<s>
SSN-21	B-Application
Seawolf	I-Application
is	O
a	O
submarine	O
simulator	O
game	O
designed	O
by	O
John	O
W	O
.	O
Ratcliff	O
and	O
published	O
for	O
MS-DOS	B-Application
systems	O
by	O
Electronic	O
Arts	O
on	O
April	O
3	O
,	O
1994	O
.	O
</s>
<s>
A	O
3DO	B-Device
Interactive	I-Device
Multiplayer	I-Device
version	O
was	O
planned	O
but	O
never	O
released	O
.	O
</s>
<s>
The	O
player	O
takes	O
command	O
of	O
a	O
US	O
and	O
fights	O
in	O
33	O
missions	O
with	O
targets	O
under	O
and	O
above	O
water	O
including	O
Russian	O
attack	O
submarines	O
,	O
destroyers	B-Application
,	O
guided	O
missile	O
cruisers	O
,	O
aircraft	O
carriers	O
and	O
frigates	O
.	O
</s>
<s>
The	O
game	O
is	O
a	O
sequel	O
to	O
Electronic	O
Arts	O
 '	O
688	B-Application
Attack	I-Application
Sub	I-Application
,	O
and	O
has	O
a	O
similar	O
mission	O
structure	O
and	O
variety	O
.	O
</s>
<s>
Like	O
its	O
predecessor	O
,	O
Seawolf	O
allows	O
two	O
players	O
,	O
on	O
different	O
PCs	O
,	O
to	O
play	O
each	O
other	O
via	O
a	O
modem	B-Application
,	O
or	O
null-modem	O
cable	O
,	O
and	O
adds	O
the	O
option	O
of	O
using	O
an	O
IPX	B-Protocol
local	O
network	O
which	O
can	O
provide	O
a	O
more	O
reliable	O
connection	O
.	O
</s>
