<s>
Dead	B-Application
Trigger	I-Application
is	O
a	O
zombie-themed	O
video	O
game	O
developed	O
and	O
published	O
by	O
Madfinger	O
Games	O
.	O
</s>
<s>
It	O
was	O
released	O
in	O
June	O
2012	O
for	O
iOS	B-Application
and	O
Android	B-Application
mobile	I-Application
devices	O
.	O
</s>
<s>
A	O
sequel	O
,	O
Dead	B-Application
Trigger	I-Application
2	I-Application
,	O
was	O
released	O
in	O
2013	O
.	O
</s>
<s>
Dead	B-Application
Trigger	I-Application
includes	O
two	O
forms	O
of	O
currency	O
:	O
cash	O
and	O
gold	O
.	O
</s>
<s>
Cash	O
is	O
earned	O
in	O
missions	O
,	O
by	O
dismembering	O
zombies	B-Application
,	O
collecting	O
cash	O
briefcases	O
,	O
and	O
completing	O
objectives	O
.	O
</s>
<s>
Dead	B-Application
Trigger	I-Application
offers	O
pistols	O
,	O
rifles	O
,	O
shotguns	O
,	O
machine	O
guns	O
,	O
and	O
melee	O
weapons	O
.	O
</s>
<s>
Dead	B-Application
Trigger	I-Application
offers	O
a	O
basic	O
progression	O
system	O
where	O
the	O
player	O
gains	O
experience	O
points	O
and	O
can	O
level	O
up	O
,	O
but	O
leveling	O
up	O
only	O
unlocks	O
new	O
weapons	O
and	O
items	O
in	O
the	O
shop	O
.	O
</s>
<s>
All	O
missions	O
fall	O
into	O
several	O
basic	O
types	O
,	O
such	O
as	O
defending	O
doors	O
or	O
killing	O
a	O
certain	O
number	O
of	O
zombies	B-Application
.	O
</s>
<s>
The	O
game	O
started	O
on	O
iOS	B-Application
as	O
a	O
paid	O
app	O
and	O
was	O
later	O
added	O
as	O
a	O
paid	O
app	O
to	O
Android	B-Application
.	O
</s>
<s>
Dead	B-Application
Trigger	I-Application
has	O
had	O
over	O
30	O
million	O
downloads	O
,	O
on	O
all	O
platforms	O
,	O
as	O
of	O
October	O
2013	O
.	O
</s>
<s>
CNET	O
gave	O
Dead	B-Application
Trigger	I-Application
an	O
8.7	O
out	O
of	O
10	O
,	O
praising	O
many	O
gameplay	O
elements	O
but	O
criticizing	O
how	O
long	O
it	O
takes	O
to	O
collect	O
gold	O
without	O
using	O
in-app	O
purchase	O
.	O
</s>
<s>
Modojo	O
gave	O
Dead	B-Application
Trigger	I-Application
a	O
4.5	O
out	O
of	O
5	O
,	O
praising	O
the	O
game	O
's	O
graphics	O
and	O
gameplay	O
but	O
noting	O
the	O
lack	O
of	O
variety	O
as	O
the	O
game	O
goes	O
on	O
.	O
</s>
<s>
During	O
NVIDIA	O
's	O
CES	O
2013	O
press	O
conference	O
Dead	B-Application
Trigger	I-Application
2	I-Application
was	O
revealed	O
,	O
used	O
as	O
a	O
tech	O
demo	O
to	O
demonstrate	O
the	O
power	O
of	O
the	O
upcoming	O
Tegra	O
4	O
.	O
</s>
<s>
Dead	B-Application
Trigger	I-Application
2	I-Application
was	O
released	O
on	O
October	O
23	O
,	O
2013	O
.	O
</s>
<s>
Dead	B-Application
Trigger	I-Application
2	I-Application
has	O
had	O
over	O
100	O
million	O
downloads	O
and	O
continues	O
to	O
be	O
popular	O
.	O
</s>
