<s>
Crusader	B-Application
Kings	I-Application
is	I-Application
a	O
grand	O
strategy	B-Application
game	I-Application
developed	O
by	O
Paradox	O
Development	O
Studio	O
and	O
published	O
by	O
Paradox	O
Interactive	O
in	O
April	O
2004	O
.	O
</s>
<s>
A	O
sequel	O
using	O
the	O
newer	O
Clausewitz	B-Application
Engine	I-Application
,	O
Crusader	B-Application
Kings	I-Application
II	I-Application
,	O
was	O
released	O
in	O
February	O
2012	O
,	O
and	O
another	O
sequel	O
,	O
Crusader	B-Application
Kings	I-Application
III	I-Application
,	O
was	O
released	O
on	O
September	O
1	O
,	O
2020	O
.	O
</s>
<s>
Unlike	O
other	O
Paradox	O
titles	O
(	O
such	O
as	O
the	O
first	O
two	O
Europa	B-Application
Universalis	I-Application
series	I-Application
)	O
,	O
Crusader	B-Application
Kings	I-Application
is	I-Application
a	O
dynasty	B-Device
simulator	O
with	O
similarities	O
to	O
role-playing	O
video	O
games	O
in	O
that	O
it	O
focuses	O
on	O
a	O
trait-based	O
individual	O
whose	O
primary	O
goal	O
is	O
the	O
growth	O
and	O
enrichment	O
of	O
their	O
dynasty	B-Device
.	O
</s>
<s>
Crusader	B-Application
Kings	I-Application
also	O
differs	O
from	O
many	O
similar	O
turn-based	O
strategy	B-Application
games	I-Application
in	O
that	O
time	O
flows	O
continuously	O
rather	O
than	O
taking	O
place	O
in	O
discrete	O
turns	O
.	O
</s>
<s>
castle	O
baron	O
,	O
city	O
mayor	O
,	O
church	O
bishop	O
)	O
,	O
as	O
seen	O
in	O
Crusader	B-Application
Kings	I-Application
II	I-Application
are	O
not	O
represented	O
.	O
</s>
<s>
The	O
game	O
is	O
lost	O
if	O
no	O
direct	O
member	O
of	O
the	O
playable	O
dynasty	B-Device
holds	O
or	O
inherits	O
an	O
imperial	O
,	O
royal	O
,	O
or	O
noble	O
rank	O
.	O
</s>
<s>
The	O
engine	O
for	O
the	O
game	O
was	O
based	O
on	O
the	O
one	O
developed	O
for	O
Europa	B-Application
Universalis	I-Application
II	I-Application
,	O
i.e.	O
</s>
<s>
the	O
updated	O
Europa	B-Application
Engine	I-Application
,	O
which	O
had	O
been	O
released	O
in	O
December	O
2001	O
.	O
</s>
<s>
The	O
similarities	O
between	O
the	O
two	O
games	O
,	O
and	O
the	O
release	O
of	O
a	O
save	O
game	O
converter	O
,	O
allow	O
players	O
to	O
continue	O
their	O
game	O
after	O
1419	O
through	O
Europa	B-Application
Universalis	I-Application
II	I-Application
.	O
</s>
<s>
In	O
North	O
America	O
,	O
Crusader	B-Application
Kings	I-Application
was	O
originally	O
planned	O
to	O
be	O
published	O
by	O
Strategy	O
First	O
.	O
</s>
<s>
The	O
game	O
received	O
"	O
average	O
"	O
reviews	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
Metacritic	O
,	O
and	O
many	O
U.S.	O
reviews	O
came	O
in	O
a	O
few	O
months	O
before	O
the	O
game	O
's	O
official	O
U.S.	O
release	O
.	O
</s>
<s>
In	O
the	O
2013	O
book	O
Digital	O
Gaming	O
Re-imagines	O
the	O
Middle	O
Ages	O
,	O
the	O
author	O
explains	O
that:As	O
digital	O
medievalism	O
,	O
Crusader	B-Application
Kings	I-Application
models	O
systems	O
of	O
cultural	O
change	O
in	O
the	O
Middle	O
Ages	O
rather	O
than	O
merely	O
assigning	O
cultural	O
labels	O
to	O
people	O
and	O
geographic	O
areas	O
of	O
Europe	O
at	O
specific	O
chronological	O
dates	O
.	O
</s>
