<s>
Harmonia	B-Application
is	O
a	O
Japanese	O
post-apocalyptic	O
visual	O
novel	O
developed	O
by	O
Key	O
,	O
a	O
brand	O
of	O
Visual	O
Arts	O
.	O
</s>
<s>
It	O
was	O
released	O
on	O
September	O
23	O
,	O
2016	O
for	O
Windows	B-Application
on	O
Steam	B-Application
,	O
and	O
was	O
available	O
in	O
English	O
before	O
its	O
Japanese	O
release	O
on	O
December	O
29	O
,	O
2016	O
.	O
</s>
<s>
It	O
was	O
later	O
ported	O
to	O
the	O
Nintendo	B-Application
Switch	I-Application
.	O
</s>
<s>
The	O
story	O
is	O
set	O
in	O
a	O
world	O
where	O
artificially	B-Application
intelligent	I-Application
,	O
emotional	O
androids	O
called	O
Phiroids	O
were	O
developed	O
before	O
a	O
rapid	O
decline	O
in	O
human	O
civilization	O
.	O
</s>
<s>
Like	O
Key	O
's	O
2004	O
game	O
Planetarian	B-Application
:	I-Application
The	I-Application
Reverie	I-Application
of	I-Application
a	I-Application
Little	I-Application
Planet	I-Application
,	O
Harmonia	B-Application
is	O
defined	O
as	O
a	O
"	O
kinetic	O
novel	O
"	O
,	O
since	O
its	O
gameplay	O
offers	O
no	O
choices	O
or	O
alternate	O
endings	O
.	O
</s>
<s>
Harmonia	B-Application
was	O
described	O
as	O
providing	O
an	O
emotional	O
impact	O
despite	O
its	O
short	O
length	O
,	O
but	O
was	O
said	O
to	O
not	O
be	O
as	O
impactful	O
as	O
other	O
titles	O
developed	O
by	O
Key	O
.	O
</s>
<s>
Harmonia	B-Application
is	O
set	O
in	O
a	O
post-apocalyptic	O
world	O
sometime	O
in	O
the	O
future	O
.	O
</s>
<s>
During	O
this	O
time	O
,	O
artificially	B-Application
intelligent	I-Application
,	O
emotional	O
androids	O
called	O
Phiroids	O
were	O
developed	O
to	O
serve	O
as	O
partners	O
for	O
humans	O
.	O
</s>
<s>
Harmonia	B-Application
is	O
a	O
visual	O
novel	O
in	O
which	O
the	O
player	O
assumes	O
the	O
role	O
of	O
Rei	O
.	O
</s>
<s>
Harmonia	B-Application
begins	O
when	O
the	O
protagonist	O
wakes	O
up	O
in	O
a	O
derelict	O
facility	O
without	O
any	O
memories	O
of	O
who	O
or	O
where	O
he	O
is	O
.	O
</s>
<s>
To	O
pay	O
Shiona	O
back	O
for	O
her	O
kindness	O
,	O
Rei	O
sets	O
out	O
to	O
repair	O
a	O
broken	O
music	B-Application
box	I-Application
containing	O
a	O
song	O
her	O
brother	O
had	O
composed	O
.	O
</s>
<s>
Once	O
the	O
music	B-Application
box	I-Application
is	O
repaired	O
,	O
Shiona	O
is	O
able	O
to	O
sing	O
to	O
the	O
tune	O
in	O
the	O
town	O
plaza	O
while	O
Rei	O
plays	O
the	O
music	B-Application
box	I-Application
.	O
</s>
<s>
Tipi	O
gives	O
Rei	O
access	O
to	O
an	O
electronic	O
library	O
on	O
a	O
tablet	B-Device
shortly	O
before	O
her	O
battery	O
is	O
no	O
longer	O
able	O
to	O
function	O
.	O
</s>
<s>
Rei	O
puts	O
Shiona	O
and	O
Tipi	O
in	O
cryogenic	O
pods	O
before	O
leaving	O
with	O
the	O
music	B-Application
box	I-Application
in	O
an	O
attempt	O
to	O
find	O
a	O
world	O
where	O
humans	O
and	O
Phiroids	O
can	O
coexist	O
.	O
</s>
<s>
