<s>
Sid	B-Application
Meier	I-Application
's	I-Application
Civilization	I-Application
Revolution	I-Application
is	O
a	O
4X	B-Application
,	O
turn-based	O
strategy	O
game	O
developed	O
in	O
2008	O
by	O
Firaxis	O
Games	O
with	O
Sid	O
Meier	O
as	O
designer	O
.	O
</s>
<s>
The	O
video	O
game	O
was	O
released	O
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
,	O
Xbox	B-Operating_System
360	I-Operating_System
,	O
Nintendo	B-Device
DS	I-Device
,	O
Windows	B-Protocol
Phone	I-Protocol
,	O
and	O
iOS	B-Application
.	O
</s>
<s>
A	O
Wii	B-Operating_System
version	O
was	O
originally	O
expected	O
but	O
was	O
cancelled	O
.	O
</s>
<s>
The	O
absence	O
of	O
a	O
PlayStation	B-Operating_System
Portable	I-Operating_System
version	O
was	O
attributed	O
to	O
a	O
lack	O
of	O
development	O
manpower	O
.	O
</s>
<s>
A	O
demo	O
was	O
released	O
on	O
Xbox	B-Operating_System
Live	O
Marketplace	O
and	O
the	O
North	O
American	O
PlayStation	O
Store	O
on	O
June	O
5	O
,	O
2008	O
.	O
</s>
<s>
The	O
demo	O
allows	O
players	O
to	O
play	O
until	O
1250	O
AD	O
on	O
a	O
fixed	O
map	O
as	O
Cleopatra	B-Application
or	O
Julius	O
Caesar	O
,	O
and	O
also	O
allows	O
multiplayer	O
play	O
.	O
</s>
<s>
A	O
similar	O
demo	O
,	O
Civilization	B-Application
Revolution	I-Application
Lite	O
,	O
was	O
released	O
for	O
iOS	B-Application
that	O
allows	O
play	O
until	O
the	O
Modern	O
Era	O
as	O
Julius	O
Caesar	O
,	O
Abraham	O
Lincoln	O
,	O
or	O
Genghis	B-Application
Khan	I-Application
.	O
</s>
<s>
It	O
is	O
also	O
available	O
on	O
Xbox	B-Operating_System
Live	O
Marketplace	O
as	O
a	O
download	O
.	O
</s>
<s>
A	O
sequel	O
,	O
Civilization	B-Application
Revolution	I-Application
2	I-Application
,	O
was	O
released	O
on	O
July	O
2	O
,	O
2014	O
.	O
</s>
<s>
The	O
original	O
game	O
was	O
removed	O
from	O
the	O
iOS	B-Application
App	I-Application
Store	I-Application
on	O
September	O
1	O
,	O
2016	O
.	O
</s>
<s>
The	O
main	O
game	O
of	O
Civilization	B-Application
Revolution	I-Application
begins	O
in	O
4000	O
BC	O
,	O
with	O
a	O
lone	O
settler	O
unit	O
in	O
the	O
middle	O
of	O
a	O
little-explored	O
region	O
.	O
</s>
<s>
In	O
the	O
early	O
stages	O
of	O
the	O
game	O
,	O
uncivilized	O
villages	O
consisting	O
of	O
primitives	O
,	O
such	O
as	O
barbarians	B-Application
,	O
and	O
friendly	O
villages	O
will	O
be	O
encountered	O
.	O
</s>
<s>
Civilization	B-Application
Revolution	I-Application
is	O
a	O
turn	O
based	O
strategy	O
game	O
,	O
with	O
every	O
turn	O
representing	O
the	O
passage	O
of	O
several	O
years	O
within	O
the	O
game	O
,	O
which	O
changes	O
from	O
100	O
years	O
in	O
the	O
beginning	O
to	O
two	O
years	O
by	O
the	O
end	O
,	O
reflecting	O
the	O
faster	O
pace	O
of	O
contemporary	O
society	O
made	O
possible	O
by	O
technological	O
advancements	O
.	O
</s>
<s>
Technological	O
:	O
Research	O
all	O
technologies	O
necessary	O
to	O
build	O
and	O
launch	O
a	O
space	O
ship	O
and	O
be	O
the	O
first	O
to	O
reach	O
