<s>
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
(	O
also	O
known	O
as	O
Adventure	B-Application
or	O
ADVENT	B-Application
)	O
is	O
a	O
text-based	O
adventure	B-Application
game	O
,	O
released	O
in	O
1976	O
by	O
developer	O
Will	O
Crowther	O
for	O
the	O
PDP-10	B-Device
mainframe	B-Architecture
computer	I-Architecture
.	O
</s>
<s>
The	O
game	O
is	O
composed	O
of	O
dozens	O
of	O
locations	O
,	O
and	O
the	O
player	O
moves	O
between	O
these	O
locations	O
and	O
interacts	O
with	O
objects	O
in	O
them	O
by	O
typing	O
one	O
-	O
or	O
two-word	O
commands	O
which	O
are	O
interpreted	O
by	O
the	O
game	O
's	O
natural	B-Language
language	I-Language
input	I-Language
system	O
.	O
</s>
<s>
It	O
is	O
the	O
first	O
well-known	O
example	O
of	O
interactive	O
fiction	O
,	O
as	O
well	O
as	O
the	O
first	O
well-known	O
adventure	B-Application
game	O
,	O
for	O
which	O
it	O
was	O
also	O
the	O
namesake	O
.	O
</s>
<s>
Woods	O
 '	O
version	O
expanded	O
the	O
game	O
in	O
size	O
and	O
increased	O
the	O
number	O
of	O
fantasy	B-Application
elements	O
present	O
in	O
it	O
,	O
such	O
as	O
a	O
dragon	O
and	O
magic	O
spells	O
.	O
</s>
<s>
Both	O
versions	O
,	O
typically	O
played	O
over	O
teleprinters	O
connected	O
to	O
mainframe	B-Architecture
computers	I-Architecture
,	O
were	O
spread	O
around	O
the	O
nascent	O
ARPANET	O
,	O
the	O
precursor	O
to	O
the	O
Internet	O
,	O
which	O
Crowther	O
was	O
involved	O
in	O
developing	O
.	O
</s>
<s>
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
was	O
one	O
of	O
the	O
first	O
teletype	O
games	O
and	O
was	O
massively	O
popular	O
in	O
the	O
computer	O
community	O
of	O
the	O
late	O
1970s	O
,	O
with	O
numerous	O
ports	O
and	O
modified	O
versions	O
being	O
created	O
based	O
on	O
Woods	O
 '	O
source	O
code	O
.	O
</s>
<s>
It	O
directly	O
inspired	O
the	O
creation	O
of	O
numerous	O
games	O
,	O
including	O
Zork	B-Application
(	O
1977	O
)	O
,	O
Adventureland	B-Application
(	O
1978	O
)	O
,	O
Mystery	B-Application
House	I-Application
(	O
1980	O
)	O
,	O
Rogue	B-Application
(	O
1980	O
)	O
,	O
and	O
Adventure	B-Application
(	O
1980	O
)	O
,	O
which	O
went	O
on	O
to	O
be	O
the	O
foundations	O
of	O
the	O
interactive	O
fiction	O
,	O
adventure	B-Application
,	O
roguelike	O
,	O
and	O
action-adventure	O
genres	O
.	O
</s>
<s>
It	O
also	O
influenced	O
the	O
creation	O
of	O
the	O
MUD	B-Application
and	O
computer	O
role-playing	O
game	O
genres	O
.	O
</s>
<s>
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
is	O
a	O
text-based	O
adventure	B-Application
game	O
wherein	O
the	O
player	O
explores	O
a	O
mysterious	O
cave	O
that	O
is	O
rumored	O
to	O
be	O
filled	O
with	O
treasure	O
and	O
gold	O
.	O
</s>
<s>
The	O
program	O
's	O
replies	O
are	O
typically	O
in	O
a	O
humorous	O
,	O
conversational	O
tone	O
,	O
much	O
as	O
a	O
Dungeon	B-Device
Master	I-Device
would	O
use	O
in	O
leading	O
players	O
in	O
a	O
tabletop	O
role-playing	O
game	O
.	O
</s>
<s>
Although	O
it	O
is	O
based	O
on	O
a	O
real	O
cave	O
system	O
,	O
it	O
contains	O
a	O
few	O
