O
Quest	O
II	O
provide	O
challenges	O
to	O
users	O
to	O
upgrade	O
their	O
characters	O
to	O
receive	O
rewards	O
.	O
</s>
<s>
There	O
is	O
also	O
a	O
paid	O
Android	B-Application
game	O
titled	O
SAO	O
-Log	O
Out	O
-	O
that	O
users	O
can	O
download	O
and	O
play	O
with	O
characters	O
from	O
the	O
series	O
and	O
obtain	O
wallpapers	O
from	O
it	O
.	O
</s>
<s>
A	O
virtual	B-Application
reality	I-Application
massive	B-Application
multiplayer	I-Application
online	I-Application
game	I-Application
was	O
in	O
development	O
by	O
Kadokawa	O
and	O
IBM	O
Japan	O
,	O
but	O
was	O
only	O
a	O
demo	O
and	O
will	O
not	O
be	O
released	O
as	O
a	O
full	O
game	O
.	O
</s>
<s>
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Millennium	O
Twilight	O
was	O
announced	O
in	O
October	O
2016	O
.	O
</s>
<s>
The	O
game	O
is	O
a	O
crossover	O
with	O
Accel	O
World	O
,	O
published	O
by	O
Bandai	O
Namco	O
Entertainment	O
for	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
PlayStation	B-Device
Vita	I-Device
,	O
and	O
Windows	B-Application
via	O
Steam	B-Application
,	O
and	O
was	O
released	O
to	O
western	O
audiences	O
on	O
July	O
7	O
,	O
2017	O
.	O
</s>
<s>
is	O
a	O
Chinese	O
3D	O
role-playing	O
game	O
where	O
the	O
player	O
can	O
control	O
3D	O
characters	O
and	O
experience	O
Sword	B-Application
Art	I-Application
Online	I-Application
,	O
Alfheim	O
Online	O
,	O
and	O
Gun	O
Gale	O
Online	O
.	O
</s>
<s>
The	O
game	O
was	O
launched	O
on	O
Android	B-Application
on	O
May	O
26	O
,	O
2016	O
and	O
on	O
iOS	B-Application
on	O
June	O
9	O
,	O
2016	O
after	O
a	O
brief	O
period	O
of	O
closed	O
beta	O
,	O
though	O
it	O
is	O
officially	O
still	O
in	O
an	O
"	O
open	O
beta	O
"	O
phase	O
.	O
</s>
<s>
Bandai	O
Namco	O
released	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	I-Application
Memory	I-Application
Defrag	I-Application
RPG	O
for	O
Android	B-Application
and	O
iOS	B-Application
in	O
August	O
2016	O
.	O
</s>
<s>
Bandai	O
Namco	O
released	O
the	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	I-Application
Integral	I-Application
Factor	I-Application
free-to-play	O
MMORPG	B-Protocol
for	O
Android	B-Application
and	O
iOS	B-Application
in	O
December	O
2017	O
,	O
created	O
in	O
conjunction	O
with	O
prolific	O
mobile	O
MMO	O
developer	O
.	O
</s>
<s>
A	O
game	O
based	O
on	O
Gun	O
Gale	O
Online	O
,	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	I-Application
Fatal	I-Application
Bullet	I-Application
,	O
was	O
released	O
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
,	O
Xbox	B-Device
One	I-Device
and	O
Windows	B-Application
on	O
February	O
23	O
,	O
2018	O
.	O
</s>
<s>
Bandai	O
Namco	O
Entertainment	O
released	O
the	O
Sword	B-Application
Art	I-Application
Online	I-Application
VR	O
:	O
Lovely	O
Honey	O
Days	O
mobile	O
game	O
for	O
iOS	B-Application
and	O
Android	B-Application
devices	O