Alpha	B-Application
Centauri	I-Application
.	O
</s>
<s>
The	O
construction	O
of	O
the	O
World	O
Bank	O
,	O
the	O
construction	O
of	O
the	O
United	O
Nations	O
,	O
and	O
the	O
launching	O
of	O
the	O
ship	O
to	O
Alpha	B-Application
Centauri	I-Application
can	O
all	O
be	O
stopped	O
by	O
capturing	O
the	O
enemy	O
's	O
capital	O
and	O
palace	O
.	O
</s>
<s>
There	O
are	O
also	O
non-player	O
characters	O
(	O
NPCs	O
)	O
barbarians	B-Application
who	O
will	O
declare	O
war	O
on	O
any	O
civilization	O
they	O
encounter	O
,	O
regardless	O
of	O
that	O
civilization	O
's	O
strength	O
or	O
their	O
own	O
.	O
</s>
<s>
In	O
contrast	O
to	O
the	O
barbarians	B-Application
in	O
previous	O
installments	O
of	O
the	O
Civilization	O
series	O
,	O
the	O
barbarians	B-Application
in	O
Civilization	B-Application
Revolution	I-Application
live	O
in	O
villages	O
and	O
generally	O
attack	O
from	O
them	O
,	O
although	O
they	O
occasionally	O
venture	O
toward	O
nearby	O
units	O
or	O
cities	O
.	O
</s>
<s>
In	O
addition	O
,	O
the	O
level	O
of	O
barbarian	B-Application
activity	O
cannot	O
be	O
adjusted	O
as	O
in	O
previous	O
installments	O
,	O
although	O
the	O
level	O
of	O
barbarian	B-Application
activity	O
changes	O
in	O
certain	O
scenarios	O
.	O
</s>
<s>
Civilization	B-Application
Revolution	I-Application
features	O
multiplayer	O
options	O
,	O
including	O
match	O
making	O
and	O
ranked	O
games	O
for	O
up	O
to	O
four	O
players	O
(	O
in	O
free-for-all	O
,	O
one-on-one	O
,	O
and	O
two-on-two	O
team	O
battle	O
modes	O
)	O
,	O
as	O
well	O
as	O
leaderboards	O
and	O
support	O
for	O
voice	O
and	O
video	O
chat	O
.	O
</s>
<s>
Although	O
many	O
critics	O
and	O
players	O
agree	O
that	O
the	O
multiplayer	O
is	O
slow	O
,	O
there	O
is	O
an	O
option	O
to	O
turn	O
on	O
a	O
turn	O
timer	O
such	O
as	O
in	O
chess	B-Application
to	O
attempt	O
to	O
make	O
the	O
game	O
go	O
faster	O
and	O
one	O
can	O
only	O
use	O
the	O
diplomacy	O
panel	O
and	O
the	O
city	O
screen	O
during	O
other	O
players	O
 '	O
turns	O
.	O
</s>
<s>
On	O
February	O
4	O
,	O
2008	O
2K	O
Games	O
and	O
Firaxis	O
announced	O
that	O
the	B-Operating_System
Wii	I-Operating_System
version	O
of	O
Civilization	B-Application
Revolution	I-Application
was	O
put	O
on	O
indefinite	O
hold	O
due	O
to	O
lack	O
of	O
manpower	O
and	O
no	O
PlayStation	B-Device
2	I-Device
or	O
PlayStation	B-Operating_System
Portable	I-Operating_System
editions	O
of	O
the	O
game	O
to	O
share	O
assets	O
with	O
.	O
</s>
<s>
Firaxis	O
programmer	O
Scott	O
Lewis	O
explained	O
,	O
"	O
CivRev	B-Application
was	O
originally	O
an	O
Xbox	O
360/PlayStation	O
3	O
project	O
and	O
was	O
in	O
development	O
for	O
over	O
a	O
year	O
before	O
the	O
Wii/DS	O
platforms	O
were	O
added	O
.	O
</s>
<s>
On	O
June	O
10	O
,	O
2008	O
,	O
Sid	O
Meier	O
reaffirmed	O
plans	O
to	O
develop	O
a	O
Wii	B-Operating_System
version	O
,	O
stating	O
that	O
Firaxis	O
had	O
"	O
no	O
intentions	O
of	O
turning	O
backs	O
