<s>
Korsakovia	B-Application
is	O
a	O
single-player	O
mod	O
for	O
Valve	O
's	O
video	O
game	O
Half-Life	B-Application
2	I-Application
.	O
</s>
<s>
Korsakovia	B-Application
was	O
released	O
as	O
freeware	B-License
download	O
on	O
20	O
September	O
2009	O
.	O
</s>
<s>
In	O
Korsakovia	B-Application
,	O
the	O
player	O
travels	O
through	O
the	O
delusions	O
of	O
Christopher	O
,	O
a	O
man	O
suffering	O
from	O
Korsakoff	O
's	O
syndrome	O
.	O
</s>
<s>
The	O
player	O
has	O
the	O
standard	O
Half-Life	B-Application
2	I-Application
flashlight	O
,	O
but	O
it	O
often	O
runs	O
out	O
of	O
electricity	O
and	O
must	O
be	O
turned	O
off	O
to	O
recharge	O
.	O
</s>
<s>
Like	O
Thechineseroom	O
's	O
previous	O
mod	O
,	O
Dear	B-Application
Esther	I-Application
,	O
the	O
player	O
explores	O
the	O
environment	O
while	O
listening	O
to	O
narration	O
.	O
</s>
