<s>
Arx	B-Application
Fatalis	I-Application
is	O
an	O
action	B-Application
role-playing	I-Application
video	I-Application
game	I-Application
developed	O
by	O
Arkane	O
Studios	O
and	O
released	O
for	O
Microsoft	B-Application
Windows	I-Application
in	O
2002	O
and	O
Xbox	B-Application
in	O
2003	O
.	O
</s>
<s>
The	O
game	O
's	O
mechanics	O
include	O
the	O
use	O
of	O
mouse	B-Device
gestures	O
to	O
cast	O
spells	O
.	O
</s>
<s>
Arx	B-Application
Fatalis	I-Application
received	O
mostly	O
positive	O
reviews	O
from	O
critics	O
but	O
was	O
not	O
commercially	O
successful	O
.	O
</s>
<s>
On	O
14	O
January	O
2011	O
,	O
Arkane	O
Studios	O
released	O
a	O
1.21	O
patch	O
and	O
the	O
game	O
's	O
source	O
code	O
under	O
the	O
terms	O
of	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
(	O
GPL	B-License
)	O
,	O
though	O
the	O
game	O
assets	O
remain	O
proprietary	O
.	O
</s>
<s>
Arx	B-Application
Fatalis	I-Application
(	O
Latin	O
for	O
"	O
fatal	O
fortress	O
"	O
)	O
is	O
set	O
on	O
a	O
world	O
whose	O
sun	O
has	O
failed	O
,	O
forcing	O
the	O
above-ground	O
creatures	O
to	O
take	O
refuge	O
in	O
caverns	O
.	O
</s>
<s>
The	O
action	O
in	O
Arx	B-Application
Fatalis	I-Application
takes	O
place	O
in	O
one	O
of	O
these	O
large	O
caves	O
,	O
where	O
the	O
members	O
of	O
various	O
races	O
,	O
such	O
as	O
Trolls	B-Application
,	O
Goblins	B-Application
,	O
Dwarves	O
,	O
Humans	O
,	O
etc.	O
,	O
have	O
made	O
their	O
homes	O
on	O
various	O
levels	O
of	O
the	O
cave	O
.	O
</s>
<s>
Arx	B-Application
Fatalis	I-Application
features	O
somewhat	O
open-ended	O
gameplay	O
,	O
allowing	O
the	O
player	O
to	O
allocate	O
skill	O
points	O
for	O
their	O
character	O
type	O
in	O
skills	O
such	O
as	O
spellcasting	B-Application
,	O
weapons	O
and	O
armour	O
,	O
stealth	O
,	O
and	O
so	O
on	O
.	O
</s>
<s>
There	O
is	O
no	O
dialogue	O
system	O
in	O
Arx	B-Application
Fatalis	I-Application
.	O
</s>
<s>
One	O
of	O
the	O
intuitive	O
interfaces	O
in	O
Arx	B-Application
Fatalis	I-Application
is	O
the	O
spellcasting	B-Application
system	O
.	O
</s>
<s>
Using	O
the	O
mouse	B-Device
and	O
the	O
control	B-Device
key	I-Device
,	O
runes	B-Application
are	O
drawn	O
in	O
mid-air	O
with	O
mouse	B-Device
gestures	O
,	O
which	O
must	O
be	O
correctly	O
drawn	O
in	O
order	O
to	O
successfully	O
cast	O
a	O
spell	O
.	O
</s>
<s>
The	O
player	O
can	O
find	O
or	O
buy	O
different	O
runes	B-Application
as	O
gameplay	O
progresses	O
,	O
combinations	O
of	O
which	O
unlock	O
new	O
spells	O
.	O
</s>
<s>
This	O
gestural	O
interface	O
was	O
simplified	O
in	O
the	O
Xbox	B-Application
version	O
to	O
account	O
for	O
the	O
limitations	O
of	O
the	O
joypad	O
.	O
</s>
<s>
Each	O
direction	O
of	O
the	O
directional	O
pad	O
corresponds	O
to	O
a	O
different	O
mouse	B-Device
direction	O
and	O
different	O
combinations	O
of	O
directions	O
are	O
entered	O
with	O
the	O
directional	O
pad	O
to	O
draw	O
runes	B-Application