on	O
the	B-Operating_System
Wii	I-Operating_System
version	O
"	O
.	O
</s>
<s>
However	O
,	O
there	O
were	O
no	O
further	O
updates	O
about	O
the	O
developmental	O
status	O
of	O
the	O
planned	O
Wii	B-Operating_System
version	O
to	O
this	O
day	O
,	O
and	O
thus	O
it	O
remains	O
unreleased	O
.	O
</s>
<s>
On	O
August	O
10	O
,	O
2009	O
,	O
2K	O
Games	O
released	O
an	O
iPhone	B-Device
version	O
of	O
Civilization	B-Application
Revolution	I-Application
in	O
the	O
App	B-Application
Store	I-Application
,	O
followed	O
by	O
the	O
iPad	B-Device
version	O
on	O
April	O
2	O
,	O
2010	O
,	O
available	O
in	O
various	O
countries	O
,	O
including	O
the	O
US	O
,	O
UK	O
and	O
Australia	O
.	O
</s>
<s>
On	O
April	O
4	O
,	O
2012	O
,	O
it	O
was	O
released	O
for	O
Windows	B-Protocol
Phone	I-Protocol
.	O
</s>
<s>
Players	O
would	O
compete	O
to	O
earn	O
the	O
best	O
Civilization	B-Application
Revolution	I-Application
leaderboard	O
score	O
for	O
that	O
scenario	O
during	O
that	O
week	O
.	O
</s>
<s>
Firaxis	O
also	O
released	O
DLC	O
for	O
the	O
console	O
versions	O
which	O
included	O
wonders	O
,	O
relics	O
,	O
and	O
even	O
specific	O
maps	O
such	O
as	O
deserts	O
,	O
continent	O
look-alikes	O
and	O
several	O
others	O
;	O
new	O
wonders	O
include	O
the	O
Tower	B-Application
of	I-Application
Babel	I-Application
,	O
the	O
Leaning	O
Tower	O
of	O
Pisa	O
and	O
several	O
others	O
which	O
can	O
be	O
utilized	O
in	O
game	O
like	O
any	O
other	O
wonder	O
.	O
</s>
<s>
The	O
DS	B-Device
,	O
PlayStation	B-Operating_System
3	I-Operating_System
,	O
and	O
Xbox	B-Operating_System
360	I-Operating_System
versions	O
received	O
"	O
generally	O
favorable	O
reviews	O
"	O
according	O
to	O
the	O
website	O
Metacritic	O
,	O
a	O
review	B-Application
aggregator	I-Application
.	O
</s>
<s>
GameSpot	O
praised	O
the	O
gameplay	O
and	O
visual	O
design	O
of	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
and	O
Xbox	B-Operating_System
360	I-Operating_System
versions	O
but	O
found	O
the	O
multiplayer	O
to	O
be	O
slow	O
.	O
</s>
<s>
In	O
Japan	O
,	O
where	O
the	O
same	O
console	O
versions	O
were	O
ported	O
and	O
published	O
by	O
CyberFront	O
on	O
December	O
25	O
,	O
2008	O
,	O
followed	O
by	O
the	O
DS	B-Device
version	O
on	O
January	O
29	O
,	O
2009	O
,	O
Famitsu	O
gave	O
it	O
a	O
score	O
of	O
one	O
six	O
,	O
one	O
eight	O
,	O
and	O
two	O
sevens	O
for	O
the	O
latter	O
console	O
version	O
,	O
and	O
three	O
eights	O
and	O
one	O
seven	O
for	O
the	O
former	O
two	O
console	O
versions	O
.	O
</s>
<s>
Edge	O
gave	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
version	O
a	O
score	O
of	O
eight	O
out	O
of	O
ten	O
in	O
its	O
July	O
2008	O
issue	O
,	O
saying	O
,	O
"	O
While	O
the	O
streamlined	O
and	O
brisk	O
approach	O
that	O
brushes	O
over	O
some	O
of	O
the	O
minutiae	O
of	O
the	O
previous	O
games	O
might	O
cause	O
some	O
PC	O
fans	O
to	O
baulk	O
,	O
Revolution	O
has	O
concentrated	O
rather	O
than	O
diluted	O
the	O
