<s>
Capture	B-Application
the	I-Application
Flag	I-Application
is	O
a	O
3D	O
first-person	O
perspective	O
,	O
two	O
player	O
,	O
video	O
game	O
,	O
released	O
for	O
the	O
Atari	B-Device
8-bit	I-Device
family	I-Device
and	O
VIC-20	B-Device
by	O
Sirius	O
Software	O
in	O
1983	B-Application
.	O
</s>
<s>
It	O
was	O
written	O
by	O
Paul	O
Allen	O
Edelstein	O
as	O
the	O
follow-up	O
to	O
his	O
1982	B-Application
game	O
,	O
Wayout	B-Application
,	O
which	O
has	O
similar	O
maze-based	O
gameplay	O
for	O
one	O
player	O
.	O
</s>
<s>
Along	O
with	O
its	O
predecessor	O
,	O
Capture	B-Application
the	I-Application
Flag	I-Application
was	O
among	O
the	O
first	O
3D	O
maze	B-Application
games	I-Application
to	O
offer	O
the	O
player	O
full	O
360	O
degree	O
movement	O
,	O
and	O
one	O
of	O
the	O
earliest	O
multiplayer	O
games	O
from	O
a	O
first-person	O
perspective	O
within	O
a	O
3D	O
rendered	O
environment	O
.	O
</s>
<s>
Capture	B-Application
the	I-Application
Flag	I-Application
is	O
essentially	O
a	O
two	O
player	O
version	O
of	O
Wayout	B-Application
,	O
with	O
one	O
player	O
(	O
the	O
"	O
Invader	O
"	O
)	O
trying	O
to	O
find	O
the	O
exit	O
(	O
or	O
'	O
flag	O
 '	O
)	O
in	O
the	O
maze	B-Application
while	O
the	O
other	O
player	O
(	O
the	O
'	O
Defender	O
 '	O
)	O
tries	O
to	O
stop	O
them	O
,	O
a	O
role	O
similar	O
to	O
the	O
computer-controlled	O
"	O
Cleptangle	O
"	O
from	O
the	O
first	O
game	O
.	O
</s>
<s>
The	O
main	O
difference	O
is	O
that	O
the	O
game	O
's	O
display	O
is	O
split-screen	O
,	O
allowing	O
each	O
of	O
the	O
two	O
players	O
to	O
view	O
the	O
maze	B-Application
from	O
their	O
own	O
perspective	O
.	O
</s>
<s>
Each	O
player	O
is	O
represented	O
within	O
the	O
maze	B-Application
as	O
a	O
simple	O
,	O
rectangular-shaped	O
,	O
blue	O
or	O
green	O
avatar	B-Application
.	O
</s>
<s>
If	O
the	O
Invader	O
finds	O
the	O
flag	O
,	O
or	O
the	O
Defender	O
catches	O
the	O
Invader	O
,	O
a	O
new	O
maze	B-Application
is	O
generated	O
and	O
the	O
chase	O
starts	O
again	O
.	O
</s>
<s>
Another	O
progression	O
from	O
Wayout	B-Application
is	O
that	O
instead	O
of	O
a	O
finite	O
number	O
of	O
mazes	B-Application
,	O
Capture	B-Application
the	I-Application
Flag	I-Application
can	O
create	O
an	O
infinite	O
number	O
of	O
randomly	O
generated	O
mazes	B-Application
.	O
</s>
<s>
Capture	B-Application
the	I-Application
Flag	I-Application
also	O
uses	O
the	O
mapmaker	O
feature	O
from	O
Wayout	B-Application
,	O
which	O
draws	O
the	O
map	O
in	O
2D	O
in	O
the	O
lower	O
half	O
of	O
the	O
screen	O
as	O
each	O
of	O
the	O
players	O
move	O
around	O
the	O
map	O
.	O
</s>
<s>
Players	O
can	O
choose	O
to	O
control	O
their	O
character	O
using	O
a	O
joystick	B-Device
or	O
the	O
keyboard	B-Device
utilizing	O
one	O
of	O
two	O
methods	O
;	O
"	O
Compass	O
Movement	O
"	O
or	O
"	O
Walking	O
Movement	O
"	O
.	O
</s>
<s>
For	O
the	O
two	O
player	O
option	O
,	O
players	O
must	O
use	O
both	O
the	O
joystick	B-Device
and	O
the	O
keyboard	B-Device
.	O
</s>
<s>
Capture	B-Application
the	I-Application
Flag	I-Application
uses	O
layered	O
dynamic	O
music	O
which	O
changes	O
depending	O
on	O
the	O
proximity	O
of	O
the	O
two	O
players	O
.	O
</s>
<s>
Electronic	O
Fun	O
magazine	O
gave	O
a	O
very	O
positive	O
review	O
in	O
its	O
February	O
1984	O
issue	O
,	O
scoring	O
the	O
game	O
4	O
out	O
of	O
4	O
,	O
and	O
said	O
that	O
Capture	B-Application
the	I-Application
Flag	I-Application
was	O
a	O
huge	O
improvement	O
on	O
Wayout	B-Application
.	O
</s>
