<s>
Free	B-General_Concept
look	I-General_Concept
(	O
also	O
known	O
as	O
mouselook	B-General_Concept
)	O
describes	O
the	O
ability	O
to	O
move	O
a	O
mouse	B-Device
,	O
joystick	B-Device
,	O
analogue	B-Device
stick	I-Device
,	O
or	O
D-pad	B-Device
to	O
rotate	O
the	O
player	O
character	O
's	O
view	O
in	O
video	O
games	O
.	O
</s>
<s>
It	O
is	O
almost	O
always	O
used	O
for	O
3D	O
game	O
engines	O
,	O
and	O
has	O
been	O
included	O
on	O
role-playing	O
video	O
games	O
,	O
real-time	O
strategy	O
games	O
,	O
third-person	O
shooters	O
,	O
first-person	O
shooters	O
,	O
racing	O
games	O
,	O
and	O
flight	B-Application
simulators	I-Application
.	O
</s>
<s>
Free	B-General_Concept
look	I-General_Concept
is	O
nearly	O
universal	O
in	O
modern	O
games	O
,	O
but	O
it	O
was	O
one	O
of	O
the	O
significant	O
technical	O
breakthroughs	O
of	O
mid-1990s	O
first-person	O
perspective	O
games	O
.	O
</s>
<s>
Many	O
modern	O
console	O
games	O
dedicate	O
one	O
of	O
the	O
several	O
analogue	B-Device
sticks	I-Device
on	O
the	O
gamepad	B-Device
entirely	O
to	O
rotating	O
the	O
view	O
,	O
where	O
as	O
some	O
older	O
console	O
games	O
,	O
when	O
gamepads	B-Device
usually	O
had	O
fewer	O
or	O
only	O
a	O
single	O
D-pad	B-Device
or	O
analogue	B-Device
stick	I-Device
,	O
had	O
a	O
feature	O
where	O
the	O
single	O
D-pad	B-Device
or	O
analogue	B-Device
stick	I-Device
would	O
move	O
the	O
view	O
instead	O
of	O
the	O
character	O
whilst	O
the	O
player	O
held	O
down	O
another	O
button	O
at	O
the	O
same	O
time	O
,	O
often	O
labelled	O
in	O
game	O
as	O
the	O
"	O
look	O
button	O
"	O
.	O
</s>
<s>
In	O
games	O
whose	O
free-look	O
systems	O
are	O
controlled	O
fluidly	O
via	O
a	O
pointing	B-Device
device	I-Device
,	O
such	O
as	O
a	O
mouse	B-Device
or	O
the	O
Wii	O
Remote	O
's	O
infrared	O
pointer	O
,	O
the	O
camera	O
will	O
change	O
angle	O
when	O
the	O
cursor	O
moves	O
near	O
an	O
edge	O
of	O
the	O
screen	O
.	O
</s>
<s>
Fully	O
3D	O
first-person	O
games	O
with	O
restricted	O
free	B-General_Concept
look	I-General_Concept
had	O
appeared	O
as	O
early	O
as	O
1992	O
on	O
the	O
PC	O
,	O
allowing	O
the	O
player	O
to	O
look	O
up	O
and	O
down	O
,	O
although	O
vision	O
was	O
controlled	O
by	O
dedicated	O
keys	O
rather	O
than	O
the	O
mouse	B-Device
.	O
</s>
<s>
At	O
the	O
time	O
it	O
was	O
still	O
cutting-edge	O
technology	O
and	O
did	O
n't	O
become	O
widespread	O
until	O
the	O
age	O
of	O
3D	B-Architecture
accelerators	I-Architecture
.	O
</s>
<s>
Ultima	B-Application
Underworld	I-Application
:	I-Application
The	I-Application
Stygian	I-Application
Abyss	I-Application
,	O
released	O
in	O
March	O
1992	O
,	O
as	O
well	O
as	O
the	O
later	O
System	B-Application
Shock	I-Application
(	O
which	O
was	O
made	O
