<s>
Rusty	B-Protocol
Hearts	I-Protocol
was	O
a	O
free-to-play	O
MMORPG	B-Protocol
video	O
game	O
developed	O
by	O
Stairway	O
Games	O
and	O
published	O
by	O
Windysoft	O
in	O
Korea	O
,	O
Perfect	O
World	O
Entertainment	O
in	O
North	O
America	O
,	O
Sega	O
in	O
Japan	O
and	O
Xunlei	B-Protocol
Games	O
in	O
China	O
.	O
</s>
<s>
Both	O
Leila	O
and	O
Edgar	O
were	O
later	O
made	O
free	O
and	O
can	O
be	O
created	O
via	O
the	O
character	O
selection	O
screen	O
when	O
the	O
Rusty	B-Protocol
Hearts	I-Protocol
Reborn	O
expansion	O
pack	O
was	O
released	O
.	O
</s>
<s>
For	O
instance	O
,	O
unlike	O
the	O
first	O
three	O
premium	O
characters	O
,	O
Leila	O
Vergerius	O
is	O
initially	O
free-to-play	O
,	O
but	O
to	O
obtain	O
her	O
,	O
the	O
player	O
's	O
account	O
must	O
be	O
connected	O
to	O
Facebook	B-Application
.	I-Application
</s>
<s>
On	O
29	O
July	O
2014	O
,	O
Perfect	O
World	O
Entertainment	O
announced	O
the	O
sunsetting	B-Application
of	O
Rusty	B-Protocol
Hearts	I-Protocol
.	O
</s>
