<s>
Excalibur	B-Application
is	O
a	O
1983	O
resource-management	O
strategy	B-Application
video	I-Application
game	I-Application
for	O
the	O
Atari	B-Device
8-bit	I-Device
family	I-Device
.	O
</s>
<s>
Like	O
Crawford	O
's	O
earlier	O
Eastern	B-Application
Front	I-Application
(	O
1941	O
)	O
,	O
Excalibur	B-Application
was	O
published	O
by	O
the	O
Atari	B-Application
Program	I-Application
Exchange	I-Application
.	O
</s>
<s>
The	O
object	O
of	O
the	O
game	O
is	O
to	O
unite	O
all	O
of	O
Britain	O
under	O
the	O
rule	O
of	O
King	B-Application
Arthur	I-Application
.	O
</s>
<s>
Electronic	O
Games	O
stated	O
that	O
"	O
Excalibur	B-Application
is	O
a	O
grand	O
effort	O
"	O
.	O
</s>
<s>
Computer	O
Gaming	O
World	O
in	O
1984	O
called	O
Excalibur	B-Application
"	O
a	O
magnificent	O
piece	O
of	O
software	O
"	O
.	O
</s>
<s>
In	O
1990	O
,	O
CGW	O
gave	O
the	O
game	O
four	O
out	O
of	O
five	O
stars	O
,	O
stating	O
that	O
"	O
even	O
on	O
an	O
obsolete	O
machine	O
"	O
Excalibur	B-Application
was	O
still	O
worthwhile	O
.	O
</s>
<s>
The	O
Addison-Wesley	O
Book	O
of	O
Atari	O
Software	O
1984	O
gave	O
Excalibur	B-Application
an	O
overall	O
A	O
rating	O
and	O
stated	O
that	O
"	O
those	O
who	O
persevere	O
will	O
find	O
an	O
ample	O
reward	O
in	O
the	O
game	O
's	O
incredible	O
depth	O
"	O
.	O
</s>
<s>
Crawford	O
in	O
1984	O
wrote	O
"	O
My	O
greatest	O
regret	O
,	O
though	O
,	O
is	O
that	O
Excalibur	B-Application
has	O
not	O
won	O
the	O
attention	O
that	O
I	O
think	O
it	O
deserves	O
.	O
</s>
<s>
In	O
1987	O
,	O
Crawford	O
stated	O
that	O
Excalibur	B-Application
was	O
one	O
of	O
the	O
three	O
games	O
he	O
was	O
proud	O
of	O
,	O
with	O
Eastern	B-Application
Front	I-Application
and	O
Balance	B-Application
of	I-Application
Power	I-Application
.	O
</s>
<s>
In	O
2013	O
,	O
Crawford	O
publicly	O
released	O
source	O
code	O
for	O
several	O
of	O
his	O
games	O
,	O
including	O
Excalibur	B-Application
.	O
</s>
