<s>
Nautilus	B-Application
is	O
a	O
video	O
game	O
for	O
the	O
Atari	B-Device
8-bit	I-Device
family	I-Device
of	O
home	O
computers	O
created	O
by	O
Mike	O
Potter	O
and	O
published	O
by	O
Synapse	O
Software	O
in	O
1982	O
.	O
</s>
<s>
The	O
players	O
control	O
a	O
submarine	O
,	O
the	O
Nautilus	B-Application
,	O
or	O
a	O
destroyer	B-Application
,	O
the	O
Colossus	O
,	O
attempting	O
to	O
either	O
destroy	O
or	O
rebuild	O
an	O
underwater	O
city	O
.	O
</s>
<s>
Nautilus	B-Application
starts	O
with	O
player	O
one	O
in	O
control	O
of	O
the	O
submarine	O
,	O
visible	O
in	O
the	O
lower	O
pane	O
of	O
the	O
split-screen	O
display	O
.	O
</s>
<s>
The	O
joystick	B-Device
allows	O
the	O
player	O
to	O
move	O
left	O
and	O
right	O
or	O
rise	O
and	O
sink	O
.	O
</s>
<s>
Player	O
two	O
,	O
or	O
the	O
computer	O
player	O
in	O
a	O
single-player	O
game	O
,	O
controls	O
the	O
destroyer	B-Application
,	O
visible	O
in	O
the	O
upper	O
pane	O
.	O
</s>
<s>
The	O
destroyer	B-Application
also	O
drops	O
depth	B-Device
charges	I-Device
and	O
Barracuda	O
missiles	O
that	O
attack	O
the	O
submarine	O
.	O
</s>
<s>
The	O
most	O
dangerous	O
enemy	O
is	O
normally	O
the	O
construction	O
crew	O
,	O
who	O
may	O
fix	O
one	O
of	O
the	O
buildings	O
while	O
the	O
Nautilus	B-Application
is	O
inside	O
,	O
retrieving	O
the	O
core	O
.	O
</s>
<s>
Both	O
the	O
Nautilus	B-Application
and	O
Colossus	O
have	O
a	O
sonar	O
system	O
that	O
indicates	O
the	O
direction	O
to	O
the	O
other	O
ship	O
.	O
</s>
<s>
In	O
two-player	O
mode	O
the	O
actions	O
of	O
the	O
destroyer	B-Application
are	O
relatively	O
limited	O
.	O
</s>
<s>
Nautilus	B-Application
was	O
lauded	O
at	O
the	O
time	O
of	O
its	O
release	O
,	O
with	O
Creative	B-General_Concept
Computing	I-General_Concept
calling	O
it	O
a	O
"	O
tour	O
de	O
force	O
"	O
,	O
and	O
judges	O
at	O
the	O
4th	O
annual	O
Arkie	O
Awards	O
granting	O
it	O
a	O
Certificate	O
of	O
Merit	O
in	O
the	O
category	O
of	O
"	O
Most	O
Innovative	O
Computer	O
Game	O
"	O
.	O
</s>
<s>
In	O
an	O
article	O
about	O
Synapse	O
,	O
an	O
InfoWorld	O
author	O
noted	O
no	O
one	O
was	O
examining	O
their	O
highly	O
rated	O
relational	B-Application
database	I-Application
program	O
,	O
in	O
favour	O
of	O
watching	O
a	O
game	O
of	O
Nautilus	B-Application
being	O
played	O
.	O
</s>
<s>
Grant	O
Butenhoff	O
reviewed	O
the	O
game	O
for	O
Computer	O
Gaming	O
World	O
,	O
and	O
stated	O
that	O
"	O
Truly	O
,	O
Synapse	O
has	O
produced	O
another	O
top	O
rate	O
game	O
with	O
outstanding	O
graphics	O
and	O
intense	O
action.	O
"	O
</s>