Civ	O
experience	O
,	O
creating	O
an	O
expression	O
of	O
the	O
concept	O
that	O
's	O
perfectly	O
suited	O
to	O
its	O
platform.	O
"	O
</s>
<s>
Three	O
issues	O
later	O
,	O
however	O
,	O
the	O
magazine	O
gave	O
the	O
DS	B-Device
version	O
seven	O
out	O
of	O
ten	O
,	O
saying	O
,	O
"	O
In	O
terms	O
of	O
distilling	O
the	O
core	O
Civilization	O
experience	O
from	O
PC	O
to	O
handheld	O
,	O
this	O
is	O
almost	O
as	O
victorious	O
as	O
the	O
PC-to-console	O
iterations.	O
"	O
</s>
<s>
Steven	O
Hopper	O
of	O
GameZone	O
gave	O
the	O
same	O
DS	B-Device
version	O
7.5	O
out	O
of	O
10	O
,	O
saying	O
that	O
it	O
"	O
capitalizes	O
on	O
the	O
DS	B-Device
's	O
strengths	O
with	O
some	O
great	O
stylus-based	O
controls	O
.	O
</s>
<s>
Michael	O
Lafferty	O
gave	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
version	O
8.7	O
out	O
of	O
10	O
,	O
saying	O
that	O
it	O
"	O
plays	O
very	O
well	O
on	O
the	B-Operating_System
PS3	I-Operating_System
with	O
intuitive	O
controls	O
,	O
solid	O
graphics	O
,	O
and	O
streamlined	O
game	O
mechanics	O
that	O
ensure	O
entertainment	O
value.	O
"	O
</s>
<s>
Nick	O
Valentino	O
gave	O
the	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
version	O
8.9	O
out	O
of	O
10	O
,	O
calling	O
it	O
"	O
a	O
genuinely	O
addictive	O
simulator	O
that	O
will	O
not	O
fail	O
to	O
impress	O
and	O
please	O
fans	O
of	O
the	O
Civ	O
series.	O
"	O
</s>
<s>
Michael	O
Knutson	O
later	O
gave	O
the	O
iPhone	B-Device
version	O
8.7	O
out	O
of	O
10	O
,	O
saying	O
,	O
"	O
Civilization	B-Application
Revolution	I-Application
is	O
a	O
good	O
game	O
for	O
the	O
iPhone	B-Device
,	O
which	O
could	O
have	O
been	O
even	O
better	O
.	O
</s>
<s>
Even	O
with	O
these	O
issues	O
players	O
will	O
not	O
want	O
to	O
miss	O
out	O
on	O
Civilization	B-Application
Revolution	I-Application
for	O
the	O
iPhone.	O
"	O
</s>
<s>
Darren	O
Jones	O
of	O
Retro	O
Gamer	O
gave	O
the	O
DS	B-Device
version	O
70%	O
,	O
saying	O
,	O
"	O
If	O
you	O
want	O
a	O
'	O
Civ	O
Lite	O
 '	O
to	O
play	O
on	O
the	O
bus	O
-	O
due	O
to	O
'	O
proper	O
 '	O
Civ	O
demanding	O
too	O
much	O
time	O
-	O
this	O
largely	O
succeeds	O
.	O
</s>
<s>
George	O
Jones	O
of	O
GamePro	O
gave	O
the	B-Operating_System
PS3	I-Operating_System
version	O
a	O
score	O
of	O
4.25	O
out	O
of	O
5	O
,	O
saying	O
,	O
"	O
Cerebral	O
gamers	O
and	O
those	O
with	O
world-conquering	O
ambitions	O
should	O
definitely	O
give	O
this	O
one	O
a	O
try.	O
"	O
</s>
<s>
The	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
version	O
won	O
Strategy	O
Game	O
of	O
the	O
Year	O
at	O
the	O
2008	O
Official	O
Xbox	B-Operating_System
Magazine	O
Awards	O
.	O
</s>
<s>
The	O
game	O
sold	O
147,600	O
units	O
on	O
Xbox	B-Operating_System
360	I-Operating_System
in	O
North	O
America	O
during	O
July	O
2008	O
.	O
</s>
<s>
The	O
iOS	B-Application
version	O
was	O
the	O
ninth	O
best-selling	O
game	O
for	O
the	O
iPhone	B-Device
and	O
iPod	O
Touch	O
in	O
2009	O
.	O
</s>
