<s>
Killzone	B-Application
is	O
a	O
series	O
of	O
first-person	O
shooter	O
video	O
games	O
for	O
Sony	O
Interactive	O
Entertainment	O
's	O
(	O
SIE	O
)	O
video	B-Device
game	I-Device
consoles	I-Device
.	O
</s>
<s>
The	O
main	O
series	O
and	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
(	O
PSP	B-Operating_System
)	O
installment	O
were	O
developed	O
by	O
Guerrilla	O
Games	O
,	O
a	O
subsidiary	O
of	O
SIE	O
,	O
and	O
the	O
PlayStation	B-Device
Vita	I-Device
installment	O
was	O
developed	O
by	O
Guerrilla	O
Cambridge	O
.	O
</s>
<s>
Killzone	B-Application
consists	O
of	O
six	O
games	O
,	O
beginning	O
on	O
the	O
PlayStation	B-Device
2	I-Device
in	O
November	O
2004	O
with	O
Killzone	B-Application
,	O
and	O
continued	O
on	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
in	O
October	O
2006	O
with	O
Killzone	B-Application
:	I-Application
Liberation	I-Application
.	O
</s>
<s>
Killzone	B-Application
2	I-Application
was	O
released	O
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
in	O
February	O
2009	O
,	O
and	O
Killzone	B-Application
3	I-Application
was	O
released	O
in	O
February	O
2011	O
,	O
also	O
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
.	O
</s>
<s>
Killzone	B-Application
:	I-Application
Mercenary	I-Application
was	O
released	O
for	O
the	O
PlayStation	B-Device
Vita	I-Device
in	O
September	O
2013	O
,	O
followed	O
by	O
Killzone	B-Application
:	I-Application
Shadow	I-Application
Fall	I-Application
,	O
a	O
launch	O
title	O
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
,	O
in	O
November	O
2013	O
.	O
</s>
<s>
The	O
series	O
is	O
set	O
in	O
the	O
24th	O
century	O
,	O
showing	O
the	O
galactic	O
war	O
between	O
the	O
Interplanetary	O
Strategic	O
Alliance	O
(	O
ISA	O
)	O
and	O
the	O
Helghan	B-Application
Empire	O
.	O
</s>
<s>
The	O
Killzone	B-Application
series	O
follows	O
the	O
continuous	O
war	O
between	O
the	O
ISA	O
and	O
Helghast	B-Application
taking	O
place	O
on	O
both	O
ISA	O
Earth	O
colonies	O
and	O
the	O
planet	O
Helghan	B-Application
,	O
the	O
home	O
planet	O
of	O
the	O
Helghast	B-Application
.	O
</s>
<s>
Jan	O
Templar	O
(	O
Killzone	B-Application
and	O
Killzone	B-Application
:	I-Application
Liberation	I-Application
)	O
,	O
Sgt	O
.	O
</s>
<s>
Tomas	O
"	O
Sev	O
"	O
Sevchenko	O
(	O
Killzone	B-Application
2	I-Application
and	O
Killzone	B-Application
3	I-Application
)	O
,	O
mercenary	B-Application
Arran	O
Danner	O
(	O
Killzone	B-Application
:	I-Application
Mercenary	I-Application
)	O
,	O
and	O
Shadow	O
Marshal	O
Lucas	O
Kellan	O
(	O
Killzone	B-Application
:	I-Application
Shadow	I-Application
Fall	I-Application
)	O
.	O
</s>
<s>
The	O
main	O