fantasy	B-Application
elements	O
such	O
as	O
a	O
crystal	O
bridge	O
,	O
magic	O
words	O
,	O
and	O
axe-wielding	O
dwarves	O
.	O
</s>
<s>
The	O
1977	O
version	O
of	O
the	O
game	O
,	O
upon	O
which	O
later	O
versions	O
were	O
based	O
,	O
adds	O
ten	O
more	O
treasures	O
and	O
more	O
fantasy	B-Application
elements	O
.	O
</s>
<s>
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
was	O
originally	O
created	O
by	O
William	O
Crowther	O
in	O
1975	O
and	O
1976	O
.	O
</s>
<s>
In	O
addition	O
to	O
caving	O
,	O
the	O
pair	O
produced	O
vector	O
map	O
surveys	O
of	O
the	O
cave	O
:	O
they	O
transcribed	O
the	O
survey	O
data	O
of	O
the	O
cave	O
from	O
"	O
muddy	O
little	O
books	O
"	O
into	O
a	O
teleprinter	O
terminal	O
in	O
their	O
house	O
,	O
which	O
could	O
send	O
and	O
print	O
messages	O
from	O
programs	O
running	O
on	O
the	O
central	O
computer	O
and	O
was	O
connected	O
to	O
a	O
PDP-1	B-Device
mainframe	B-Architecture
computer	I-Architecture
at	O
Bolt	O
,	O
Beranek	O
and	O
Newman	O
(	O
BBN	O
)	O
where	O
William	O
Crowther	O
worked	O
.	O
</s>
<s>
This	O
data	O
was	O
then	O
fed	O
into	O
a	O
program	O
developed	O
by	O
the	O
pair	O
that	O
generated	O
plotting	B-Application
commands	O
onto	O
punched	O
tape	O
,	O
which	O
were	O
then	O
fed	O
into	O
a	O
Honeywell	B-Device
316	I-Device
minicomputer	B-Architecture
attached	O
to	O
a	O
Calcomp	O
drum	O
plotter	O
at	O
BBN	O
to	O
print	O
paper	O
maps	O
.	O
</s>
<s>
Driven	O
by	O
what	O
he	O
later	O
described	O
as	O
an	O
increase	O
in	O
spare	O
time	O
combined	O
with	O
missing	O
his	O
two	O
daughters	O
,	O
he	O
began	O
working	O
on	O
a	O
text-based	O
game	O
in	O
Fortran	B-Application
on	O
BBN	O
's	O
PDP-10	B-Device
mainframe	B-Architecture
,	O
interfacing	O
through	O
a	O
teletype	O
printer	O
,	O
that	O
they	O
could	O
play	O
.	O
</s>
<s>
Crowther	O
wanted	O
the	O
game	O
to	O
be	O
accessible	O
and	O
not	O
intimidating	O
to	O
non-technical	O
players	O
such	O
as	O
his	O
children	O
,	O
and	O
so	O
developed	O
a	O
natural	B-Language
language	I-Language
input	I-Language
system	O
to	O
control	O
the	O
game	O
so	O
that	O
it	O
would	O
be	O
"	O
a	O
thing	O
that	O
gave	O
you	O
the	O
illusion	O
anyway	O
that	O
you	O
'd	O
typed	O
in	O
English	O
commands	O
and	O
it	O
did	O
what	O
you	O
said	O
"	O
.	O
</s>
<s>
This	O
approach	O
was	O
also	O
developed	O
to	O
allow	O
the	O
game	O
to	O
be	O
played	O
on	O
a	O
teletype	O
printer	O
,	O
rather	O
than	O
rely	O
on	O
user	O
interface	O
elements	O
used	O
in	O
programs	O
designed	O
for	O
monitors	B-Device
.	O
</s>
<s>
Once	O
the	O
game	O
was	O
complete	O
,	O
in	O
early	O
1976	O
,	O
Crowther	O
showed	O
it	O
off	O
to	O
his	O
co-workers	O
at	O
BBN	O
for	O
feedback	O
,	O
and	O
then	O
considered	O
his	O
work	O
on	O
the	O
game	O
finished	O
,	O
leaving	O
the	O
compiled	O
game	O
on	O
the	O
mainframe	B-Architecture
before	O
taking	O
a	O
month	O
off	O
for	O
vacation	O
.	O
</s>
<s>
Crowther	O
's	O
work	O
at	O
BBN	O
was	O
in	O
developing	O
ARPANET	O
,	O
one	O
of	O
the	O
first	O
networks	O
of	O
computers	O
