<s>
Aces	B-Application
Game	I-Application
Studio	I-Application
(	O
ACES	O
)	O
was	O
an	O
American	O
video	O
game	O
developer	O
based	O
in	O
Redmond	O
,	O
Washington	O
,	O
owned	O
by	O
Microsoft	O
Game	O
Studios	O
.	O
</s>
<s>
It	O
was	O
founded	O
in	O
1988	O
under	O
the	O
name	O
Bruce	O
Artwick	O
Organization	O
Limited	O
(	O
BAO	O
Ltd	O
.	O
)	O
at	O
Champaign	O
,	O
Illinois	O
,	O
by	O
Bruce	O
Artwick	O
,	O
creator	O
of	O
Microsoft	B-Operating_System
Flight	I-Operating_System
Simulator	I-Operating_System
,	O
Microsoft	B-Application
Space	I-Application
Simulator	I-Application
and	O
also	O
co-founder	O
of	O
Sublogic	O
.	O
</s>
<s>
The	O
studio	O
continued	O
to	O
develop	O
its	O
simulation	O
games	O
,	O
acting	O
as	O
the	O
developer	O
of	O
the	O
Microsoft	B-Operating_System
Flight	I-Operating_System
Simulator	I-Operating_System
and	O
Microsoft	B-Application
Combat	I-Application
Flight	I-Application
Simulator	I-Application
series	O
.	O
</s>
<s>
The	O
group	O
had	O
also	O
assisted	O
Kuju	O
Entertainment	O
in	O
developing	O
Microsoft	B-Application
Train	I-Application
Simulator	I-Application
.	O
</s>
<s>
With	O
the	O
launch	O
of	O
the	O
first	B-Application
Xbox	I-Application
console	I-Application
,	O
the	O
group	O
was	O
moved	O
to	O
Microsoft	O
Games	O
(	O
later	O
renamed	O
Microsoft	O
Game	O
Studios	O
)	O
in	O
2000	O
and	O
renamed	O
to	O
Aces	B-Application
Game	I-Application
Studio	I-Application
in	O
2002	O
.	O
</s>
<s>
They	O
worked	O
with	O
Stormfront	O
Studios	O
to	O
develop	O
Blood	B-Application
Wake	I-Application
as	O
a	O
launch	O
title	O
for	O
the	O
Xbox	B-Application
in	O
2001	O
.	O
</s>
<s>
In	O
the	O
following	O
years	O
,	O
Aces	O
led	O
development	O
on	O
the	O
next	O
three	O
iterations	O
of	O
Microsoft	B-Operating_System
Flight	I-Operating_System
Simulator	I-Operating_System
,	O
including	O
Microsoft	B-Application
Flight	I-Application
Simulator	I-Application
2004	I-Application
:	I-Application
A	I-Application
Century	I-Application
of	I-Application
Flight	I-Application
(	O
2004	O
)	O
and	O
Microsoft	B-Application
Flight	I-Application
Simulator	I-Application
X	I-Application
(	O
2006	O
)	O
.	O
</s>
<s>
As	O
part	O
of	O
a	O
move	O
that	O
cut	O
5,000	O
jobs	O
at	O
Microsoft	O
,	O
Aces	B-Application
Game	I-Application
Studio	I-Application
was	O
closed	O
on	O
January	O
22	O
,	O
2009	O
.	O
</s>
<s>
In	O
October	O
2009	O
,	O
Rick	O
Selby	O
and	O
Kathie	O
Flood	O
,	O
alongside	O
other	O
former	O
members	O
of	O
Aces	B-Application
Game	I-Application
Studio	I-Application
,	O
launched	O
a	O
new	O
studio	O
,	O
Cascade	O
Game	O
Foundry	O
,	O
for	O
the	O
development	O
of	O
simulation	O
games	O
.	O
</s>
<s>
Notable	O
alumni	O
of	O
Aces	O
include	O
Rod	O
Fergusson	O
,	O
who	O
after	O
Aces	O
worked	O
at	O
both	O
Epic	O
Games	O
and	O
The	O
Coalition	O
as	O
one	O
of	O
the	O
lead	O
designers	O
in	O
the	O
Gears	B-Application
of	I-Application
War	I-Application
series	O
.	O
</s>