antagonist	O
was	O
originally	O
Helghast	B-Application
Autarch	O
Scolar	O
Visari	O
;	O
his	O
death	O
in	O
Killzone	B-Application
2	I-Application
brought	O
about	O
the	O
rise	O
of	O
two	O
new	O
antagonists	O
and	O
the	O
hopeful	O
heirs	O
to	O
Visari	O
's	O
throne	O
in	O
Killzone	B-Application
3	I-Application
:	O
Jorhan	O
Stahl	O
and	O
Admiral	O
Orlock	O
.	O
</s>
<s>
After	O
Orlock	O
's	O
death	O
and	O
the	O
unknown	O
details	O
of	O
Stahl	O
's	O
death	O
and	O
the	O
destruction	O
of	O
Helghan	B-Application
,	O
now	O
covered	O
in	O
petrusite	O
,	O
the	O
Helghast	B-Application
now	O
live	O
on	O
Vekta	B-Application
with	O
a	O
giant	O
wall	O
dividing	O
them	O
from	O
the	O
Vektans	O
.	O
</s>
<s>
"	O
The	O
Black	O
Hand	O
"	O
,	O
a	O
Helghast	B-Application
paramilitary	O
terrorist	O
group	O
,	O
was	O
formed	O
under	O
Vladko	O
Tyran	O
,	O
who	O
became	O
an	O
antagonist	O
,	O
along	O
with	O
Lady	O
Hera	O
Visari	O
(	O
Scolar	O
Visari	O
's	O
daughter	O
)	O
who	O
has	O
inherited	O
her	O
father	O
's	O
throne	O
.	O
</s>
<s>
By	O
the	O
end	O
of	O
Killzone	B-Application
:	I-Application
Shadow	I-Application
Fall	I-Application
,	O
it	O
is	O
revealed	O
that	O
the	O
main	O
antagonist	O
is	O
Stahl	O
,	O
who	O
managed	O
to	O
survive	O
the	O
events	O
of	O
Killzone	B-Application
3	I-Application
,	O
but	O
is	O
dispatched	O
by	O
Vektan	O
Security	O
Agency	O
director	O
Thomas	O
Sinclair	O
.	O
</s>
<s>
Killzone	B-Application
,	O
Killzone	B-Application
2	I-Application
,	O
Killzone	B-Application
3	I-Application
,	O
Killzone	B-Application
:	I-Application
Mercenary	I-Application
,	O
and	O
Killzone	B-Application
:	I-Application
Shadow	I-Application
Fall	I-Application
are	O
first-person	O
shooters	O
.	O
</s>
<s>
Killzone	B-Application
:	I-Application
Liberation	I-Application
is	O
presented	O
as	O
an	O
isometric	O
twin	O
sticks	O
shooter	O
.	O
</s>
<s>
The	O
games	O
were	O
developed	O
by	O
Guerrilla	O
Games	O
,	O
except	O
for	O
Killzone	B-Application
:	I-Application
Mercenary	I-Application
,	O
which	O
was	O
developed	O
by	O
Guerrilla	O
Games	O
 '	O
sister	O
studio	O
,	O
Guerrilla	O
Cambridge	O
,	O
and	O
published	O
by	O
Sony	O
.	O
</s>
<s>
In	O
Killzone	B-Application
3	I-Application
,	O
players	O
can	O
carry	O
up	O
to	O
three	O
weapons	O
,	O
with	O
the	O
third	O
weapon	O
spot	O
reserved	O
for	O
heavy	O
weapons	O
(	O
e.g.	O
</s>
<s>
Online	O
competitive	O
multi-player	O
features	O
up	O
to	O
16	O
players	O
in	O
Killzone	B-Application
,	O
32	O
players	O
in	O
Killzone	B-Application
2	I-Application
,	O
24	O
players	O
in	O
Killzone	B-Application
3	I-Application
and	O
Shadow	B-Application
Fall	I-Application
,	O
and	O