and	O
a	O
precursor	O
to	O
the	O
Internet	O
,	O
and	O
the	O
PDP-10	B-Device
mainframe	B-Architecture
was	O
part	O
of	O
that	O
network	O
.	O
</s>
<s>
The	O
game	O
did	O
not	O
have	O
an	O
explicit	O
title	O
in	O
it	O
,	O
simply	O
stating	O
"	O
WELCOME	O
TO	O
ADVENTURE	B-Application
!!	O
"	O
</s>
<s>
as	O
a	O
part	O
of	O
the	O
opening	O
message	O
and	O
having	O
a	O
file	O
name	O
of	O
ADVENT	B-Application
;	O
it	O
was	O
referred	O
to	O
as	O
both	O
Adventure	B-Application
and	O
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
,	O
with	O
the	O
latter	O
becoming	O
the	O
more	O
common	O
name	O
over	O
time	O
.	O
</s>
<s>
Most	O
computer	B-General_Concept
terminals	I-General_Concept
at	O
the	O
time	O
did	O
not	O
have	O
monitors	B-Device
,	O
and	O
players	O
would	O
instead	O
play	O
the	O
game	O
over	O
teleprinters	O
connected	O
to	O
the	O
mainframe	B-Architecture
.	O
</s>
<s>
Woods	O
found	O
the	O
game	O
on	O
a	O
PDP-10	B-Device
at	O
the	O
Stanford	O
Medical	O
School	O
and	O
wanted	O
to	O
expand	O
upon	O
the	O
game	O
.	O
</s>
<s>
Woods	O
built	O
upon	O
Crowther	O
's	O
code	O
,	O
introducing	O
more	O
high	O
fantasy-related	O
elements	O
such	O
as	O
a	O
dragon	O
.	O
</s>
<s>
Woods	O
also	O
added	O
access	O
controls	O
to	O
the	O
game	O
,	O
allowing	O
mainframe	B-Architecture
administrators	O
to	O
restrict	O
the	O
game	O
from	O
running	O
during	O
business	O
hours	O
.	O
</s>
<s>
Woods	O
continued	O
releasing	O
updated	O
editions	O
in	O
Fortran	B-Application
until	O
1995	O
.	O
</s>
<s>
Crowther	O
later	O
said	O
that	O
Woods	O
 '	O
bringing	O
fantasy	B-Application
elements	O
earlier	O
into	O
the	O
gameplay	O
was	O
an	O
improvement	O
to	O
his	O
version	O
,	O
though	O
Crowther	O
's	O
daughters	O
also	O
recall	O
him	O
telling	O
them	O
when	O
they	O
were	O
frustrated	O
at	O
puzzles	O
in	O
the	O
game	O
that	O
it	O
was	O
one	O
of	O
Woods	O
 '	O
additions	O
,	O
not	O
his	O
.	O
</s>
<s>
Woods	O
 '	O
1977	O
version	O
became	O
the	O
more	O
recognizable	O
and	O
widespread	O
version	O
of	O
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
,	O
in	O
part	O
due	O
to	O
its	O
wider	O
code	O
availability	O
,	O
as	O
it	O
led	O
to	O
several	O
other	O
variants	O
of	O
the	O
game	O
being	O
produced	O
.	O
</s>
<s>
Both	O
Crowther	O
's	O
and	O
Woods	O
 '	O
version	O
were	O
designed	O
to	O
run	O
on	O
the	O
PDP-10	B-Device
and	O
used	O
features	O
unique	O
to	O
that	O
architecture	B-General_Concept
,	O
meaning	O
that	O
the	O
program	O
could	O
not	O
be	O
easily	O
moved	O
to	O
other	O
systems	O
,	O
even	O
those	O
that	O
could	O
run	O
Fortran	B-Application
programs	O
.	O
</s>
<s>
Gillogly	O
,	O
with	O
agreement	O
from	O
Crowther	O
and	O
Woods	O
,	O
spent	O
several	O
weeks	O
porting	O
the	O
code	O
to	O
the	O
C	B-Language
programming	I-Language
language	I-Language
to	O
run	O
on	O
the	O
more	O
generic	O
Unix	B-Application
architecture	B-General_Concept
.	O
</s>
<s>
It	O
can	O
still	O
be	O
found	O
as	O
part	O
of	O
the	O
BSD	B-Operating_System
Operating	I-Operating_System
