<s>
UFO	B-Application
:	I-Application
Aftershock	I-Application
is	O
a	O
real-time	O
tactics/turn	O
-based	O
strategy	O
video	O
game	O
developed	O
by	O
Altar	O
Interactive	O
and	O
released	O
by	O
Cenega	O
Publishing	O
in	O
Europe	O
and	O
Tri	O
Synergy	O
in	O
North	O
America	O
in	O
2005	O
.	O
</s>
<s>
It	O
is	O
a	O
squad	O
combat	O
game	O
at	O
its	O
core	O
with	O
overlying	O
strategic	O
elements	O
inspired	O
by	O
the	O
1994	O
classic	O
X-COM	B-Application
:	I-Application
UFO	I-Application
Defense	I-Application
,	O
though	O
less	O
than	O
its	O
own	O
2004	O
predecessor	O
,	O
UFO	B-Application
:	I-Application
Aftermath	I-Application
.	O
</s>
<s>
It	O
was	O
followed	O
by	O
UFO	B-Application
:	I-Application
Afterlight	I-Application
in	O
2007	O
.	O
</s>
<s>
The	O
combat	O
section	O
of	O
the	O
game	O
uses	O
a	O
real-time	O
system	O
with	O
adjustable	O
speed	O
along	O
with	O
a	O
pause	O
option	O
,	O
and	O
it	O
has	O
been	O
improved	O
from	O
the	B-Application
previous	I-Application
game	I-Application
,	O
with	O
added	O
features	O
such	O
as	O
multilevel	O
battlefields	O
and	O
accessible	O
buildings	O
,	O
but	O
also	O
lacks	O
some	O
previous	O
features	O
,	O
such	O
as	O
destructible	O
terrain	O
.	O
</s>
<s>
As	O
a	O
departure	O
from	O
both	O
the	O
X-COM	B-Application
series	O
and	O
the	O
prequel	O
,	O
there	O
is	O
no	O
air-to-air	O
interception	O
.	O
</s>
<s>
Aftershock	O
is	O
set	O
in	O
a	O
post-apocalyptic	O
2050	O
,	O
after	O
the	O
events	O
of	O
UFO	B-Application
:	I-Application
Aftermath	I-Application
.	O
</s>
<s>
UFO	B-Application
:	I-Application
Aftershock	I-Application
was	O
released	O
in	O
Europe	O
on	O
21	O
October	O
2005	O
and	O
in	O
North	O
America	O
on	O
23	O
November	O
2005	O
.	O
</s>
<s>
An	O
Xbox	B-Protocol
version	O
was	O
planned	O
for	O
release	O
in	O
Europe	O
but	O
cancelled	O
.	O
</s>
<s>
The	O
publisher	O
granted	O
a	O
license	O
to	O
the	O
Czech	O
company	O
Redboss	O
Games	O
,	O
a	O
subsidiary	O
of	O
Redboss	O
,	O
which	O
they	O
used	O
to	O
create	O
a	O
mobile	O
version	O
of	O
UFO	B-Application
:	I-Application
Aftershock	I-Application
.	O
</s>
<s>
A	O
sequel	O
and	O
third	O
game	O
in	O
the	O
series	O
was	O
released	O
two	O
years	O
after	O
Aftershock	O
,	O
titled	O
UFO	B-Application
:	I-Application
Afterlight	I-Application
,	O
to	O
execute	O
the	O
same	O
concept	O
on	O
Mars	B-Application
.	O
</s>