up	O
to	O
8	O
players	O
in	O
Mercenary	B-Application
.	O
</s>
<s>
There	O
is	O
an	O
objective	O
based	O
rotation	O
mode	O
,	O
called	O
Warzone	O
(	O
Killzone	B-Application
2	I-Application
,	O
Killzone	B-Application
3	I-Application
,	O
and	O
Shadow	B-Application
Fall	I-Application
)	O
,	O
where	O
players	O
play	O
all	O
game	O
modes	O
(	O
2	O
rounds	O
of	O
Assassination	O
,	O
1	O
round	O
of	O
Body	O
Count	O
,	O
1	O
round	O
of	O
Capture	O
and	O
Hold	O
,	O
2	O
rounds	O
of	O
Search	O
and	O
Destroy	O
,	O
and	O
1	O
round	O
of	O
Search	O
and	O
Retrieve	O
)	O
one	O
after	O
the	O
other	O
until	O
all	O
modes	O
have	O
been	O
played	O
.	O
</s>
<s>
Shadow	B-Application
Fall	I-Application
game	O
modes	O
in	O
Warzone	O
are	O
slightly	O
different	O
.	O
</s>
<s>
Operations	O
is	O
a	O
new	O
mode	O
for	O
Killzone	B-Application
3	I-Application
which	O
is	O
a	O
cinematic	O
mini-campaign	O
for	O
the	O
multiplayer	O
mode	O
.	O
</s>
<s>
Killzone	B-Application
3	I-Application
features	O
a	O
classic	O
Team	O
Deathmatch	O
mode	O
called	O
Guerilla	O
Warfare	O
.	O
</s>
<s>
Shadow	B-Application
Fall	I-Application
also	O
has	O
a	O
team	O
deathmatch	O
,	O
simply	O
titled	O
Team	O
Deathmatch	O
.	O
</s>
<s>
Killzone	B-Application
and	O
Killzone	B-Application
3	I-Application
are	O
the	O
only	O
games	O
in	O
the	O
series	O
to	O
feature	O
offline	O
split-screen	O
co-op	O
for	O
two	O
players	O
,	O
while	O
Killzone	B-Application
is	O
the	O
only	O
game	O
in	O
the	O
series	O
to	O
feature	O
offline	O
split-screen	O
multiplayer	O
in	O
the	O
Botzone	O
mode	O
(	O
Botzone	O
allows	O
players	O
to	O
play	O
against	O
AI	B-Application
bots	O
and	O
is	O
present	O
in	O
each	O
installment	O
)	O
.	O
</s>
<s>
Liberation	B-Application
features	O
an	O
online	O
co-op	O
campaign	O
as	O
well	O
as	O
a	O
multiplayer	O
mode	O
that	O
supports	O
up	O
to	O
6	O
players	O
in	O
ad-hoc	B-General_Concept
and	O
up	O
to	O
8	O
players	O
on	O
infrastructure	O
.	O
</s>
<s>
Shadow	B-Application
Fall	I-Application
features	O
an	O
online	O
co-op	O
survival	O
mode	O
for	O
up	O
to	O
4	O
players	O
;	O
however	O
,	O
it	O
can	O
only	O
be	O
accessed	O
by	O
purchasing	O
the	O
Season	O
Pass	O
.	O
</s>
<s>
Killzone	B-Application
was	O
released	O
for	O
the	O
PlayStation	B-Device
2	I-Device
in	O
2004	O
.	O
</s>
<s>
The	O
game	O
is	O
set	O
in	O
2357	O
,	O
where	O
the	O
Helghast	B-Application
Empire	O
has	O
recovered	O
from	O
its	O
defeat	O
in	O
the	O
First	O
Extrasolar	O
War	O
and	O
launched	O
a	O
blitzkrieg	B-Language
against	O
the	O
outer	O
Interplanetary	O
Strategic	O
Alliance	O
(	O
ISA	O
)	O
colony	O
planet	O
Vekta	B-Application
.	O
</s>
<s>
Vekta	B-Application