Systems	I-Operating_System
distributions	O
,	O
or	O
as	O
part	O
of	O
the	O
"	O
bsdgames	B-Operating_System
"	O
package	O
under	O
most	O
Linux	B-Application
distributions	O
,	O
under	O
the	O
command	O
name	O
"	O
adventure	B-Application
"	O
.	O
</s>
<s>
Bob	O
Supnik	O
of	O
Digital	O
Equipment	O
Corporation	O
also	O
ported	O
the	O
game	O
in	O
Fortran	B-Application
to	O
the	O
PDP-11	B-Device
minicomputer	B-Architecture
in	O
mid-1977	O
,	O
spreading	O
it	O
to	O
other	O
minicomputer	B-Architecture
systems	O
.	O
</s>
<s>
There	O
were	O
enough	O
ports	O
and	O
variants	O
and	O
alternate	O
takes	O
of	O
the	O
game	O
by	O
1982	O
that	O
an	O
article	O
in	O
Your	O
Computer	O
described	O
the	O
entire	O
set	O
of	O
games	O
wherein	O
the	O
player	O
enters	O
short	O
commands	O
to	O
move	O
between	O
set	O
locations	O
as	O
"	O
Adventure	B-Application
games	O
"	O
,	O
and	O
provided	O
code	O
for	O
the	O
ZX81	O
computer	O
for	O
an	O
"	O
Adventure-writing	O
kit	O
"	O
program	O
that	O
could	O
be	O
used	O
to	O
generate	O
a	O
game	O
with	O
that	O
gameplay	O
.	O
</s>
<s>
In	O
2017	O
,	O
Eric	O
S	O
.	O
Raymond	O
created	O
a	O
port	O
for	O
modern	O
computers	O
of	O
Woods	O
 '	O
1995	O
version	O
of	O
the	O
game	O
as	O
Open	O
Adventure	B-Application
and	O
released	O
the	O
source	O
code	O
under	O
an	O
open-source	O
license	O
with	O
permission	O
from	O
Crowther	O
and	O
Woods	O
.	O
</s>
<s>
Microsoft	O
published	O
a	O
version	O
titled	O
Microsoft	B-Application
Adventure	I-Application
in	O
1979	O
for	O
the	O
Apple	O
II	O
Plus	O
and	O
TRS-80	B-Device
computers	O
,	O
and	O
again	O
in	O
1981	O
for	O
MS-DOS	B-Application
as	O
a	O
launch	O
title	O
for	O
IBM	B-Device
PCs	I-Device
,	O
one	O
of	O
the	O
few	O
software	O
programs	O
and	O
the	O
only	O
game	O
at	O
launch	O
.	O
</s>
<s>
The	O
Software	O
Toolworks	O
released	O
The	O
Original	O
Adventure	B-Application
for	O
IBM	B-Device
PCs	I-Device
in	O
1981	O
;	O
endorsed	O
by	O
Crowther	O
and	O
Woods	O
in	O
exchange	O
for	O
a	O
nominal	O
payment	O
,	O
it	O
was	O
the	O
only	O
version	O
for	O
which	O
they	O
received	O
any	O
money	O
.	O
</s>
<s>
Level	O
9	O
Computing	O
released	O
multiple	O
versions	O
of	O
the	O
game	O
for	O
different	O
computer	O
platforms	O
under	O
the	O
name	O
Colossal	B-Application
Adventure	I-Application
,	O
beginning	O
with	O
a	O
version	O
in	O
1982	O
for	O
the	O
Nascom	B-Operating_System
that	O
includes	O
an	O
entire	O
extra	O
section	O
where	O
the	O
player	O
saves	O
elves	O
from	O
flooding	O
caves	O
,	O
as	O
well	O
as	O
later	O
versions	O
that	O
include	O
pictures	O
of	O
the	O
areas	O
.	O
</s>
<s>
A	O
3D	O
remake	O
of	O
the	O
game	O
,	O
under	O
the	O
title	O
Colossal	O
Cave	O
,	O
was	O
released	O
by	O
Cygnus	O
Entertainment	O
as	O
its	O
first	O
title	O
in	O
on	O
January	O
19	O
,	O
2023	O
,	O
for	O
Windows	B-Application
,	O
macOS	B-Application
,	O
Linux	B-Application
,	O
Nintendo	B-Application
Switch	I-Application
,	O
PlayStation	B-Device
5	I-Device
,	O
Xbox	B-Device
Series	I-Device
X	I-Device
,	O
and	O