in	O
Japan	O
in	O
October	O
2018	O
.	O
</s>
<s>
Bandai	O
Namco	O
released	O
Sword	B-Application
Art	I-Application
Online	I-Application
Arcade	O
:	O
Deep	O
Explorer	O
in	O
Japanese	O
arcades	O
on	O
March	O
19	O
,	O
2019	O
.	O
</s>
<s>
It	O
is	O
an	O
exploration	O
action	O
RPG	O
that	O
supports	O
up	O
to	O
three	O
players	O
in	O
online	O
co-op	O
and	O
it	O
is	O
the	O
first	O
arcade	O
game	O
in	O
the	O
Sword	B-Application
Art	I-Application
Online	I-Application
series	O
.	O
</s>
<s>
A	O
video	O
game	O
based	O
in	O
the	O
Underworld	O
of	O
Project	O
Alicization	O
,	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Alicization	O
Lycoris	O
,	O
was	O
announced	O
by	O
Bandai	O
Namco	O
for	O
release	O
on	O
the	O
PS4	B-Operating_System
,	O
Xbox	B-Device
One	I-Device
,	O
and	O
Windows	B-Application
.	O
</s>
<s>
A	O
China-exclusive	O
mobile	O
MMO	O
,	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Black	O
Swordsman	O
Ace	O
,	O
was	O
released	O
in	O
2021	O
.	O
</s>
<s>
In	O
2022	O
,	O
the	O
mobile	O
game	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Variant	O
Showdown	O
was	O
released	O
to	O
coincide	O
with	O
the	O
anime	O
's	O
10th	O
anniversary	O
.	O
</s>
<s>
Bandai	O
Namco	O
has	O
announced	O
the	O
video	O
game	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Last	O
Recollection	O
,	O
set	O
to	O
be	O
released	O
worldwide	O
on	O
October	O
6	O
,	O
2023	O
.	O
</s>
<s>
Skydance	O
Television	O
announced	O
on	O
August	O
2	O
,	O
2016	O
that	O
they	O
had	O
acquired	O
the	O
global	O
rights	O
to	O
produce	O
a	O
live-action	O
television	O
adaptation	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
light	O
novel	O
series	O
.	O
</s>
<s>
Skydance	O
has	O
stated	O
their	O
intent	O
to	O
"	O
fast-track	O
"	O
the	O
launch	O
of	O
the	O
series	O
,	O
along	O
with	O
plans	O
to	O
follow	O
the	O
TV	O
series	O
with	O
the	O
release	O
of	O
a	O
Sword	B-Application
Art	I-Application
Online	I-Application
virtual	B-Application
reality	I-Application
experience	O
.	O
</s>
<s>
According	O
to	O
Oricon	O
,	O
Sword	B-Application
Art	I-Application
Online	I-Application
was	O
the	O
top	O
selling	O
light	O
novel	O
series	O
of	O
2012	O
,	O
with	O
eight	O
volumes	O
figuring	O
among	O
the	O
top	O
selling	O
light	O
novels	O
.	O
</s>
<s>
Sword	B-Application
Art	I-Application
Online	I-Application
:	O
Progressive	O
sold	O
321,535	O
copies	O
in	O
the	O
same	O
time	O
period	O
.	O
</s>
<s>
Richard	O
Eisenbeis	O
of	O
Kotaku	O
hails	O
Sword	B-Application
Art	I-Application
Online	I-Application
as	O
the	O
smartest	O
series	O
in	O
recent	O
years	O
,	O
praising	O
its	O
deep	O
insight	O
on	O
the	O
psychological	O
aspects	O
of	O
virtual	B-Application
reality	I-Application
on	O
the	O
human	O
psyche	O
,	O
its	O
sociological	O
views	O
on	O
creating	O
a	O
realistic	O
economy	O
and	O
society	O
in	O
a	O