's	O
orbital	O
Strategic	O
Defense	O
(	O
S.D.	O
)	O
</s>
<s>
platforms	O
failed	O
during	O
the	O
initial	O
assault	O
,	O
allowing	O
the	O
Helghast	B-Application
to	O
land	O
swarms	O
of	O
soldiers	O
onto	O
the	O
surface	O
and	O
making	O
it	O
difficult	O
for	O
the	O
outnumbered	O
ISA	O
forces	O
.	O
</s>
<s>
Templar	O
meets	O
other	O
characters	O
who	O
assist	O
him	O
such	O
as	O
Shadow	O
Marshal	O
Luger	O
(	O
a	O
female	O
special	O
operations	O
assassin	O
)	O
,	O
a	O
heavy	O
weapons	O
specialist	O
Sergeant	O
Rico	O
Velasquez	O
(	O
a	O
Helghast-hating	O
soldier	O
with	O
an	O
itchy	O
trigger	O
finger	O
)	O
,	O
and	O
Colonel	O
Hakha	O
,	O
a	O
half-Helghast	O
,	O
half-Human	O
spy	O
.	O
</s>
<s>
Killzone	B-Application
2	I-Application
was	O
released	O
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
in	O
2009	O
.	O
</s>
<s>
Killzone	B-Application
2	I-Application
follows	O
the	O
events	O
of	O
Killzone	B-Application
and	O
Killzone	B-Application
:	I-Application
Liberation	I-Application
,	O
and	O
is	O
set	O
on	O
the	O
planet	O
Helghan	B-Application
,	O
the	O
home	O
world	O
of	O
the	O
Helghast	B-Application
who	O
invaded	O
an	O
Interplanetary	O
Strategic	O
Alliance	O
(	O
ISA	O
)	O
colony	O
.	O
</s>
<s>
Two	O
years	O
after	O
the	O
Helghast	B-Application
assault	O
on	O
Vekta	B-Application
,	O
the	O
ISA	O
has	O
launched	O
an	O
assault	O
on	O
the	O
enemy	O
's	O
homeworld	O
of	O
Helghan	B-Application
.	O
</s>
<s>
The	O
ISA	O
goal	O
is	O
to	O
capture	O
the	O
Helghast	B-Application
leader	O
,	O
Scolar	O
Visari	O
and	O
bring	O
the	O
Helghast	B-Application
war	O
machine	O
to	O
a	O
halt	O
.	O
</s>
<s>
The	O
main	O
protagonists	O
is	O
Sergeant	O
Tomas	O
"	O
Sev	O
"	O
Sevchenko	O
,	O
a	O
battle-hardened	O
veteran	O
of	O
the	O
special	O
forces	O
unit	O
the	O
"	O
Legion	O
"	O
assigned	O
to	O
Alpha	O
team	O
,	O
who	O
go	O
on	O
a	O
mission	O
to	O
take	O
out	O
the	O
Helghast	B-Application
threat	O
.	O
</s>
<s>
Captain	O
Jan	O
Templar	O
has	O
been	O
promoted	O
to	O
Colonel	O
and	O
is	O
the	O
Fleet	O
Commander	O
of	O
the	O
New	O
Sun	O
,	O
a	O
Cruiser	O
airship	O
set	O
up	O
in	O
the	O
clouds	O
of	O
Helghan	B-Application
over	O
its	O
capital	O
city	O
,	O
Pyrrhus	O
,	O
preparing	O
for	O
a	O
final	O
attack	O
.	O
</s>
<s>
During	O
the	O
invasion	O
of	O
Helghan	B-Application
,	O
Sev	O
's	O
unit	O
is	O
deployed	O
behind	O
enemy	O
lines	O
to	O
assist	O
the	O
main	O
invasion	O
force	O
.	O
</s>
<s>
Tasked	O
with	O
securing	O
the	O
enemy	O
capital	O
of	O
Pyrrhus	O
,	O
Helghan	B-Application
's	O
first	O
true	O
city	O
,	O
the	O
team	O
discovers	O
that	O
the	O
Helghast	B-Application
are	O
a	O
more	O
