<s>
Age	B-Application
of	I-Application
Empires	I-Application
IV	I-Application
is	O
a	O
real-time	O
strategy	O
video	O
game	O
developed	O
by	O
Relic	O
Entertainment	O
in	O
partnership	O
with	O
World	O
's	O
Edge	O
and	O
published	O
by	O
Xbox	B-Device
Game	O
Studios	O
.	O
</s>
<s>
It	O
is	O
the	O
fourth	O
installment	O
of	O
the	O
Age	B-Application
of	I-Application
Empires	I-Application
series	O
.	O
</s>
<s>
It	O
is	O
also	O
scheduled	O
to	O
release	O
for	O
Xbox	B-Device
One	I-Device
and	O
Xbox	B-Device
Series	I-Device
X/S	I-Device
in	O
2023	O
.	O
</s>
<s>
The	O
game	O
is	O
set	O
during	O
the	O
Early	O
Middle	O
Ages	O
to	O
the	O
early	O
Renaissance	B-Application
.	O
</s>
<s>
On	O
August	O
21	O
,	O
2017	O
,	O
Microsoft	O
announced	O
Age	B-Application
of	I-Application
Empires	I-Application
IV	I-Application
,	O
developed	O
by	O
Relic	O
Entertainment	O
.	O
</s>
<s>
Microsoft	O
's	O
Executive	O
Vice-President	O
of	O
Gaming	O
,	O
Phil	O
Spencer	O
,	O
confirmed	O
on	O
June	O
11	O
,	O
2019	O
,	O
that	O
Age	B-Application
of	I-Application
Empires	I-Application
IV	I-Application
was	O
still	O
in	O
development	O
,	O
with	O
more	O
information	O
coming	O
later	O
in	O
2019	O
.	O
</s>
<s>
On	O
November	O
14	O
,	O
2019	O
,	O
gameplay	O
footage	O
of	O
Age	B-Application
of	I-Application
Empires	I-Application
IV	I-Application
was	O
shown	O
at	O
the	O
X019	O
event	O
.	O
</s>
<s>
The	O
game	O
released	O
on	O
October	O
28	O
,	O
2021	O
having	O
been	O
developed	O
using	O
the	O
Essence	B-Application
Engine	I-Application
.	O
</s>
<s>
IGN	O
summed	O
up	O
their	O
review	O
by	O
saying	O
"	O
Age	B-Application
of	I-Application
Empires	I-Application
4	I-Application
is	O
an	O
enjoyable	O
RTS	O
throwback	O
that	O
often	O
plays	O
it	O
too	O
safe	O
,	O
but	O
excels	O
when	O
it	O
does	O
n't	O
.	O
"	O
</s>
<s>
Game	O
Informer	O
liked	O
the	O
history	O
videos	O
between	O
missions	O
,	O
but	O
criticized	O
how	O
the	O
game	O
did	O
n't	O
seem	O
to	O
innovate	O
on	O
the	O
formula	O
of	O
its	O
predecessor	O
,	O
feeling	O
that	O
Age	B-Application
of	I-Application
Empires	I-Application
IV	I-Application
"	O
lacks	O
any	O
ambition	O
to	O
even	O
gently	O
jostle	O
the	O
standards	O
set	O
by	O
Age	B-Application
of	I-Application
Empires	I-Application
II	I-Application
decades	O
earlier	O
"	O
.	O
</s>
<s>
Hayes	O
Madsen	O
of	O
CGMagazine	O
summed	O
up	O
his	O
10/10	O
review	O
by	O
saying	O
"	O
Age	B-Application
of	I-Application
Empires	I-Application
IV	I-Application
is	O
a	O
bold	O
and	O
ambitious	O
evolution	O
of	O
the	O
series	O
,	O
and	O
quite	O
likely	O
one	O
of	O
the	O
best	O
RTS	O
games	O
ever	O
made.	O
"	O
</s>
<s>
VG247	O
felt	O
that	O
the	O
game	O
's	O
commitment	O
to	O
historical	O
accuracy	O
set	O
it	O
apart	O
from	O
its	O
strategy	O
game	O
peers	O
"	O
making	O
Age	B-Application
of	I-Application
Empires	I-Application
4	I-Application
more	O
than	O
just	O
another	O
medieval	O
combat	O
simulator	O
"	O
.	O
</s>
<s>
He	O
criticized	O
the	O
dated	O
visuals	O
and	O
the	O
lack	O
of	O
innovativeness	O
regarding	O
the	O
standard	O
Age	B-Application
of	I-Application
Empires	I-Application
formula	O
,	O
saying	O
that	O
the	O
game	O
"	O
rarely	O
ventures	O
out	O
of	O
its	O
comfort	O
zone	O
"	O
.	O
</s>
<s>
Age	B-Application
of	I-Application
Empires	I-Application
IV	I-Application
won	O
the	O
award	O
for	O
"	O
Best	O
Sim/Strategy	O
Game	O
"	O
at	O
The	O
Game	O
Awards	O
2021	O
.	O
</s>
