<s>
Anno	O
1503	O
:	O
The	O
New	B-Protocol
World	I-Protocol
(	O
released	O
as	O
1503	O
A.D.	O
:	O
The	O
New	B-Protocol
World	I-Protocol
in	O
North	O
America	O
)	O
is	O
a	O
2002	O
construction	B-Application
and	I-Application
management	I-Application
simulation	I-Application
video	I-Application
game	I-Application
developed	O
by	O
Austrian	O
developer	O
Max	O
Design	O
and	O
published	O
by	O
Sunflowers	O
Interactive	O
.	O
</s>
<s>
Part	O
of	O
the	O
Anno	O
series	O
,	O
it	O
is	O
a	O
direct	O
sequel	O
to	O
Anno	B-Application
1602	I-Application
,	O
the	O
most	O
commercially	O
successful	O
German	O
video	O
game	O
ever	O
by	O
2002	O
.	O
</s>
<s>
Anno	O
1503	O
revolves	O
around	O
building	O
and	O
maintaining	O
a	O
16th-century	O
colony	O
in	O
the	O
New	B-Protocol
World	I-Protocol
.	O
</s>
<s>
It	O
was	O
followed	O
by	O
an	O
expansion	O
pack	O
,	O
Treasures	O
,	O
Monsters	O
&	O
Pirates	O
,	O
and	O
a	O
sequel	O
,	O
Anno	B-Application
1701	I-Application
.	O
</s>
<s>
As	O
in	O
Anno	B-Application
1602	I-Application
,	O
the	O
AI	O
is	O
progressive	O
,	O
meaning	O
that	O
it	O
advances	O
along	O
with	O
the	O
human	O
player	O
.	O
</s>
<s>
Military	O
operations	O
in	O
this	O
game	O
are	O
more	O
complex	O
than	O
in	O
Anno	B-Application
1602	I-Application
.	O
</s>
<s>
The	O
game	O
has	O
more	O
than	O
seven	O
different	O
types	O
of	O
units	O
as	O
opposed	O
to	O
Anno	B-Application
1602	I-Application
with	O
only	O
four	O
.	O
</s>
<s>
The	O
buildings	O
in	O
the	O
game	O
are	O
also	O
more	O
extensive	O
than	O
those	O
of	O
Anno	B-Application
1602	I-Application
.	O
</s>
<s>
Anno	O
1503	O
began	O
development	O
in	O
January	O
1999	O
,	O
following	O
the	O
success	O
of	O
1998	O
's	O
Anno	B-Application
1602	I-Application
.	O
</s>
<s>
Commercial	O
expectations	O
for	O
Anno	O
1503	O
were	O
high	O
,	O
as	O
its	O
predecessor	O
,	O
Anno	B-Application
1602	I-Application
,	O
was	O
the	O
German	O
market	O
's	O
all-time	O
best-selling	O
video	O
game	O
by	O
2002	O
.	O
</s>
<s>
The	O
game	O
was	O
knocked	O
to	O
second	O
place	O
on	O
GfK	O
's	O
charts	O
by	O
Age	B-Application
of	I-Application
Mythology	I-Application
and	O
Harry	B-Application
Potter	I-Application
and	I-Application
the	I-Application
Chamber	I-Application
of	I-Application
Secrets	I-Application
during	O
its	O
fourth	O
and	O
fifth	O
weeks	O
,	O
respectively	O
,	O
but	O
it	O
held	O
the	O
#1	O
position	O
on	O
Media	O
Control	O
's	O
chart	O
for	O
November	O
overall	O
.	O
</s>
<s>
At	O
the	O
time	O
,	O
4players	O
reported	O
that	O
the	O
game	O
's	O
sales	O
during	O
its	O
first	O
10	O
weeks	O
were	O
three-fourths	O
higher	O
than	O
Anno	B-Application
1602s	I-Application
over	O
the	O
same	O
period	O
.	O
</s>
<s>
At	O
the	O
time	O
,	O
it	O
was	O
the	O
fastest	O
full-price	O
computer	O
title	O
to	O
reach	O
this	O
milestone	O
in	O
the	O
region	O
,	O
a	O
record	O
previously	O
held	O
by	O
Anno	B-Application
1602	I-Application
.	O
</s>