formidable	O
enemy	O
on	O
their	O
home	O
planet	O
.	O
</s>
<s>
They	O
adjusted	O
to	O
Helghan	B-Application
's	O
hostile	O
conditions	O
and	O
have	O
harnessed	O
the	O
power	O
of	O
the	O
lightning	O
storms	O
that	O
always	O
occur	O
on	O
Helghan	B-Application
which	O
they	O
can	O
use	O
against	O
the	O
ISA	O
.	O
</s>
<s>
A	O
cold	O
,	O
barren	O
,	O
unforgiving	O
world	O
,	O
Helghan	B-Application
provides	O
a	O
ready	O
defense	O
with	O
thick	O
,	O
acidic	O
air	O
,	O
dust	O
clouds	O
,	O
and	O
violent	O
surgical	O
lightning	O
storms	O
.	O
</s>
<s>
Killzone	B-Application
3	I-Application
was	O
released	O
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
in	O
2011	O
and	O
is	O
the	O
only	O
game	O
in	O
the	O
series	O
to	O
feature	O
a	O
special	O
edition	O
support	O
,	O
the	O
PlayStation	B-Device
Move	I-Device
,	O
and	O
utilize	O
3D	B-Algorithm
gaming	O
.	O
</s>
<s>
It	O
follows	O
the	O
events	O
of	O
Killzone	B-Application
2	I-Application
.	O
</s>
<s>
Visari	O
,	O
the	O
leader	O
of	O
the	O
Helghast	B-Application
,	O
is	O
gone	O
but	O
the	O
war	O
is	O
far	O
from	O
over	O
.	O
</s>
<s>
Helghast	B-Application
forces	O
have	O
mounted	O
a	O
devastating	O
counterattack	O
,	O
prompting	O
the	O
ISA	O
(	O
Interplanetary	O
Strategic	O
Alliance	O
)	O
evacuation	O
of	O
planet	O
Helghan	B-Application
.	O
</s>
<s>
As	O
new	O
Helghast	B-Application
battalions	O
appear	O
,	O
armed	O
with	O
more	O
powerful	O
weapons	O
,	O
ISA	O
forces	O
find	O
themselves	O
outmanned	O
,	O
outgunned	O
and	O
surrounded	O
.	O
</s>
<s>
Two	O
new	O
antagonists	O
,	O
Jorhan	O
Stahl	O
and	O
Admiral	O
Orlock	O
,	O
both	O
want	O
to	O
become	O
the	O
new	O
Autarch	O
of	O
Helghan	B-Application
.	O
</s>
<s>
Admiral	O
Orlock	O
eventually	O
becomes	O
the	O
new	O
Autarch	O
due	O
to	O
a	O
circumstantial	O
decision	O
by	O
the	O
Helghan	B-Application
High	O
Council	O
.	O
</s>
<s>
In	O
a	O
final	O
confrontation	O
between	O
Stahl	O
and	O
Orlock	O
,	O
Stahl	O
murders	O
Orlock	O
,	O
however	O
,	O
the	O
planet	O
Helghan	B-Application
and	O
Stahls	O
ship	O
is	O
nuked	O
by	O
Sev	O
and	O
his	O
team	O
.	O
</s>
<s>
However	O
,	O
it	O
revealed	O
that	O
a	O
ship	O
crash	O
landed	O
on	O
Helghan	B-Application
and	O
is	O
greeted	O
by	O
two	O
Helghan	B-Application
soldiers	O
.	O
</s>
<s>
Killzone	B-Application
:	I-Application
Shadow	I-Application
Fall	I-Application
was	O
released	O
for	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
in	O
November	O
2013	O
.	O
</s>
<s>
The	O
game	O
is	O
set	O
nearly	O
30	O
years	O
after	O
the	O
events	O
of	O
Killzone	B-Application
3	I-Application
.	O
</s>
<s>
Vektans	O
live	O
side	O
by	O
side	O
with	O
