<s>
BTS	B-Application
World	I-Application
(	O
stylized	O
in	O
all	O
caps	O
)	O
is	O
a	O
mobile	O
video	O
game	O
developed	O
by	O
South	O
Korean	O
studio	O
Takeone	O
Company	O
Corp	O
and	O
published	O
by	O
Netmarble	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
on	O
June	O
26	O
to	O
iOS	B-Application
and	O
Android	B-Application
systems	I-Application
in	O
over	O
175	O
countries	O
.	O
</s>
<s>
BTS	B-Application
World	I-Application
is	O
a	O
visual	O
novel	O
styled	O
video	O
game	O
,	O
where	O
most	O
of	O
the	O
story	O
relies	O
on	O
clicking	O
through	O
interactions	O
between	O
the	O
user	O
and	O
game	O
characters	O
.	O
</s>
<s>
It	O
was	O
reported	O
that	O
BTS	B-Application
World	I-Application
was	O
in	O
development	O
for	O
two	O
years	O
.	O
</s>
<s>
An	O
accompanying	O
soundtrack	O
album	O
,	O
BTS	B-Application
World	I-Application
:	O
Original	O
Soundtrack	O
,	O
was	O
released	O
worldwide	O
on	O
June	O
28	O
,	O
2019	O
.	O
</s>
