<s>
Apple	B-Application
Cider	I-Application
Spider	I-Application
is	O
a	O
three-screen	O
platform	O
game	O
written	O
for	O
the	O
Apple	B-Device
II	I-Device
by	O
Ivan	O
Strand	O
and	O
published	O
by	O
Sierra	O
On-Line	O
in	O
1983	O
.	O
</s>
<s>
The	O
player	O
takes	O
the	O
role	O
of	O
a	O
spider	B-Protocol
in	O
an	O
apple	O
cider	O
factory	O
.	O
</s>
<s>
The	O
goal	O
is	O
to	O
progress	O
through	O
three	O
screens	O
to	O
reach	O
the	O
top	O
of	O
the	O
factory	O
,	O
to	O
join	O
the	O
company	O
of	O
other	O
spiders	B-Protocol
.	O
</s>
<s>
Each	O
screen	O
is	O
situated	O
on	O
top	O
of	O
the	O
previous	O
one	O
,	O
so	O
the	O
spider	B-Protocol
progresses	O
upward	O
while	O
the	O
apples	O
are	O
carried	O
downward	O
.	O
</s>
<s>
Contact	O
with	O
cider	O
,	O
apples	O
,	O
or	O
cider-making	O
instruments	O
kills	O
the	O
spider	B-Protocol
instantly	O
.	O
</s>
<s>
All	O
three	O
screens	O
feature	O
a	O
complex	O
system	O
of	O
conveyor	O
belts	O
that	O
the	O
spider	B-Protocol
must	O
travel	O
along	O
,	O
in	O
the	O
opposite	O
direction	O
to	O
the	O
cider	O
and	O
the	O
apples	O
.	O
</s>
<s>
The	O
factory	O
is	O
oblivious	O
to	O
the	O
presence	O
of	O
the	O
spider	B-Protocol
.	O
</s>
<s>
These	O
include	O
various	O
animals	O
that	O
hop	O
along	O
the	O
platform	O
as	O
well	O
as	O
blocker	O
bars	O
on	O
the	O
ladders	B-Application
that	O
the	O
spider	B-Protocol
uses	O
to	O
move	O
upwards	O
.	O
</s>
