<s>
Payday	B-Application
:	I-Application
The	I-Application
Heist	I-Application
is	O
a	O
cooperative	O
first-person	O
shooter	O
developed	O
by	O
Overkill	O
Software	O
and	O
published	O
by	O
Sony	O
Online	O
Entertainment	O
.	O
</s>
<s>
It	O
was	O
released	O
on	O
18	O
October	O
2011	O
,	O
for	O
PlayStation	B-Operating_System
3	I-Operating_System
in	O
North	O
America	O
and	O
2	O
November	O
in	O
Europe	O
.	O
</s>
<s>
It	O
was	O
released	O
on	O
20	O
October	O
for	O
Windows	B-Application
via	O
Steam	B-Application
.	O
</s>
<s>
The	O
game	O
runs	O
on	O
the	O
Diesel	B-Language
game	I-Language
engine	I-Language
.	O
</s>
<s>
It	O
contains	O
seven	O
different	O
missions	O
(	O
including	O
the	O
free	O
No	O
Mercy	O
downloadable	B-Protocol
content	I-Protocol
(	O
DLC	B-Protocol
)	O
released	O
on	O
25	O
July	O
2012	O
)	O
,	O
with	O
each	O
mission	O
containing	O
random	O
elements	O
which	O
alter	O
the	O
gameplay	O
in	O
subtle	O
ways	O
with	O
the	O
aim	O
of	O
enhancing	O
replayability	O
.	O
</s>
<s>
The	O
Wolf	O
Pack	O
DLC	B-Protocol
was	O
released	O
on	O
PlayStation	B-Operating_System
3	I-Operating_System
and	O
PC	O
in	O
August	O
2012	O
.	O
</s>
<s>
This	O
DLC	B-Protocol
added	O
two	O
heists	O
,	O
additional	O
weapons	O
,	O
increased	O
level	O
cap	O
,	O
and	O
a	O
player	O
upgrade	O
tree	O
.	O
</s>
<s>
In	O
Payday	B-Application
:	I-Application
The	I-Application
Heist	I-Application
,	O
players	O
use	O
a	O
variety	O
of	O
firearms	O
to	O
complete	O
objectives	O
(	O
usually	O
centered	O
around	O
stealing	O
a	O
certain	O
object	O
,	O
person	O
,	O
or	O
a	O
particular	O
amount	O
of	O
money	O
)	O
.	O
</s>
<s>
Overkill	O
Software	O
released	O
a	O
few	O
DLC	B-Protocol
packs	O
;	O
the	O
first	O
one	O
is	O
Wolf	O
Pack	O
,	O
which	O
includes	O
a	O
Nixon	O
mask	O
,	O
new	O
equipment	O
,	O
skills	O
,	O
characters	O
,	O
and	O
heists	O
.	O
</s>
<s>
On	O
25	O
July	O
,	O
the	O
No	O
Mercy	O
Hospital	O
DLC	B-Protocol
was	O
released	O
,	O
establishing	O
a	O
link	O
between	O
Left	B-Application
4	I-Application
Dead	I-Application
and	O
Payday	B-Application
(	O
although	O
this	O
has	O
been	O
stated	O
to	O
be	O
non-canon	O
)	O
.	O
</s>
<s>
This	O
DLC	B-Protocol
included	O
the	O
No	O
Mercy	O
heist	O
as	O
well	O
as	O
the	O
Infected	O
mask	O
set	O
for	O
players	O
with	O
Left	B-Application
4	I-Application
Dead	I-Application
installed	O
on	O
their	O
computers	O
.	O
</s>
<s>
Payday	B-Application
:	I-Application
The	I-Application
Heist	I-Application
was	O
free	O
on	O
Steam	B-Application
for	O
24	O
hours	O
in	O
October	O
2014	O
.	O
</s>
<s>
Payday	B-Application
:	I-Application
The	I-Application
Heist	I-Application
received	O
"	O
mixed	O
or	O
average	O
"	O
reviews	O
for	O
PlayStation	B-Operating_System
3	I-Operating_System
and	O
"	O
generally	O
favorable	O
"	O
reviews	O
for	O
Microsoft	B-Application
Windows	I-Application
,	O
according	O
to	O
review	O
aggregator	O
Metacritic	O
.	O
</s>
<s>
As	O
of	O
October	O
2012	O
,	O
Payday	B-Application
:	I-Application
The	I-Application
Heist	I-Application
sold	O
over	O
700,000	O
copies	O
.	O
</s>
<s>
Also	O
,	O
as	O
of	O
November	O
2014	O
,	O
Payday	B-Application
:	I-Application
The	I-Application
Heist	I-Application
and	O
Payday	B-Application
2	I-Application
together	O
have	O
sold	O
more	O
than	O
9	O
million	O
units	O
.	O
</s>
<s>
A	O
sequel	O
entitled	O
Payday	B-Application
2	I-Application
was	O
released	O
on	O
13	O
August	O
2013	O
,	O
via	O
Steam	B-Application
for	O
PC	O
,	O
and	O
from	O
13	O
–	O
16	O
August	O
for	O
PlayStation	B-Operating_System
3	I-Operating_System
and	O
Xbox	B-Operating_System
360	I-Operating_System
.	O
</s>
<s>
In	O
the	O
following	O
years	O
,	O
the	O
Payday	B-Application
:	I-Application
The	I-Application
Heist	I-Application
maps	O
have	O
been	O
added	O
to	O
Payday	B-Application
2	I-Application
.	O
</s>
<s>
After	O
games	O
company	O
Starbreeze	O
Studios	O
acquired	O
Overkill	O
Software	O
,	O
Payday	B-Application
3	I-Application
was	O
planned	O
.	O
</s>
<s>
Following	O
Starbreeze	O
's	O
restructuring	O
plan	O
due	O
to	O
financial	O
difficulties	O
in	O
2018	O
,	O
Starbreeze	O
has	O
stated	O
that	O
they	O
plan	O
to	O
release	O
Payday	B-Application
3	I-Application
by	O
2023	O
.	O
</s>
