<s>
Sopwith	B-Application
is	O
a	O
side-scrolling	O
shoot	O
'	O
em	O
up	O
created	O
by	O
David	O
L	O
.	O
Clark	O
of	O
BMB	O
Compuscience	O
in	O
1984	O
.	O
</s>
<s>
It	O
was	O
originally	O
written	O
to	O
run	O
on	O
the	O
IBM	B-Device
PC	I-Device
under	O
MS-DOS	B-Application
.	O
</s>
<s>
The	O
game	O
involves	O
piloting	O
a	O
Sopwith	B-Application
biplane	O
,	O
attempting	O
to	O
bomb	B-Device
enemy	O
buildings	O
while	O
avoiding	O
fire	O
from	O
enemy	O
planes	O
and	O
various	O
other	O
obstacles	O
.	O
</s>
<s>
Sopwith	B-Application
uses	O
four-color	O
CGA	B-Device
graphics	I-Device
and	O
music	O
and	O
sound	O
effects	O
use	O
the	O
PC	B-Device
speaker	I-Device
.	O
</s>
<s>
A	O
sequel	O
with	O
the	O
same	O
name	O
,	O
but	O
often	O
referred	O
to	O
as	O
Sopwith	B-Application
2	I-Application
,	O
was	O
released	O
in	O
1985	O
.	O
</s>
<s>
The	O
plane	O
is	O
equipped	O
with	O
a	O
machine	O
gun	O
and	O
a	O
supply	O
of	O
bombs	B-Device
.	O
</s>
<s>
Gauges	O
in	O
the	O
status	O
bar	O
at	O
the	O
bottom	O
of	O
the	O
screen	O
show	O
the	O
remaining	O
lives	O
,	O
fuel	O
,	O
bombs	B-Device
and	O
bullets	O
,	O
respectively	O
.	O
</s>
<s>
In	O
Sopwith	B-Application
1	O
this	O
is	O
the	O
end	O
of	O
the	O
game	O
,	O
but	O
in	O
later	O
versions	O
the	O
game	O
advances	O
to	O
the	O
next	O
level	O
.	O
</s>
<s>
The	O
ox	B-Language
was	O
included	O
as	O
an	O
in-joke	O
and	O
refers	O
to	O
an	O
employee	O
at	O
BMB	O
named	O
"	O
Ox	B-Language
"	O
(	O
aka	O
David	O
Growden	O
)	O
.	O
</s>
<s>
Sopwith	B-Application
was	O
created	O
to	O
demonstrate	O
the	O
Imaginet	O
proprietary	O
networking	O
system	O
developed	O
by	O
BMB	O
Compuscience	O
.	O
</s>
<s>
David	O
L	O
.	O
Clark	O
,	O
employed	O
as	O
a	O
programmer	O
at	O
BMB	O
,	O
developed	O
Sopwith	B-Application
as	O
a	O
multiplayer	O
game	O
.	O
</s>
<s>
The	O
C	B-Language
and	O
x86	B-Language
assembly	I-Language
source	O
code	O
to	O
Sopwith	B-Application
was	O
released	O
in	O
2000	B-Application
,	O
at	O
first	O
under	O
a	O
non-commercial	O
use	O
license	O
,	O
but	O
later	O
under	O
the	O
GNU	B-License
GPL	I-License
at	O
the	O
request	O
of	O
fans	O
.	O
</s>
<s>
In	O
Sopwith	B-Application
2	I-Application
(	O
1985	O
)	O
,	O
obstacles	O
exist	O
in	O
the	O
form	O
of	O
oxen	B-Language
and	O
birds	O
.	O
</s>
<s>
The	O
oxen	B-Language
stand	O
on	O
the	O
ground	O
;	O
if	O
the	O
player	O
crashes	O
into	O
one	O
,	O
or	O
shoots	O
one	O
,	O
the	O
game	O
deducts	O
200	O
points	O
and	O
the	O
plane	O
crashes	O
.	O
</s>
<s>
Sopwith	B-Application
2	I-Application
adds	O
the	O
ability	O
to	O
play	O
multiplayer	O
over	O
an	O
async	O
serial	O
interface	O
,	O
but	O
a	O
BMB	O
dictionary	O
driver	O
(	O
NAMEDEV.SYS	O
)	O
and	O
a	O
BMB	O
serial	O
communications	O
driver	O
(	O
SERIAL.SYS	O
or	O
SERWORK.SYS	O
)	O
are	O
needed	O
.	O
</s>
<s>
Following	O
the	O
source	O
code	O
release	O
,	O
SDL	O
Sopwith	B-Application
was	O
written	O
as	O
a	O
C	B-Language
port/rewrite	O
of	O
Sopwith	B-Application
2	I-Application
:	O
The	O
Author	O
's	O
Edition	O
written	O
in	O
2001	O
by	O
Simon	O
Howard	O
.	O
</s>
<s>
It	O
uses	O
the	O
Simple	B-Operating_System
DirectMedia	I-Operating_System
Layer	I-Operating_System
library	O
and	O
preserves	O
the	O
CGA	B-Device
graphics	I-Device
of	O
the	O
original	O
.	O
</s>
