<s>
Iron	B-Application
Lung	I-Application
is	O
a	O
2022	O
first-person	O
immersion	O
horror	B-Application
game	I-Application
developed	O
by	O
David	B-Application
Szymanski	I-Application
.	O
</s>
<s>
The	O
player	O
controls	O
an	O
unnamed	O
convict	O
who	O
explores	O
an	O
ocean	O
of	O
blood	O
on	O
a	O
desolate	O
moon	O
in	O
a	O
rusty	O
submarine	O
nicknamed	O
the	O
"	O
Iron	B-Application
Lung	I-Application
"	O
.	O
</s>
<s>
It	O
was	O
released	O
on	O
March	O
10	O
,	O
2022	O
for	O
Microsoft	B-Application
Windows	I-Application
to	O
positive	O
critical	O
reception	O
.	O
</s>
<s>
A	O
Nintendo	B-Application
Switch	I-Application
port	O
was	O
released	O
on	O
December	O
19	O
,	O
2022	O
.	O
</s>
<s>
A	O
film	O
adaptation	O
of	O
Iron	B-Application
Lung	I-Application
,	O
starring	O
and	O
directed	O
by	O
Markiplier	O
,	O
was	O
announced	O
on	O
April	O
21	O
,	O
2023	O
.	O
</s>
<s>
The	O
submarine	O
's	O
heading	O
and	O
forward	O
velocity	O
are	O
displayed	O
with	O
a	O
minimalist	B-Device
interface	O
.	O
</s>
<s>
On	O
June	O
19	O
,	O
2022	O
,	O
Iron	B-Application
Lung	I-Application
had	O
an	O
update	O
that	O
added	O
more	O
lore	O
,	O
achievements	O
,	O
new	O
game	O
map	O
destinations	O
,	O
and	O
Steam	B-Application
Points	O
Shop	O
items	O
.	O
</s>
<s>
The	O
convict	O
is	O
sent	O
to	O
navigate	O
the	O
trenches	O
of	O
the	O
blood	O
ocean	O
in	O
a	O
small	O
submarine	O
known	O
as	O
SM-13	O
or	O
the	O
"	O
Iron	B-Application
Lung	I-Application
,	O
"	O
to	O
verify	O
the	O
existence	O
of	O
the	O
resources	O
.	O
</s>
<s>
The	O
convict	O
takes	O
control	O
of	O
the	O
Iron	B-Application
Lung	I-Application
,	O
a	O
small	O
but	O
sturdy	O
submarine	O
,	O
as	O
they	O
navigate	O
through	O
the	O
treacherous	O
,	O
narrow	O
caves	O
and	O
trenches	O
.	O
</s>
<s>
the	O
convict	O
must	O
also	O
contend	O
with	O
unforeseen	O
challenges	O
such	O
as	O
the	O
depletion	O
of	O
oxygen	O
supply	O
,	O
bursts	O
of	O
steam	B-Application
from	O
the	O
pipes	O
,	O
and	O
even	O
a	O
fire	O
that	O
breaks	O
out	O
in	O
the	O
rear	O
of	O
the	O
submarine	O
.	O
</s>
<s>
As	O
the	O
Iron	B-Application
Lung	I-Application
draws	O
closer	O
to	O
one	O
point	O
of	O
interest	O
,	O
a	O
strange	O
orb	O
of	O
light	O
,	O
the	O
vessel	O
begins	O
to	O
shake	O
violently	O
.	O
</s>
<s>
At	O
another	O
point	O
,	O
the	O
convict	O
captures	O
the	O
eye	O
of	O
a	O
colossal	O
,	O
unidentified	O
sea	O
creature	O
,	O
which	O
then	O
attacks	O
the	O
Iron	B-Application
Lung	I-Application
,	O
causing	O
a	O
significant	O
leak	O
.	O
</s>
<s>
A	O
post-game	O
text	O
entry	O
reveals	O
that	O
there	O
is	O
no	O
current	O
method	O
of	O
retrieving	O
the	O
remains	O
or	O
photographs	O
from	O
the	O
destroyed	O
Iron	B-Application
Lung	I-Application
,	O
making	O
the	O
mission	O
and	O
the	O
convict	O
's	O
death	O
for	O
naught	O
.	O
</s>
<s>
Iron	B-Application
Lung	I-Application
received	O
positive	O
reviews	O
,	O
with	O
praise	O
given	O
to	O
the	O
game	O
's	O
oppressive	O
atmosphere	O
and	O
soundscape	O
.	O
</s>
<s>
On	O
April	O
21	O
,	O
2023	O
,	O
American	O
YouTuber	O
Mark	O
Fischbach	O
,	O
known	O
online	O
as	O
Markiplier	O
,	O
announced	O
he	O
would	O
be	O
adapting	O
Iron	B-Application
Lung	I-Application
into	O
a	O
horror	O
film	O
.	O
</s>
<s>
Fischbach	O
,	O
who	O
had	O
previously	O
played	O
Iron	B-Application
Lung	I-Application
on	O
his	O
channel	O
,	O
announced	O
the	O
film	O
would	O
be	O
self-financed	O
,	O
star	O
himself	O
alongside	O
co-star	O
Caroline	O
Rose	O
Kaplan	O
,	O
and	O
use	O
his	O
own	O
script	O
.	O
</s>
<s>
David	B-Application
Szymanski	I-Application
has	O
also	O
confirmed	O
that	O
he	O
's	O
been	O
involved	O
with	O
the	O
film	O
since	O
pre-production	O
,	O
noting	O
that	O
he	O
's	O
been	O
assisting	O
with	O
the	O
screenplay	O
while	O
also	O
being	O
on	O
set	O
during	O
the	O
film	O
's	O
shooting	O
,	O
which	O
will	O
also	O
have	O
a	O
small	O
cameo	O
of	O
him	O
.	O
</s>
<s>
The	O
Iron	B-Application
Lung	I-Application
film	O
is	O
set	O
to	O
be	O
the	O
first	O
theatrical	O
film	O
directed	O
and	O
produced	O
by	O
Fischbach	O
,	O
who	O
will	O
co-produce	O
it	O
alongside	O
Will	O
Hyde	O
and	O
Jeff	O
Guerrero	O
.	O
</s>