Meta	B-General_Concept
Quest	I-General_Concept
2	I-General_Concept
.	O
</s>
<s>
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
is	O
considered	O
one	O
of	O
the	O
most	O
influential	O
video	O
games	O
.	O
</s>
<s>
The	O
game	O
is	O
the	O
namesake	O
and	O
the	O
first	O
well-known	O
example	O
of	O
an	O
adventure	B-Application
game	O
,	O
as	O
it	O
combined	O
the	O
interactivity	O
of	O
computer	O
programs	O
with	O
the	O
storytelling	O
of	O
literature	O
or	O
role-playing	O
games	O
such	O
as	O
Dungeons	O
&	O
Dragons	O
,	O
despite	O
its	O
lack	O
of	O
linear	O
plot	O
.	O
</s>
<s>
The	O
only	O
text	O
adventure	B-Application
game	O
known	O
to	O
precede	O
it	O
is	O
Wander	B-Application
from	O
1974	O
,	O
which	O
did	O
not	O
have	O
the	O
spread	O
or	O
influence	O
of	O
Adventure	B-Application
.	O
</s>
<s>
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
was	O
immensely	O
popular	O
among	O
the	O
small	O
computer-using	O
population	O
of	O
the	O
time	O
.	O
</s>
<s>
Historian	O
Alexander	O
Smith	O
described	O
it	O
as	O
"	O
ubiquitous	O
"	O
on	O
computer	O
networks	O
by	O
the	O
end	O
of	O
1977	O
,	O
alongside	O
Star	B-Application
Trek	I-Application
and	O
Lunar	B-Application
Lander	I-Application
.	O
</s>
<s>
Computer	O
game	O
programmers	O
of	O
the	O
time	O
were	O
greatly	O
inspired	O
by	O
the	O
game	O
;	O
according	O
to	O
game	O
designer	O
and	O
creator	O
of	O
the	O
Inform	O
interactive	O
fiction	O
language	O
Graham	O
Nelson	O
,	O
"	O
for	O
the	O
five	O
years	O
to	O
1982	O
almost	O
every	O
game	O
created	O
was	O
another	O
'	O
Advent	B-Application
 '	O
"	O
.	O
</s>
<s>
Several	O
of	O
these	O
games	O
were	O
the	O
initial	O
releases	O
of	O
companies	O
that	O
would	O
go	O
on	O
to	O
become	O
key	O
innovators	O
for	O
the	O
early	O
adventure	B-Application
game	O
genre	O
.	O
</s>
<s>
These	O
included	O
Zork	B-Application
(	O
1977	O
)	O
—	O
which	O
began	O
development	O
within	O
a	O
month	O
of	O
the	O
release	O
of	O
Woods	O
 '	O
version	O
—	O
first	O
by	O
the	O
team	O
of	O
Dave	O
Lebling	O
,	O
Marc	O
Blank	O
,	O
Tim	O
Anderson	O
,	O
and	O
Bruce	O
Daniels	O
at	O
MIT	O
and	O
later	O
by	O
Infocom	O
;	O
Adventureland	B-Application
(	O
1978	O
)	O
by	O
Scott	O
Adams	O
of	O
Adventure	B-Application
International	O
;	O
and	O
Mystery	B-Application
House	I-Application
(	O
1980	O
)	O
by	O
Roberta	O
and	O
Ken	O
Williams	O
of	O
On-Line	O
Systems	O
.	O
</s>
<s>
The	O
1980	O
Atari	B-General_Concept
2600	I-General_Concept
video	O
game	O
Adventure	B-Application
was	O
an	O
attempt	O
to	O
create	O
a	O
graphical	O
version	O
of	O
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
,	O
and	O
itself	O
became	O
the	O
first	O
known	O
example	O
of	O
an	O
action-adventure	O
game	O
and	O
introduced	O
the	O
fantasy	B-Application
genre	O
to	O
video	O
game	O
consoles	O
.	O
</s>
<s>
Carmen	O
Sandiego	O
,	O
an	O
early	O
educational	O
game	O
series	O
begun	O
in	O
1985	O
,	O
was	O
inspired	O
by	O
transforming	O
the	O
idea	O
of	O
moving	O
around	O
the	O
caverns	O
of	O
