<s>
Scanner	B-Application
Sombre	I-Application
is	O
a	O
cave	O
exploration	O
video	O
game	O
developed	O
by	O
Introversion	O
Software	O
.	O
</s>
<s>
Scanner	B-Application
Sombre	I-Application
is	O
exploration	O
video	O
game	O
played	O
from	O
a	O
first-person	O
perspective	O
.	O
</s>
<s>
The	O
player	O
awakens	O
in	O
a	O
tent	O
inside	O
a	O
cave	O
;	O
after	O
finding	O
an	O
augmented	B-Device
reality	I-Device
headset	I-Device
and	O
a	O
LIDAR	O
scanner	O
,	O
the	O
player	O
can	O
illuminate	O
the	O
surrounding	O
environment	O
using	O
dots	O
.	O
</s>
<s>
Scanner	B-Application
Sombre	I-Application
was	O
developed	O
by	O
Introversion	O
Software	O
.	O
</s>
<s>
The	O
prototype	O
was	O
developed	O
in	O
one	O
month	O
during	O
2015	O
by	O
several	O
members	O
at	O
the	O
studio	O
while	O
they	O
were	O
working	O
on	O
content	O
updates	O
for	O
their	O
previous	O
game	O
Prison	B-Application
Architect	I-Application
.	O
</s>
<s>
The	O
game	O
was	O
released	O
for	O
macOS	B-Application
and	O
Windows	B-Application
on	O
26	O
April	O
2017	O
.	O
</s>
<s>
Introversion	O
markets	O
the	O
game	O
as	O
being	O
inspired	O
by	O
Gone	B-Application
Home	I-Application
and	O
Dear	B-Application
Esther	I-Application
.	O
</s>
<s>
Virtual	B-Application
reality	I-Application
compatibility	O
has	O
been	O
implemented	O
into	O
the	O
game	O
post-release	O
,	O
supporting	O
both	O
the	O
HTC	O
Vive	O
and	O
Oculus	B-Device
Rift	I-Device
,	O
and	O
was	O
released	O
in	O
late	O
June	O
2017	O
.	O
</s>
<s>
The	O
Scanner	B-Application
Sombre	I-Application
Soundtrack	O
had	O
been	O
created	O
by	O
Alistair	O
Lindsay	O
,	O
it	O
was	O
released	O
as	O
a	O
free	O
download	O
on	O
14	O
Aug	O
,	O
2018	O
.	O
</s>
<s>
Scanner	B-Application
Sombre	I-Application
received	O
"	O
mixed	O
or	O
average	O
"	O
reviews	O
from	O
professional	O
critics	O
according	O
to	O
review	B-Application
aggregator	I-Application
website	O
Metacritic	O
.	O
</s>
