<s>
Dark	B-Application
Salvation	I-Application
is	O
a	O
gothic	O
horror	O
first-person	O
shooter	O
video	O
game	O
created	O
by	O
the	O
now	O
defunct	O
American	O
developer	O
Mangled	O
Eye	O
Studios	O
,	O
released	O
on	O
July	O
28	O
,	O
2009	O
for	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
Ports	O
of	O
the	O
game	O
for	O
Wii	B-Operating_System
,	O
Linux	B-Application
and	O
macOS	B-Application
systems	O
were	O
planned	O
,	O
but	O
have	O
remained	O
unreleased	O
.	O
</s>
<s>
The	O
original	O
idea	O
behind	O
Dark	B-Application
Salvation	I-Application
was	O
created	O
by	O
Thearrel	O
McKinney	O
in	O
1999	O
,	O
with	O
the	O
goal	O
of	O
creating	O
a	O
mod	O
that	O
added	O
an	O
extra	O
tier	O
to	O
Quake	B-Application
III	I-Application
Arena	I-Application
.	O
</s>
