<s>
Shadow	B-Application
Era	I-Application
(	O
also	O
known	O
as	O
SE	O
)	O
is	O
a	O
free	O
online	O
digital	B-Application
collectible	I-Application
card	I-Application
game	I-Application
created	O
by	O
Vietnamese	O
developer	O
Wulven	O
Studios	O
.	O
</s>
<s>
Cross	B-Operating_System
platform	I-Operating_System
gameplay	O
is	O
central	O
to	O
the	O
digital	O
version	O
's	O
design	O
and	O
it	O
is	O
supported	O
on	O
PC	O
,	O
Mac	B-Application
,	O
iOS	B-Application
,	O
and	O
Android	B-Application
.	O
</s>
<s>
The	O
game	O
Shadow	B-Application
Era	I-Application
is	O
currently	O
played	O
between	O
two	O
players	O
.	O
</s>
<s>
Shadow	B-Application
Era	I-Application
currently	O
consists	O
of	O
5	O
in-game	O
sets	O
:	O
Call	O
of	O
the	O
Crystals	O
,	O
Dark	O
Prophecies	O
,	O
Shattered	O
Fates	O
,	O
Lost	O
Lands	O
Part	O
1	O
,	O
and	O
Campaigns	O
.	O
</s>
<s>
Shadow	B-Application
Era	I-Application
uses	O
a	O
Resource	O
system	O
to	O
cover	O
the	O
summoning	O
cost	O
of	O
every	O
card	O
.	O
</s>
<s>
Guilds	O
are	O
a	O
growing	O
and	O
constantly	O
evolving	O
part	O
of	O
Shadow	B-Application
Era	I-Application
.	O
</s>
<s>
Popular	O
apps	O
on	O
the	O
iOS	B-Application
App	O
Store	O
and	O
the	O
Android	B-Application
Google	I-Application
Play	O
Store	O
are	O
used	O
for	O
communication	O
between	O
members	O
,	O
including	O
Telegram	O
and	O
QQ	O
.	O
</s>
<s>
Guilds	O
in	O
Shadow	B-Application
Era	I-Application
are	O
free	O
to	O
create	O
,	O
and	O
tend	O
to	O
congregate	O
on	O
their	O
chosen	O
communications	O
app	O
.	O
</s>
<s>
The	O
guilds	O
in	O
Shadow	B-Application
Era	I-Application
are	O
simply	O
groups	O
of	O
players	O
who	O
wish	O
to	O
excel	O
in	O
the	O
game	O
and	O
formed	O
cooperative	O
and	O
competitive	O
teams	O
to	O
do	O
so	O
.	O
</s>
<s>
The	O
guild	O
list	O
will	O
grow	O
,	O
shrink	O
,	O
and	O
change	O
,	O
but	O
the	O
idea	O
stays	O
the	O
same	O
:	O
groups	O
of	O
players	O
helping	O
each	O
other	O
become	O
better	O
at	O
Shadow	B-Application
Era	I-Application
and	O
enjoy	O
the	O
game	O
together	O
.	O
</s>
<s>
Critical	O
reception	O
for	O
Shadow	B-Application
Era	I-Application
has	O
been	O
positive	O
and	O
it	O
currently	O
holds	O
a	O
ranking	O
of	O
90	O
on	O
Metacritic	O
(	O
based	O
on	O
5	O
reviews	O
)	O
and	O
90%	O
on	O
GameRankings	O
(	O
based	O
on	O
2	O
reviews	O
)	O
.	O
</s>
<s>
AppSpy	O
rated	O
the	O
game	O
as	O
4	O
out	O
of	O
5	O
,	O
writing	O
"	O
Shadow	B-Application
Era	I-Application
is	O
a	O
great	O
first	O
step	O
for	O
what	O
could	O
be	O
a	O
fantastic	O
TCG	O
for	O
iOS	B-Application
devices	O
-	O
there	O
's	O
a	O
lot	O
of	O
room	O
for	O
improvement	O
,	O
but	O
the	O
core	O
gameplay	O
is	O
worth	O
checking	O
out	O
if	O
you	O
're	O
a	O
fan	O
of	O
these	O
sorts	O
of	O
games.	O
"	O
</s>
