<s>
Zone	B-Application
Warrior	I-Application
is	O
a	O
three-dimensional	O
space	O
combat	O
simulator	O
game	O
written	O
by	O
Julian	O
James	O
for	O
Mac	B-Application
OS	I-Application
and	O
published	O
by	O
Casady	O
&	O
Greene	O
in	O
1997	O
.	O
</s>
<s>
In	O
Zone	B-Application
Warrior	I-Application
,	O
the	O
player	O
is	O
the	O
lone	O
defender	O
of	O
a	O
remote	O
space	O
station	O
under	O
attack	O
by	O
aliens	O
.	O
</s>
<s>
The	O
game	O
was	O
followed	O
by	O
a	O
sequel	O
,	O
then	O
Julian	O
James	O
ported	O
the	O
original	O
to	O
iOS	B-Application
.	O
</s>
<s>
IGN	O
praised	O
the	O
graphics	O
and	O
controls	O
,	O
comparing	O
it	O
the	O
1979	O
arcade	O
game	O
Asteroids	B-Application
,	O
finding	O
the	O
early	O
levels	O
easy	O
but	O
the	O
later	O
very	O
challenging	O
.	O
</s>
<s>
Touch	O
Arcade	O
called	O
it	O
"	O
an	O
enjoyable	O
shooter	O
"	O
,	O
comparing	O
it	O
to	O
Star	B-Application
Raiders	I-Application
and	O
again	O
Asteroids	B-Application
.	O
</s>
<s>
A	O
sequel	O
,	O
Zone	B-Application
Warrior	I-Application
II	O
,	O
was	O
released	O
for	O
OS	B-Application
X	I-Application
in	O
2001	O
.	O
</s>