and	O
correspondingly	O
cast	O
spells	O
.	O
</s>
<s>
In	O
addition	O
,	O
Arx	B-Application
Fatalis	I-Application
supports	O
a	O
stealth	O
mode	O
that	O
is	O
active	O
when	O
a	O
stealth	O
icon	O
is	O
visible	O
on	O
the	O
interface	O
.	O
</s>
<s>
The	O
design	O
of	O
Arx	B-Application
Fatalis	I-Application
was	O
influenced	O
by	O
games	O
from	O
the	O
now-defunct	O
Looking	O
Glass	O
Studios	O
,	O
especially	O
Ultima	B-Application
Underworld	I-Application
.	O
</s>
<s>
Arkane	O
Studios	O
have	O
stated	O
that	O
Arx	B-Application
Fatalis	I-Application
was	O
intended	O
to	O
be	O
Ultima	B-Application
Underworld	I-Application
III	O
;	O
however	O
,	O
while	O
Raphaël	O
Colantonio	O
had	O
support	O
from	O
Paul	O
Neurath	O
,	O
one	O
of	O
the	O
original	O
developers	O
of	O
Ultima	B-Application
Underworld	I-Application
,	O
Electronic	O
Arts	O
,	O
who	O
owned	O
the	O
rights	O
,	O
would	O
not	O
allow	O
Arkane	O
to	O
make	O
a	O
sequel	O
with	O
their	O
intellectual	O
property	O
unless	O
he	O
accepted	O
some	O
of	O
their	O
provisions	O
.	O
</s>
<s>
Colantonio	O
refused	O
to	O
accept	O
this	O
and	O
instead	O
had	O
Arkane	O
set	O
out	O
on	O
the	O
game	O
in	O
the	O
spirit	O
of	O
Ultima	B-Application
Underworld	I-Application
.	O
</s>
<s>
Arx	B-Application
Fatalis	I-Application
was	O
released	O
for	O
Microsoft	B-Application
Windows	I-Application
in	O
2002	O
and	O
for	O
the	O
Xbox	B-Application
in	O
2003	O
.	O
</s>
<s>
In	O
April	O
2007	O
,	O
Arx	B-Application
Fatalis	I-Application
was	O
released	O
on	O
the	O
digital	O
distribution	O
platform	O
Steam	B-Application
,	O
followed	O
by	O
GOG.com	O
in	O
December	O
2008	O
.	O
</s>
<s>
On	O
14	O
January	O
2011	O
,	O
Arkane	O
Studios	O
released	O
a	O
1.21	O
patch	O
and	O
the	O
game	O
's	O
source	O
code	O
under	O
the	O
terms	O
of	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
(	O
GPL	B-License
)	O
.	O
</s>
<s>
Based	O
upon	O
this	O
source	O
code	O
,	O
the	O
Arx	O
Libertatis	O
project	O
was	O
formed	O
to	O
fix	O
bugs	O
and	O
incompatibilities	O
,	O
and	O
to	O
port	O
the	O
game	O
to	O
operating	O
systems	O
such	O
as	O
Linux	B-Application
,	O
FreeBSD	B-Operating_System
and	O
the	O
OpenPandora	B-Device
handheld	B-Application
.	O
</s>
<s>
The	O
PC	O
version	O
of	O
Arx	B-Application
Fatalis	I-Application
received	O
"	O
generally	O
favourable	O
reviews	O
"	O
,	O
while	O
the	O
Xbox	B-Application
version	O
received	O
"	O
average	O
"	O
reviews	O
,	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
Metacritic	O
.	O
</s>
<s>
Arx	B-Application
Fatalis	I-Application
was	O
released	O
after	O
the	O
more	O
successful	O
fantasy	O
role-playing	O
games	O
The	B-Application
Elder	I-Application
Scrolls	I-Application
III	I-Application
:	I-Application
Morrowind	I-Application
and	O
Neverwinter	B-Application
Nights	I-Application
,	O
with	O
reviewers	O
stating	O
that	O
although	O
it	O
is	O
not	O
as	O
open	O
as	O