on	O
the	O
same	O
engine	O
)	O
,	O
allowed	O
the	O
player	O
to	O
manipulate	O
the	O
camera	O
,	O
looking	O
left	O
,	O
right	O
,	O
up	O
or	O
down	O
by	O
using	O
dedicated	O
keys	O
or	O
by	O
using	O
the	O
mouse	B-Device
to	O
click	O
on	O
the	O
edges	O
of	O
the	O
screen	O
.	O
</s>
<s>
Taito	O
's	O
first-person	O
shooter	O
arcade	O
game	O
Gun	B-Application
Buster	I-Application
,	O
released	O
in	O
August	O
1992	O
,	O
featured	O
a	O
unique	O
control	O
scheme	O
where	O
the	O
player	O
moves	O
using	O
an	O
eight-direction	O
joystick	B-Device
and	O
takes	O
aim	O
using	O
a	O
mounted	O
positional	O
light	B-Device
gun	I-Device
.	O
</s>
<s>
In	O
the	O
1993	O
game	O
Doom	B-Application
,	O
it	O
was	O
not	O
possible	O
for	O
the	O
player	O
to	O
angle	O
the	O
view	O
up	O
or	O
down	O
,	O
though	O
Raven	O
Software	O
's	O
Heretic	B-Application
,	O
based	O
on	O
the	O
same	O
engine	O
as	O
Doom	B-Application
and	O
released	O
in	O
1994	O
,	O
added	O
a	O
restricted	O
free	B-General_Concept
look	I-General_Concept
to	O
the	O
engine	O
.	O
</s>
<s>
Dark	B-Application
Forces	I-Application
was	O
released	O
in	O
1995	O
and	O
featured	O
3D	O
look	O
,	O
but	O
more	O
restricted	O
than	O
the	O
free	B-General_Concept
look	I-General_Concept
of	O
the	O
earlier	O
Ultima	B-Application
Underworld	I-Application
and	O
System	B-Application
Shock	I-Application
.	O
</s>
<s>
Raven	O
Software	O
's	O
November	O
1994	O
release	O
CyClones	B-Device
featured	O
a	O
basic	O
implementation	O
of	O
the	O
free	B-General_Concept
look	I-General_Concept
;	O
main	O
movement	O
was	O
via	O
keyboard	O
(	O
with	O
turning	O
and	O
strafing	O
via	O
key	O
combinations	O
)	O
,	O
but	O
the	O
on-screen	O
weapon	O
aim	O
point	O
was	O
moved	O
independently	O
via	O
the	O
mouse	B-Device
.	O
</s>
<s>
The	O
1993	O
DOS	B-Device
version	O
of	O
Bram	B-Application
Stoker	I-Application
's	I-Application
Dracula	I-Application
also	O
used	O
the	O
mouse	B-Device
to	O
aim	O
the	O
player	O
's	O
weapon	O
cross-hair	O
,	O
similar	O
to	O
CyClones	B-Device
,	O
but	O
the	O
player	O
's	O
viewpoint	O
was	O
controlled	O
entirely	O
by	O
the	O
keyboard	O
and	O
did	O
not	O
move	O
with	O
the	O
cross-hair	O
.	O
</s>
<s>
The	O
next	O
major	O
step	O
was	O
using	O
the	O
mouse	B-Device
to	O
control	O
the	O
free	B-General_Concept
look	I-General_Concept
.	O
</s>
<s>
Marathon	B-Application
by	O
Bungie	O
,	O
released	O
in	O
December	O
1994	O
for	O
the	O
Apple	O
Macintosh	B-Device
was	O
the	O
first	O
major	O
release	O
to	O
feature	O
the	O
mouse-controlled	O
free	B-General_Concept
look	I-General_Concept
that	O
would	O
later	O
become	O
universal	O
.	O
</s>
<s>
The	O
first	O
major	O
game	O
for	O
PC	O
to	O
allow	O
mouselook	B-General_Concept
was	O
