<s>
Xenonauts	B-Application
is	O
a	O
turn-based	B-Application
science	O
fiction	O
video	O
game	O
developed	O
and	O
published	O
as	O
the	O
maiden	O
title	O
of	O
London-based	O
independent	O
game	O
studio	O
Goldhawk	B-Application
Interactive	I-Application
.	O
</s>
<s>
Inspired	O
by	O
the	O
1994	O
game	O
X-COM	B-Application
:	I-Application
UFO	I-Application
Defense	I-Application
,	O
gameplay	O
involves	O
the	O
player	O
taking	O
the	O
role	O
of	O
the	O
commander	O
of	O
a	O
clandestine	O
organization	O
known	O
as	O
the	O
Xenonauts	B-Application
,	O
and	O
attempting	O
to	O
defeat	O
an	O
alien	O
invasion	O
of	O
Earth	O
in	O
the	O
alternate	O
history	O
year	O
1979	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
on	O
June	O
17	O
,	O
2014	O
for	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
Ports	O
to	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
and	O
Linux	B-Application
were	O
initially	O
based	O
on	O
the	O
Wine	B-Application
compatibility	I-Application
layer	I-Application
,	O
until	O
native	O
ports	O
became	O
available	O
in	O
September	O
2015	O
.	O
</s>
<s>
The	O
game	O
utilizes	O
the	O
fundamental	O
mechanics	O
of	O
the	O
early	O
X-COM	B-Application
games	O
,	O
in	O
this	O
case	O
considered	O
to	O
be	O
the	O
real-time	O
global	O
air	O
control	O
and	O
strategic	O
management	O
and	O
research	O
components	O
of	O
the	O
game	O
,	O
coupled	O
with	O
turn-based	B-Application
ground	O
combat	O
where	O
the	O
player	O
controls	O
a	O
squad	O
of	O
soldiers	O
and	O
vehicles	O
against	O
the	O
alien	O
forces	O
.	O
</s>
<s>
Features	O
advertised	O
by	O
Goldhawk	O
as	O
"	O
enhancements	O
"	O
to	O
the	O
original	O
X-COM	B-Application
model	O
include	O
the	O
following	O
:	O
</s>
<s>
An	O
improved	O
air	O
combat	O
model	O
(	O
in	O
real-time	O
with	O
pause	O
mode	O
)	O
that	O
allows	O
combat	O
between	O
up	O
to	O
three	O
aircraft/UFOs	O
on	O
each	O
side	O
.	O
</s>
<s>
In	O
an	O
alternate	O
history	O
1958	O
,	O
an	O
alien	O
UFO	B-Application
enters	O
Earth	O
's	O
atmosphere	O
over	O
Iceland	O
and	O
is	O
immediately	O
hostile	O
to	O
the	O
fighters	O
scrambled	O
to	O
intercept	O
it	O
.	O
</s>
<s>
The	O
United	O
States	O
and	O
Soviet	O
Union	O
use	O
nuclear	O
missiles	O
to	O
shoot	O
down	O
the	O
UFO	B-Application
,	O
which	O
then	O
self-destructs	O
.	O
</s>
<s>
The	O
governments	O
of	O
the	O
world	O
realise	O
that	O
a	O
hostile	O
interstellar	O
alien	O
race	O
is	O
too	O
much	O
for	O
any	O
of	O
them	O
to	O
face	O
alone	O
,	O
so	O
the	O
Xenonauts	B-Application
are	O
founded	O
to	O
combat	O
the	O
alien	O
menace	O
if	O
and	O
when	O
it	O
returns	O
.	O
</s>
<s>
Initially	O
only	O
the	O
smallest	O
UFOs	B-Application
are	O
able	O
to	O
fly	O
in	O
Earth	O
's	O
atmosphere	O
,	O
but	O
the	O
aliens	O
quickly	O
modify	O
their	O
ships	O
to	O
enable	O
incursion	O
by	O
larger	O
vessels	O
.	O