Helghans	B-Application
,	O
though	O
their	O
portions	O
of	O
the	O
city	O
are	O
divided	O
by	O
a	O
massive	O
wall	O
that	O
is	O
known	O
as	O
"	O
The	O
Wall	O
"	O
.	O
</s>
<s>
Helghan	B-Application
citizens	O
are	O
placed	O
and	O
take	O
refuge	O
inside	O
of	O
Vekta	B-Application
,	O
becoming	O
known	O
as	O
Traitors	O
,	O
since	O
they	O
left	O
their	O
side	O
of	O
The	O
Wall	O
,	O
which	O
was	O
claimed	O
as	O
New	O
Helghan	B-Application
.	O
</s>
<s>
The	O
protagonist	O
,	O
Lucas	O
Kellan	O
,	O
is	O
orphaned	O
when	O
he	O
and	O
his	O
father	O
,	O
Michael	O
,	O
are	O
spotted	O
with	O
Thomas	O
Sinclair	O
,	O
a	O
Shadow	O
Marshal	O
,	O
who	O
attempts	O
to	O
lead	O
them	O
out	O
of	O
the	O
side	O
that	O
was	O
being	O
taken	O
by	O
the	O
Helghan	B-Application
forces	O
after	O
the	O
"	O
Terracide	O
"	O
that	O
occurred	O
in	O
Killzone	B-Application
3	I-Application
.	O
</s>
<s>
Kellan	O
's	O
father	O
is	O
shot	O
down	O
by	O
two	O
Helghan	B-Application
soldiers	O
when	O
they	O
are	O
spotted	O
,	O
but	O
Lucas	O
is	O
saved	O
by	O
Sinclair	O
.	O
</s>
<s>
Their	O
main	O
mission	O
is	O
to	O
preserve	O
the	O
peace	O
between	O
the	O
Vektans	O
and	O
Helghast	B-Application
and	O
prevent	O
this	O
from	O
declining	O
.	O
</s>
<s>
During	O
his	O
travels	O
between	O
Vekta	B-Application
and	O
across	O
the	O
Wall	O
into	O
New	O
Helghast	B-Application
as	O
he	O
undertakes	O
missions	O
to	O
deal	O
with	O
possible	O
Helghan	B-Application
threats	O
,	O
he	O
comes	O
to	O
realize	O
that	O
New	O
Helghan	B-Application
is	O
full	O
of	O
civilians	O
who	O
are	O
innocent	O
.	O
</s>
<s>
He	O
also	O
meets	O
a	O
Helghan	B-Application
Intelligence	O
Operative	O
,	O
"	O
Echo	O
"	O
,	O
a	O
half-breed	O
who	O
is	O
Chancellor	O
Visari	O
's	O
daughter	O
.	O
</s>
<s>
Kellan	O
is	O
imprisoned	O
and	O
tortured	O
when	O
he	O
is	O
caught	O
in	O
New	O
Helghast	B-Application
.	O
</s>
<s>
Echo	O
,	O
who	O
survived	O
the	O
impact	O
of	O
the	O
crash	O
,	O
sneaks	O
into	O
Vekta	B-Application
and	O
when	O
Sinclair	O
is	O
giving	O
a	O
speech	O
,	O
she	O
assassinates	O
him	O
.	O
</s>
<s>
Killzone	B-Application
:	I-Application
Liberation	I-Application
was	O
released	O
for	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
in	O
2006	O
.	O
</s>
<s>
In	O
Killzone	B-Application
:	I-Application
Liberation	I-Application
,	O
two	O
months	O
after	O
the	O
events	O
of	O
Killzone	B-Application
,	O
the	O
Helghast	B-Application
have	O
been	O
dealt	O
a	O
hefty	O
blow	O
from	O
the	O
last	O
game	O
,	O
but	O
the	O
war	O
is	O
far	O
from	O
over	O
.	O
</s>
<s>
The	O
enemy	O
controls	O
large	O
parts	O
of	O
the	O
planet	O
Vekta	B-Application
,	O
and	O
though	O