Descent	B-Application
;	O
it	O
was	O
not	O
the	O
default	O
control	O
mapping	O
,	O
but	O
quickly	O
became	O
the	O
de	O
facto	O
due	O
to	O
the	O
game	O
's	O
inherent	O
need	O
to	O
constantly	O
be	O
able	O
to	O
look	O
in	O
all	O
three	O
dimensions	O
.	O
</s>
<s>
The	O
first	O
game	O
with	O
full-time	O
fully	O
3D	O
mouselook	B-General_Concept
by	O
default	O
was	O
Terminator	B-Application
:	I-Application
Future	I-Application
Shock	I-Application
(	O
published	O
by	O
Bethesda	O
Softworks	O
in	O
1995	O
)	O
.	O
</s>
<s>
However	O
,	O
Terminator	B-Application
:	I-Application
Future	I-Application
Shock	I-Application
did	O
not	O
become	O
very	O
popular	O
and	O
the	O
original	O
Marathon	B-Application
was	O
not	O
available	O
on	O
the	O
PC	O
platform	O
,	O
so	O
their	O
impact	O
was	O
limited	O
.	O
</s>
<s>
Quake	B-Application
(	O
1996	O
)	O
,	O
is	O
widely	O
considered	O
to	O
have	O
been	O
the	O
turning	O
point	O
in	O
making	O
free	B-General_Concept
look	I-General_Concept
the	O
standard	O
,	O
in	O
part	O
due	O
to	O
its	O
Internet	B-Application
multiplayer	I-Application
feature	O
,	O
which	O
allowed	O
large	O
numbers	O
of	O
mouse	B-Device
and	O
keyboard	O
players	O
to	O
face	O
each	O
other	O
head-to-head	O
,	O
and	O
proved	O
the	O
superiority	O
of	O
mouselook	B-General_Concept
over	O
keyboard-only	O
controls	O
.	O
</s>
<s>
Although	O
games	O
using	O
older	O
engines	O
continued	O
to	O
appear	O
for	O
a	O
few	O
years	O
,	O
the	O
3D	B-Architecture
accelerator	I-Architecture
boom	O
in	O
the	O
mid-1990s	O
meant	O
that	O
for	O
the	O
first	O
time	O
true	O
3D	O
engines	O
could	O
be	O
run	O
on	O
home	O
PCs	O
,	O
and	O
free	O
mouselook	B-General_Concept
would	O
rapidly	O
become	O
essential	O
and	O
standard	O
in	O
almost	O
every	O
3D	O
game	O
.	O
</s>
<s>
GoldenEye	B-Application
007	I-Application
(	O
1997	O
)	O
extended	O
the	O
spread	O
of	O
this	O
technique	O
,	O
introducing	O
it	O
to	O
consoles	O
by	O
incorporating	O
the	O
manual	O
aiming	O
of	O
Sega	O
's	O
light	B-Device
gun	I-Device
shooter	O
Virtua	B-Language
Cop	I-Language
(	O
1994	O
)	O
in	O
its	O
first-person	O
shooter	O
gameplay	O
.	O
</s>
<s>
According	O
to	O
creator	O
Martin	O
Hollis	O
:	O
"	O
We	O
ended	O
up	O
with	O
innovative	O
gameplay	O
,	O
in	O
part	O
because	O
we	O
had	O
Virtua	B-Language
Cop	I-Language
features	O
in	O
a	O
FPS	O
:	O
A	O
gun	O
that	O
only	O
holds	O
7	O
bullets	O
and	O
a	O
reload	O
button	O
,	O
lots	O
of	O
position	O
dependent	O
hit	O
animations	O
,	O
innocents	O
you	O
should	O
n’t	O
kill	O
,	O
and	O
an	O
aiming	O
mode	O
.	O
</s>
<s>
When	O
you	O
press	O
R	O
in	O
GoldenEye	B-Application
,	O
the	O
game	O
basically	O
switches	O
to	O
a	O
Virtua	B-Language
Cop	I-Language
mode.	O
"	O
</s>