massively	B-Application
multiplayer	I-Application
online	I-Application
game	I-Application
setting	O
,	O
and	O
the	O
writing	O
staff	O
's	O
ability	O
to	O
juggle	O
a	O
wide	O
variety	O
of	O
genres	O
within	O
the	O
series	O
.	O
</s>
<s>
DeviceCritique	O
explained	O
that	O
Sword	B-Application
Art	I-Application
Online	I-Application
influences	O
the	O
virtual	B-Application
reality	I-Application
market	O
to	O
grow	O
,	O
and	O
referenced	O
the	O
Oculus	B-Device
Rift	I-Device
as	O
a	O
prime	O
example	O
of	O
the	O
starting	O
point	O
of	O
virtual	B-Application
reality	I-Application
.	O
</s>
<s>
It	O
also	O
praised	O
Sword	B-Application
Art	I-Application
Online	I-Application
for	O
exploring	O
the	O
psychological	O
and	O
social	O
aspects	O
of	O
virtual	B-Application
reality	I-Application
gaming	O
.	O
</s>
<s>
Sword	B-Application
Art	I-Application
Online	I-Application
is	O
sometimes	O
considered	O
to	O
be	O
part	O
of	O
the	O
isekai	O
genre	O
,	O
although	O
Kawahara	O
himself	O
does	O
not	O
agree	O
.	O
</s>
<s>
The	O
2012	O
anime	O
adaptation	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
popularized	O
the	O
isekai	O
genre	O
in	O
anime	O
,	O
which	O
led	O
to	O
more	O
isekai	O
web	O
novels	O
being	O
published	O
on	O
the	O
website	O
Shōsetsuka	O
ni	O
Narō	O
(	O
"	O
Let	O
's	O
Become	O
Novelists	O
"	O
)	O
and	O
a	O
number	O
of	O
Narō	O
isekai	O
novels	O
being	O
adapted	O
into	O
anime	O
.	O
</s>
<s>
Ernest	O
Cline	O
,	O
the	O
writer	O
of	O
2011	O
novel	O
Ready	O
Player	O
One	O
,	O
discussed	O
Sword	B-Application
Art	I-Application
Online	I-Application
in	O
an	O
interview	O
,	O
noting	O
how	O
he	O
met	O
its	O
writer	O
Reki	O
Kawahara	O
at	O
an	O
event	O
in	O
Japan	O
where	O
they	O
discussed	O
how	O
they	O
independently	O
developed	O
similar	O
ideas	O
related	O
to	O
virtual	B-Application
reality	I-Application
.	O
</s>
<s>
On	O
June	O
12	O
,	O
2015	O
,	O
the	O
now-inactive	O
Chinese	O
Ministry	O
of	O
Culture	O
listed	O
Sword	B-Application
Art	I-Application
Online	I-Application
II	O
among	O
38	O
anime	O
and	O
manga	O
titles	O
banned	O
in	O
China	O
.	O
</s>
<s>
In	O
July	O
2020	O
,	O
Sword	B-Application
Art	I-Application
Online	I-Application
became	O
one	O
of	O
seven	O
manga	O
titles	O
to	O
be	O
removed	O
from	O
Books	O
Kinokuniya	O
in	O
Australia	O
for	O
claims	O
of	O
promoting	O
child	O
pornography	O
.	O
</s>
<s>
In	O
the	O
2020	O
edition	O
of	O
Kono	O
Light	O
Novel	O
ga	O
Sugoi	O
!,	O
Sword	B-Application
Art	I-Application
Online	I-Application
was	O
voted	O
by	O
the	O
public	O
in	O
an	O
online	O
poll	O
and	O
by	O
a	O
jury	O
(	O
critics	O
,	O
influencers	O
,	O
and	O
other	O
people	O
related	O
to	O
the	O
light	O
novel	O
industry	O
)	O
as	O
the	O
best	O
light	O
novel	O
series	O
of	O
the	O
2010s	O
,	O
being	O
the	O
first	O
in	O
the	O
ranking	O
with	O
1,728	O
.95	O
points	O
.	O
</s>