the	O
ISA	O
armies	O
are	O
fighting	O
hard	O
,	O
they	O
are	O
losing	O
ground	O
.	O
</s>
<s>
The	O
rules	O
of	O
war	O
have	O
been	O
cast	O
aside	O
with	O
the	O
sadistic	O
Helghast	B-Application
General	O
,	O
Armin	O
Metrac	O
,	O
employed	O
by	O
the	O
Helghast	B-Application
Emperor	O
Scolar	O
Visari	O
to	O
use	O
brutal	O
measures	O
in	O
order	O
to	O
seize	O
the	O
initiative	O
and	O
strengthen	O
his	O
position	O
further	O
.	O
</s>
<s>
There	O
are	O
5	O
"	O
chapters	O
"	O
with	O
4	O
levels	O
in	O
which	O
players	O
eliminate	O
the	O
Helghast	B-Application
resistance	O
(	O
The	O
fifth	O
and	O
final	O
chapter	O
was	O
made	O
available	O
to	O
download	O
)	O
.	O
</s>
<s>
Killzone	B-Application
:	I-Application
Mercenary	I-Application
was	O
released	O
for	O
the	O
PlayStation	B-Device
Vita	I-Device
in	O
2013	O
.	O
</s>
<s>
In	O
the	O
game	O
players	O
assume	O
the	O
role	O
of	O
a	O
mercenary	B-Application
who	O
fights	O
alongside	O
either	O
the	O
ISA	O
or	O
Helghast	B-Application
forces	O
depending	O
on	O
which	O
team	O
hires	O
them	O
.	O
</s>
<s>
Killzone	B-Application
Trilogy	O
is	O
a	O
collection	O
of	O
Killzone	B-Application
,	O
Killzone	B-Application
2	I-Application
,	O
and	O
Killzone	B-Application
3	I-Application
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
under	O
Sony	O
's	O
PlayStation	B-Device
Collections	O
line	O
.	O
</s>
<s>
The	O
original	O
Killzone	B-Application
has	O
been	O
remastered	O
in	O
HD	O
to	O
support	O
720p	O
resolution	O
and	O
Trophies	O
.	O
</s>
<s>
The	O
collection	O
also	O
includes	O
all	O
DLC	O
maps	O
for	O
Killzone	B-Application
2	I-Application
and	O
Killzone	B-Application
3	I-Application
.	O
</s>
<s>
Killzone	B-Application
:	O
Ascendancy	O
,	O
a	O
novel	O
by	O
Sam	O
Bradbury	O
,	O
was	O
released	O
in	O
April	O
2011	O
.	O
</s>
<s>
It	O
is	O
a	O
novelization	O
of	O
Killzone	B-Application
3	I-Application
.	O
</s>
<s>
Killzone	B-Application
Intercept	O
is	O
a	O
14-minute	O
fan	O
film	O
set	O
in	O
the	O
ISA	O
evacutation	O
of	O
Helghan	B-Application
.	O
</s>
<s>
The	O
film	O
short	O
has	O
received	O
positive	O
feedback	O
,	O
and	O
was	O
featured	O
on	O
the	O
PlayStation	B-Device
blog	O
.	O
</s>
<s>
The	O
first	O
Killzone	B-Application
received	O
mixed	O
to	O
positive	O
reviews	O
from	O
magazines	O
and	O
websites	O
.	O
</s>
<s>
PSM	O
stated	O
that	O
Killzone	B-Application
is	O
"	O
Graphically	O
stunning	O
and	O
hits	O
the	O
mark	O
in	O
so	O
many	O
ways	O
,	O
it	O
's	O
baffling	O
;	O
they	O
promised	O
us	O
we	O
'd	O
experience	O
future	O
war	O
,	O
and	O
we	O
have	O
...	O
and	O
come	O
away	O
shaking.	O
"	O
</s>
<s>
Other	O
reviewers	O
cited	O