Sometime	O
later	O
,	O
Shiona	O
wakes	O
up	O
in	O
a	O
facility	O
with	O
her	O
memories	O
wiped	O
,	O
but	O
she	O
is	O
told	O
that	O
there	O
was	O
a	O
music	B-Application
box	I-Application
with	O
her	O
when	O
she	O
was	O
found	O
.	O
</s>
<s>
Prompted	O
by	O
the	O
tune	O
playing	O
from	O
the	O
music	B-Application
box	I-Application
,	O
Shiona	O
sings	O
the	O
song	O
which	O
is	O
now	O
known	O
worldwide	O
.	O
</s>
<s>
Harmonia	B-Application
is	O
directed	O
by	O
Kai	O
,	O
who	O
also	O
wrote	O
the	O
scenario	O
with	O
Tsuzuru	O
Nakamura	O
.	O
</s>
<s>
At	O
the	O
time	O
,	O
she	O
was	O
most	O
pleased	O
with	O
her	O
art	O
in	O
Harmonia	B-Application
compared	O
to	O
her	O
art	O
in	O
other	O
games	O
,	O
especially	O
with	O
how	O
she	O
drew	O
the	O
faces	O
of	O
the	O
characters	O
.	O
</s>
<s>
Two	O
music	O
albums	O
were	O
released	O
on	O
May	O
26	O
,	O
2017	O
:	O
Harmonia	B-Application
original	O
soundtrack	O
and	O
a	O
piano	O
remix	O
album	O
titled	O
Teneritas	O
.	O
</s>
<s>
Harmonia	B-Application
is	O
Key	O
's	O
12th	O
visual	O
novel	O
and	O
second	O
"	O
kinetic	O
novel	O
"	O
after	O
Planetarian	B-Application
:	I-Application
The	I-Application
Reverie	I-Application
of	I-Application
a	I-Application
Little	I-Application
Planet	I-Application
.	O
</s>
<s>
It	O
was	O
announced	O
in	O
April	O
2015	O
to	O
celebrate	O
Key	O
's	O
15th	O
anniversary	O
,	O
and	O
added	O
to	O
Steam	B-Application
Greenlight	O
in	O
October	O
2015	O
,	O
but	O
this	O
was	O
followed	O
by	O
numerous	O
delays	O
.	O
</s>
<s>
It	O
was	O
released	O
on	O
September	O
23	O
,	O
2016	O
for	O
Windows	B-Application
on	O
Steam	B-Application
,	O
and	O
was	O
available	O
in	O
English	O
before	O
its	O
Japanese	O
release	O
on	O
December	O
29	O
,	O
2016	O
at	O
Comiket	O
91	O
.	O
</s>
<s>
Although	O
only	O
a	O
limited	O
number	O
of	O
copies	O
were	O
sold	O
at	O
Comiket	O
,	O
Harmonia	B-Application
was	O
released	O
for	O
general	O
sale	O
on	O
May	O
26	O
,	O
2017	O
in	O
Japan	O
.	O
</s>
<s>
According	O
to	O
Visual	O
Arts	O
president	O
Takahiro	O
Baba	O
,	O
Harmonia	B-Application
was	O
first	O
released	O
in	O
English	O
because	O
he	O
wanted	O
to	O
know	O
how	O
the	O
game	O
would	O
be	O
received	O
worldwide	O
before	O
its	O
release	O
in	O
Japan	O
.	O
</s>
<s>
Prototype	O
released	O
a	O
Nintendo	B-Application
Switch	I-Application
port	O
worldwide	O
on	O
October	O
20	O
,	O
2022	O
with	O
text	O
support	O
for	O
Japanese	O
,	O
English	O
and	O
Chinese	O
.	O
</s>
<s>
Harmonia	B-Application
ranked	O
at	O
No	O
.	O
</s>
<s>
Marcus	O
Estrada	O
of	O
Hardcore	O
Gamer	O
wrote	O
that	O
although	O
Harmonia	B-Application
was	O
not	O
as	O
"	O
emotionally	O
impactful	O
"	O
as	O
other	O
titles	O
developed	O
by	O
Key	O
,	O
the	O
game	O
still	O
achieved	O
an	O
emotional	O
impact	O
despite	O
its	O
short	O
length	O
.	O
</s>
