<s>
Castles	B-Application
is	O
a	O
video	O
game	O
developed	O
by	O
Quicksilver	O
and	O
published	O
by	O
Interplay	O
Entertainment	O
in	O
1991	B-Application
and	O
1992	O
.	O
</s>
<s>
The	O
game	O
involves	O
the	O
construction	O
of	O
a	O
series	O
of	O
castles	B-Application
in	O
Wales	O
and	O
the	O
Welsh	O
Marches	O
during	O
the	O
13th	O
century	O
.	O
</s>
<s>
Castles	B-Application
was	O
quickly	O
followed	O
by	O
an	O
expansion	O
,	O
Castles	B-Application
:	I-Application
The	I-Application
Northern	I-Application
Campaign	I-Application
,	O
and	O
a	O
sequel	O
,	O
Castles	B-Application
II	I-Application
:	I-Application
Siege	I-Application
and	I-Application
Conquest	I-Application
.	O
</s>
<s>
In	O
Castles	B-Application
,	O
the	O
player	O
constructs	O
up	O
to	O
eight	O
castles	B-Application
,	O
one	O
after	O
the	O
other	O
,	O
in	O
various	O
regions	O
in	O
western	O
England	O
and	O
Wales	O
.	O
</s>
<s>
This	O
can	O
be	O
the	O
Pope	O
,	O
abbots	O
,	O
nuns	O
(	O
representing	O
the	O
church	O
)	O
,	O
various	O
knights	O
and	O
other	O
local	O
rulers	O
(	O
representing	O
the	O
lords	O
of	O
England	O
)	O
,	O
various	O
peasants	O
and	O
rebels	O
,	O
magicians	O
,	O
astrologers	O
,	O
and	O
even	O
representatives	O
of	O
"	O
fantasy	O
"	O
style	O
factions	O
,	O
such	O
as	O
the	O
seelie	O
court	O
(	O
elves	B-Application
)	O
.	O
</s>
<s>
They	O
then	O
position	O
their	O
infantry	B-Protocol
and	O
archers	O
in	O
defensive	O
positions	O
around	O
the	O
castle	O
or	O
on	O
top	O
of	O
castle	O
segments	O
.	O
</s>
<s>
on	O
constructed	O
or	O
partially	O
constructed	O
castle	O
segments	O
)	O
while	O
infantry	B-Protocol
are	O
placed	O
on	O
the	O
ground	O
,	O
either	O
inside	O
the	O
castle	O
(	O
to	O
attack	O
enemies	O
as	O
they	O
breach	O
the	O
walls	O
)	O
,	O
outside	O
the	O
castle	O
(	O
to	O
intercept	O
enemies	O
heading	O
towards	O
the	O
walls	O
)	O
or	O
a	O
combination	O
of	O
both	O
.	O
</s>
<s>
As	O
the	O
enemy	O
approaches	O
(	O
sometimes	O
from	O
more	O
than	O
one	O
direction	O
)	O
,	O
archers	O
attempt	O
to	O
shoot	O
them	O
down	O
,	O
while	O
infantry	B-Protocol
attempt	O
to	O
intercept	O
and	O
attack	O
them	O
in	O
melee	O
combat	O
.	O
</s>
<s>
Enemies	O
come	O
in	O
many	O
different	O
types	O
,	O
ranging	O
from	O
simple	O
enemy	O
troops	O
to	O
siege	O
weaponry	O
,	O
or	O
even	O
fantasy	O
creatures	O
(	O
ogres	B-Application
,	O
if	O
the	O
fantasy	O
option	O
was	O
selected	O
when	O
the	O
game	O
was	O
started	O
)	O
.	O
</s>
<s>
At	O
the	O
start	O
of	O
the	O
game	O
,	O
the	O
player	O
is	O
asked	O
how	O
many	O
castles	B-Application
they	O
wish	O
to	O
construct	O
(	O
3	O
,	O
5	O
or	O
8	O
)	O
,	O
thus	O
dictating	O
the	O
length	O
of	O
the	O
entire	O
campaign	O
.	O
</s>
<s>
Castles	B-Application
are	O
constructed	O
one	O
after	O
another	O
,	O
and	O
each	O
scenario	O
is	O
more	O
difficult	O
than	O
the	O
last	O
,	O
in	O
terms	O
of	O
available	O
resources	O
and	O
money	O
,	O
the	O
size	O
and	O
variety	O
of	O
enemy	O
troops	O
,	O
as	O
well	O
as	O
the	O
difficulty	O
in	O
maintaining	O
good	O
relations	O
with	O
all	O
the	O
different	O
factions	O
(	O
friendly	O
or	O
otherwise	O
)	O
.	O
</s>
<s>
Originally	O
developed	O
for	O
DOS	B-Device
,	O
Castles	B-Application
used	O
CGA/EGA/VGA	O
graphics	O
and	O
supporting	O
AdLib	O
MIDI	O
sound	O
,	O
as	O
well	O
as	O
a	O
mouse	O
interface	O
.	O
</s>
<s>
It	O
was	O
ported	O
to	O
the	O
Atari	B-Device
ST	I-Device
in	O
1991	B-Application
and	O
to	O
the	O
Amiga	B-Device
in	O
1992	O
,	O
and	O
a	O
PC-98	B-Operating_System
localization	O
was	O
sold	O
in	O
Japan	O
.	O
</s>
<s>
In	O
1991	B-Application
an	O
expansion	O
pack	O
,	O
The	O
Northern	O
Campaign	O
,	O
was	O
released	O
for	O
DOS	B-Device
and	O
in	O
1992	O
for	O
Amiga	B-Device
.	O
</s>
<s>
GOG.com	O
released	O
an	O
emulated	B-Application
version	O
for	O
Microsoft	B-Application
Windows	I-Application
in	O
2008	O
.	O
</s>
<s>
Computer	O
Gaming	O
Worlds	O
reviewer	O
liked	O
the	O
game	O
in	O
1991	B-Application
,	O
stating	O
that	O
he	O
was	O
"	O
genuinely	O
sorry	O
"	O
when	O
the	O
game	O
ended	O
as	O
he	O
wished	O
to	O
see	O
the	O
castle	O
in	O
operation	O
,	O
and	O
concluded	O
that	O
"	O
Castles	B-Application
fairly	O
begs	O
for	O
a	O
sequel	O
"	O
.	O
</s>
<s>
In	O
a	O
1993	O
survey	O
of	O
pre	O
20th-century	O
strategy	B-Application
games	I-Application
the	O
magazine	O
gave	O
the	O
game	O
two	O
stars	O
out	O
of	O
five	O
,	O
stating	O
that	O
while	O
"	O
graphically	O
well-done	O
and	O
initially	O
fascinating	O
to	O
watch	O
 [ it ] 	O
can	O
quickly	O
become	O
somewhat	O
tedious	O
.	O
</s>
<s>
Is	O
there	O
a	O
game	O
in	O
here	O
,	O
or	O
is	O
it	O
a	O
software	B-Application
toy	I-Application
?	O
"	O
</s>
<s>
The	O
game	O
was	O
reviewed	O
in	O
1991	B-Application
in	O
Dragon	O
#175	O
by	O
Hartley	O
,	O
Patricia	O
,	O
and	O
Kirk	O
Lesser	O
in	O
"	O
The	O
Role	O
of	O
Computers	O
"	O
column	O
.	O
</s>
<s>
Castles	B-Application
:	I-Application
The	I-Application
Northern	I-Application
Campaign	I-Application
was	O
reviewed	O
in	O
1992	O
in	O
Dragon	O
#180	O
by	O
the	O
Lessers	O
.	O
</s>