technical	O
problems	O
with	O
Killzone	B-Application
,	O
including	O
inconsistent	O
AI	B-Application
,	O
occasional	O
bugs	O
,	O
frame-rate	O
issues	O
,	O
distracting	O
graphical	O
glitches	O
,	O
repetition	O
of	O
the	O
same	O
voices	O
,	O
short	O
draw	O
distance	O
,	O
and	O
an	O
awkward	O
control	O
system	O
.	O
</s>
<s>
Sarcastic	O
Gamer	O
's	O
"	O
How	O
to	O
Kill	O
a	O
Brand	O
"	O
(	O
a	O
parody	O
of	O
How	O
to	O
Save	O
a	O
Life	O
)	O
criticized	O
Killzone	B-Application
,	O
saying	O
it	O
did	O
n't	O
deserve	O
a	O
sequel	O
.	O
</s>
<s>
Killzone	B-Application
:	I-Application
Liberation	I-Application
received	O
positive	O
reviews	O
,	O
earning	O
IGN	O
's	O
award	O
for	O
Best	O
PSP	B-Operating_System
Offline	O
Multiplayer	O
Game	O
of	O
2006	O
.	O
</s>
<s>
Killzone	B-Application
2	I-Application
received	O
critical	O
acclaim	O
upon	O
release	O
with	O
a	O
GameRankings	O
score	O
of	O
90.56	O
%	O
,	O
and	O
a	O
Metacritic	O
score	O
of	O
91/100	O
.	O
</s>
<s>
Killzone	B-Application
3	I-Application
received	O
positive	O
reviews	O
upon	O
release	O
with	O
a	O
GameRankings	O
score	O
of	O
86.38	O
%	O
,	O
and	O
a	O
Metacritic	O
score	O
of	O
84/100	O
.	O
</s>
<s>
The	O
first	O
English	O
review	O
of	O
the	O
game	O
was	O
published	O
by	O
PlayStation	B-Device
Official	O
Magazine	O
(	O
UK	O
)	O
,	O
which	O
gave	O
the	O
game	O
a	O
9/10	O
.	O
</s>
<s>
The	O
review	O
stated	O
"	O
on	O
a	O
visual	O
level	O
,	O
as	O
a	O
3D	B-Algorithm
breakthrough	O
,	O
this	O
feels	O
like	O
a	O
watershed	O
moment	O
in	O
a	O
revolution	O
affecting	O
all	O
of	O
gaming	O
"	O
.	O
</s>
<s>
The	O
review	O
also	O
stated	O
on	O
gameplay	O
terms	O
,	O
"	O
Black	B-Application
Ops	I-Application
is	O
the	O
only	O
first-person	O
shooter	O
on	O
PlayStation	B-Operating_System
3	I-Operating_System
that	O
can	O
match	O
this	O
"	O
.	O
</s>
<s>
Killzone	B-Application
:	I-Application
Mercenary	I-Application
received	O
positive	O
reviews	O
upon	O
release	O
,	O
with	O
critics	O
praising	O
the	O
quality	O
of	O
the	O
title	O
compared	O
to	O
previous	O
shooters	O
on	O
the	O
Vita	O
.	O
</s>
<s>
Killzone	B-Application
:	I-Application
Shadow	I-Application
Fall	I-Application
received	O
mixed-to-positive	O
reviews	O
,	O
with	O
a	O
GameRankings	O
score	O
of	O
73.41	O
%	O
and	O
a	O
Metacritic	O
score	O
of	O
73/100	O
,	O
making	O
it	O
the	O
second-lowest	O
rated	O
game	O
in	O
the	O
series	O
on	O
both	O
GameRankings	O
and	O
Metacritic	O
.	O
</s>
<s>
Praise	O
was	O
given	O
to	O
the	O
game	O
's	O
visual	O
presentation	O
and	O
multiplayer	O
modes	O
,	O
while	O
criticism	O
was	O
given	O
to	O
the	O
single-player	O
story	O
and	O
A.I.	B-Application
</s>