</s>
<s>
While	O
the	O
Xenonauts	B-Application
are	O
successful	O
in	O
shooting	O
down	O
and	O
researching	O
alien	O
craft	O
,	O
weapons	O
and	O
biology	O
,	O
the	O
alien	O
forces	O
in	O
orbit	O
are	O
seemingly	O
endless	O
.	O
</s>
<s>
The	O
Xenonauts	B-Application
implement	O
a	O
two-pronged	O
plan	O
to	O
defeat	O
the	O
alien	O
invasion	O
-	O
they	O
develop	O
and	O
activate	O
a	O
hyperspace	O
inhibition	O
field	O
,	O
which	O
prevents	O
any	O
future	O
alien	O
forces	O
coming	O
to	O
Earth	O
,	O
then	O
infiltrate	O
the	O
alien	O
mothership	O
and	O
assassinate	O
the	O
High	O
Praetor	O
,	O
rendering	O
the	O
entire	O
alien	O
fleet	O
around	O
Earth	O
inactive	O
.	O
</s>
<s>
Development	O
of	O
Xenonauts	B-Application
began	O
in	O
2009	O
.	O
</s>
<s>
The	O
game	O
was	O
heavily	O
influenced	O
by	O
the	O
X-COM	B-Application
series	O
but	O
is	O
described	O
by	O
the	O
development	O
team	O
as	O
neither	O
a	O
remake	O
nor	O
a	O
clone	O
,	O
but	O
rather	O
a	O
"	O
re-imagining	O
"	O
.	O
</s>
<s>
It	O
was	O
marketed	O
as	O
a	O
Cold	O
War-era	O
based	O
"	O
planetary	O
defense	O
simulator	O
"	O
and	O
as	O
a	O
direct	O
competitor	O
to	O
2K	O
Marin	O
's	O
The	B-Application
Bureau	I-Application
:	I-Application
XCOM	I-Application
Declassified	I-Application
,	O
which	O
at	O
the	O
time	O
had	O
alienated	O
many	O
fans	O
due	O
to	O
its	O
FPS-based	O
gameplay	O
.	O
</s>
<s>
Xenonauts	B-Application
for	O
Windows	O
reached	O
beta	O
and	O
launched	O
on	O
Steam	B-Application
Early	O
Access	O
in	O
June	O
2013	O
.	O
</s>
<s>
In	O
2015	O
,	O
Goldhawk	B-Application
Interactive	I-Application
hinted	O
that	O
they	O
were	O
designing	O
and	O
prototyping	O
a	O
sequel	O
.	O
</s>
<s>
In	O
February	O
2016	O
,	O
Xenonauts	B-Application
2	I-Application
was	O
officially	O
announced	O
.	O
</s>
<s>
The	O
game	O
is	O
being	O
developed	O
in	O
the	O
Unity	B-Application
game	I-Application
engine	I-Application
,	O
making	O
use	O
of	O
3D	O
graphics	O
.	O
</s>
<s>
Xenonauts	B-Application
was	O
generally	O
well	O
received	O
by	O
critics	O
,	O
receiving	O
a	O
score	O
of	O
85%	O
from	O
PC	O
Gamer	O
,	O
and	O
a	O
77%	O
on	O
Metacritic	O
,	O
based	O
on	O
21	O
reviews	O
.	O
</s>
<s>
Shortly	O
after	O
the	O
release	O
of	O
the	O
stable	O
version	O
Goldhawk	B-Application
Interactive	I-Application
allowed	O
selected	O
members	O
of	O
the	O
community	O
to	O
access	O
the	O
source	O
code	O
.	O
</s>
<s>
This	O
resulted	O
in	O
the	O
Windows	O
only	O
platform	O
based	O
community	O
edition	O
of	O
the	O
game	O
,	O
called	O
Xenonauts:Community	O
Edition	O
,	O
which	O
continues	O
development	O
of	O
an	O
independent	B-Application
branch	I-Application
of	O
the	O
game	O
,	O
adding	O
new	O
features	O
and	O
bugfixes	O
.	O
</s>
<s>
The	O
1.5	O
version	O
of	O
Xenonauts	B-Application
incorporated	O
a	O
large	O
number	O
of	O
these	O
changes	O
.	O
</s>
