<s>
Stormfall	B-Protocol
:	I-Protocol
Age	I-Protocol
of	I-Protocol
War	I-Protocol
is	O
a	O
social	O
browser	B-Protocol
game	I-Protocol
created	O
in	O
2012	O
by	O
Plarium	O
and	O
then	O
moved	O
to	O
Facebook	B-Application
in	O
November	O
.	O
</s>
<s>
This	O
game	O
franchise	O
builds	O
on	O
the	O
success	O
of	O
Plarium	O
's	O
earlier	O
Facebook	B-Application
titles	O
in	O
the	O
crowded	O
web-based	O
PvP	O
strategy	B-Application
game	I-Application
market	O
,	O
though	O
a	O
pay-to-win	O
aspect	O
of	O
the	O
game	O
raises	O
concerns	O
.	O
</s>
<s>
Plarium	O
,	O
which	O
has	O
a	O
global	O
registered	O
player	O
base	O
of	O
250	O
million	O
players	O
,	O
introduced	O
Stormfall	O
:	O
Rise	O
of	O
Balur	O
as	O
the	O
sequel	O
to	O
the	O
hugely	O
popular	O
Stormfall	B-Protocol
:	I-Protocol
Age	I-Protocol
of	I-Protocol
War	I-Protocol
.	O
</s>
<s>
Stormfall	B-Protocol
:	I-Protocol
Age	I-Protocol
of	I-Protocol
War	I-Protocol
challenges	O
players	O
to	O
fortify	O
an	O
army	O
and	O
castle	O
within	O
the	O
fictional	O
Kingdom	O
of	O
Darkshine	O
.	O
</s>
<s>
The	O
game	O
has	O
a	O
top-down	O
isometric	B-Application
camera	O
angle	O
and	O
retro	O
style	O
2D	O
graphics	O
.	O
</s>
<s>
The	O
game	O
became	O
one	O
of	O
the	O
twenty	O
fastest-growing	O
games	O
on	O
Facebook	B-Application
globally	O
,	O
according	O
to	O
Julien	O
Codorniou	O
,	O
Facebook	B-Application
's	O
head	O
of	O
European	O
platform	O
partnerships	O
in	O
2013	O
.	O
</s>
<s>
Pete	O
Davison	O
of	O
Adweek	O
called	O
Stormfall	O
"	O
a	O
very	O
solid	O
addition	O
to	O
the	O
growing	O
lineup	O
of	O
mid-core	O
strategy	O
titles	O
on	O
the	O
social	O
network	O
"	O
(	O
referring	O
to	O
Facebook	B-Application
)	O
,	O
and	O
wrote	O
that	O
it	O
"	O
features	O
solid	O
gameplay	O
,	O
reasonable	O
(	O
if	O
slightly	O
inconsistent	O
)	O
presentation	O
and	O
plenty	O
of	O
things	O
to	O
do.	O
"	O
</s>