Morrowind	B-Application
,	O
it	O
will	O
appeal	O
to	O
fans	O
that	O
like	O
dungeon-crawler	O
RPGs	O
,	O
paying	O
homage	O
to	O
games	O
like	O
Ultima	O
:	O
Underworld	O
.	O
</s>
<s>
GameSpot	O
's	O
Greg	O
Kasavin	O
was	O
pleased	O
with	O
the	O
experience	O
that	O
the	O
PC	O
version	O
offered	O
,	O
stating	O
that	O
"	O
Arx	B-Application
Fatalis	I-Application
is	O
entertaining	O
and	O
great	O
looking	O
,	O
and	O
it	O
should	O
especially	O
appeal	O
to	O
fans	O
of	O
other	O
atmospheric	O
first-person	O
games	O
,	O
including	O
Thief	B-Application
:	I-Application
The	I-Application
Dark	I-Application
Project	I-Application
,	O
System	B-Application
Shock	I-Application
2	I-Application
,	O
and	O
Deus	B-Application
Ex	I-Application
,	O
let	O
alone	O
this	O
year	O
's	O
Morrowind	B-Application
.	O
</s>
<s>
Though	O
marred	O
by	O
some	O
technical	O
issues	O
(	O
many	O
of	O
which	O
have	O
already	O
been	O
addressed	O
by	O
patches	O
)	O
and	O
at	O
times	O
confusing	O
to	O
navigate	O
in	O
,	O
Arx	B-Application
Fatalis	I-Application
nevertheless	O
delivers	O
a	O
memorable	O
,	O
original	O
role-playing	O
experience	O
"	O
,	O
and	O
IGN	O
's	O
Dan	O
Adams	O
enjoyed	O
the	O
same	O
PC	O
version	O
,	O
stating	O
that	O
"	O
The	O
atmosphere	O
,	O
spell	O
system	O
,	O
puzzles	O
,	O
voices	O
,	O
and	O
story	O
were	O
good	O
and	O
interesting	O
enough	O
to	O
give	O
me	O
a	O
pretty	O
enjoyable	O
experience.	O
"	O
</s>
<s>
Arx	B-Application
Fatalis	I-Application
was	O
nominated	O
as	O
2002	O
's	O
best	O
computer	O
role-playing	O
game	O
by	O
Computer	O
Gaming	O
World	O
,	O
GameSpot	O
and	O
the	O
Academy	O
of	O
Interactive	O
Arts	O
&	O
Sciences	O
.	O
</s>
<s>
The	O
editors	O
of	O
Computer	O
Gaming	O
World	O
wrote	O
that	O
Arx	B-Application
Fatalis	I-Application
"	O
has	O
hands-down	O
the	O
most	O
annoying	O
interface	O
of	O
the	O
year	O
,	O
but	O
fortunately	O
,	O
it	O
also	O
sports	O
sharp	O
graphics	O
 [ ... ] 	O
and	O
a	O
great	O
story	O
"	O
.	O
</s>
<s>
Arx	B-Application
Fatalis	I-Application
critical	O
praise	O
gave	O
Arkane	O
the	O
opportunity	O
to	O
work	O
with	O
Valve	O
to	O
develop	O
a	O
new	O
title	O
on	O
their	O
Source	B-Application
engine	I-Application
,	O
and	O
Colantonio	O
opted	O
to	O
make	O
a	O
sequel	O
,	O
Arx	B-Application
Fatalis	I-Application
2	O
.	O
</s>
<s>
Arkane	O
was	O
eventually	O
approached	O
by	O
Ubisoft	O
and	O
asked	O
to	O
apply	O
the	O
Arx	B-Application
Fatalis	I-Application
game	O
engine	O
to	O
their	O
Might	B-Application
and	I-Application
Magic	I-Application
.	O
</s>
<s>
This	O
became	O
Dark	B-Application
Messiah	I-Application
of	I-Application
Might	I-Application
and	I-Application
Magic	I-Application
,	O
released	O
in	O
October	O
2006	O
.	O
</s>
<s>
It	O
refined	O
the	O
first-person	O
melee	O
combat	O
of	O
Arx	B-Application
Fatalis	I-Application
with	O
a	O
lesser	O
emphasis	O
on	O
role-playing	O
elements	O
.	O
</s>