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
looking	O
for	O
treasure	O
into	O
moving	O
around	O
the	O
globe	O
searching	O
for	O
clues	O
.	O
</s>
<s>
In	O
addition	O
to	O
inspiring	O
adventure	B-Application
games	O
,	O
as	O
described	O
by	O
Matt	O
Barton	O
in	O
Dungeons	O
and	O
Desktops	O
:	O
The	O
History	O
of	O
Computer	O
Role-Playing	O
Games	O
,	O
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
demonstrated	O
the	O
"	O
creation	O
of	O
a	O
virtual	O
world	O
and	O
the	O
means	O
to	O
explore	O
it	O
"	O
,	O
and	O
the	O
inclusion	O
of	O
monsters	O
and	O
simplified	O
combat	O
.	O
</s>
<s>
Glenn	O
Wichman	O
and	O
Michael	B-Application
Toy	I-Application
name	O
the	O
game	O
as	O
an	O
influence	O
for	O
their	O
game	O
Rogue	B-Application
in	O
1980	O
,	O
which	O
went	O
on	O
to	O
become	O
the	O
namesake	O
of	O
the	O
roguelike	O
genre	O
.	O
</s>
<s>
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
also	O
inspired	O
the	O
development	O
of	O
online	O
multiplayer	O
games	O
like	O
MUDs	B-Application
,	O
the	O
precursors	O
of	O
the	O
modern-day	O
massively	B-Protocol
multiplayer	I-Protocol
online	I-Protocol
role-playing	I-Protocol
game	I-Protocol
.	O
</s>
<s>
"	O
Xyzzy	O
"	O
is	O
a	O
magic	O
word	O
that	O
teleports	B-General_Concept
the	O
player	O
between	O
two	O
locations	O
(	O
"	O
inside	O
building	O
"	O
and	O
the	O
"	O
debris	O
room	O
"	O
)	O
.	O
</s>
<s>
As	O
an	O
in-joke	O
tribute	O
to	O
Adventure	B-Application
,	O
many	O
later	O
games	O
and	O
computer	O
programs	O
include	O
a	O
hidden	O
"	O
xyzzy	O
"	O
command	O
,	O
the	O
results	O
of	O
which	O
range	O
from	O
the	O
humorous	O
to	O
the	O
straightforward	O
.	O
</s>
<s>
The	O
phrase	O
"	O
you	O
are	O
in	O
a	O
maze	B-Application
of	I-Application
twisty	I-Application
little	I-Application
passages	I-Application
,	I-Application
all	I-Application
alike	I-Application
"	O
has	O
become	O
memorialized	O
and	O
popularized	O
in	O
the	O
hacker	O
culture	O
,	O
where	O
"	O
passages	O
"	O
may	O
be	O
replaced	O
with	O
a	O
different	O
word	O
,	O
as	O
the	O
situation	O
warrants	O
.	O
</s>
<s>
Colossal	B-Application
Cave	I-Application
Adventure	I-Application
has	O
continued	O
to	O
be	O
referenced	O
by	O
media	O
for	O
decades	O
since	O
.	O
</s>
<s>
The	O
2003	O
book	O
on	O
the	O
history	O
of	O
interactive	O
fiction	O
Twisty	B-Application
Little	I-Application
Passages	I-Application
was	O
named	O
after	O
the	O
"	O
all	O
alike	O
"	O
maze	O
,	O
and	O
the	O
2010	O
documentary	O
on	O
the	O
history	O
of	O
text	O
adventure	B-Application
games	O
Get	O
Lamp	O
is	O
named	O
for	O
the	O
command	O
to	O
get	O
one	O
of	O
the	O
first	O
objects	O
the	O
player	O
encounters	O
and	O
must	O
carry	O
to	O
solve	O
the	O
game	O
.	O
</s>
<s>
The	O
2013	O
game	O
Kentucky	B-Application
Route	I-Application
Zeros	I-Application
third	O
act	O
draws	O
direct	O
inspiration	O
from	O
the	O
game	O
,	O
showing	O
a	O
computer	O
simulation	O
set	O
up	O
inside	O
of	O
a	O
cave	O
,	O
which	O
is	O
itself	O
depicting	O
a	O
massive	O
cave	O
system	O
.	O
</s>
