<s>
Catacomb	B-Application
3-D	I-Application
(	O
also	O
known	O
as	O
Catacomb	B-Application
3-D	I-Application
:	O
A	O
New	O
Dimension	O
,	O
Catacomb	B-Application
3-D	I-Application
:	O
The	O
Descent	O
,	O
and	O
Catacombs	B-Application
3	I-Application
)	O
is	O
a	O
first-person	O
shooter	O
video	O
game	O
,	O
the	O
third	O
in	O
the	O
Catacomb	B-Application
series	O
,	O
the	O
first	O
of	O
which	O
to	O
feature	O
3D	O
computer	O
graphics	O
.	O
</s>
<s>
The	O
player	O
takes	O
control	O
of	O
the	O
high	O
wizard	O
Petton	O
Everhail	O
,	O
descending	O
into	O
the	O
catacombs	B-Application
of	O
the	O
Towne	O
Cemetery	O
to	O
defeat	O
the	O
evil	O
lich	O
Nemesis	O
and	O
rescue	O
his	O
friend	O
Grelminar	O
.	O
</s>
<s>
Catacomb	B-Application
3-D	I-Application
is	O
a	O
landmark	O
title	O
in	O
terms	O
of	O
first-person	O
graphics	O
.	O
</s>
<s>
It	O
was	O
released	O
for	O
MS-DOS	B-Application
with	O
EGA	B-Device
graphics	I-Device
.	O
</s>
<s>
The	O
game	O
introduced	O
the	O
concept	O
of	O
showing	O
the	O
player	O
's	O
hand	O
in	O
the	O
three-dimensional	O
viewpoint	O
,	O
and	O
an	O
enhanced	O
version	O
of	O
its	O
technology	O
was	O
later	O
used	O
for	O
the	O
more	O
successful	O
Wolfenstein	B-Application
3D	I-Application
.	O
</s>
<s>
The	O
game	O
's	O
more	O
primitive	O
technological	O
predecessor	O
was	O
Hovertank	B-Application
3D	I-Application
.	O
</s>
<s>
The	O
origin	O
of	O
the	O
games	O
is	O
Catacomb	B-Application
by	O
John	O
Carmack	O
for	O
the	O
PC	O
and	O
Apple	B-Device
II	I-Device
.	O
</s>
<s>
It	O
was	O
followed	O
up	O
with	O
Catacomb	B-Application
II	I-Application
,	O
which	O
used	O
the	O
same	O
game	O
engine	O
with	O
new	O
levels	O
.	O
</s>
<s>
The	O
first	O
release	O
of	O
Catacomb	B-Application
3-D	I-Application
was	O
called	O
Catacomb	B-Application
3-D	I-Application
:	O
A	O
New	O
Dimension	O
,	O
but	O
it	O
was	O
later	O
re-released	O
as	O
Catacomb	B-Application
3-D	I-Application
:	O
The	O
Descent	O
,	O
as	O
well	O
as	O
Catacombs	B-Application
3	I-Application
for	O
a	O
re-release	O
as	O
commercially	O
packaged	O
software	O
(	O
the	O
earlier	O
versions	O
had	O
been	O
released	O
by	O
other	O
means	O
such	O
as	O
disk	O
magazines	O
and	O
downloads	O
)	O
.	O
</s>
<s>
The	O
game	O
was	O
programmed	O
using	O
the	O
Borland	O
C++	B-Application
programming	O
language	O
.	O
</s>
<s>
id	O
Software	O
's	O
use	O
of	O
texture	O
mapping	O
in	O
Catacomb	B-Application
3-D	I-Application
was	O
influenced	O
by	O
Ultima	B-Application
Underworld	I-Application
(	O
still	O
in	O
development	O
at	O
Catacomb	B-Application
3-Ds	I-Application
release	O
)	O
.	O
</s>
<s>
Catacomb	B-Application
3-D	I-Application
was	O
followed	O
by	O
three	O
games	O
,	O
in	O
the	O
so-called	O
Catacomb	B-Application
Adventure	O
Series	O
.	O
</s>
<s>
They	O
were	O
not	O
developed	O
by	O
id	O
Software	O
but	O
internally	O
by	O
Softdisk	O
with	O
a	O
new	O
staff	O
for	O
Gamer	O
's	O
Edge	O
,	O
who	O
also	O
made	O
the	O
later	O
Dangerous	B-Application
Dave	I-Application
sequels	O
.	O
</s>
<s>
All	O
of	O
the	O
games	O
,	O
including	O
the	O
original	O
Catacomb	B-Application
titles	O
,	O
are	O
now	O
distributed	O
legally	O
by	O
Flat	O
Rock	O
Software	O
through	O
their	O
own	O
web	O
store	O
and	O
via	O
GoG.com	O
.	O
</s>
<s>
Flat	O
Rock	O
have	O
also	O
released	O
the	O
source	O
code	O
for	O
the	O
games	O
under	O
GNU	B-License
GPL-2.0-or-later	I-License
in	O
June	O
2014	O
in	O
a	O
manner	O
similar	O
those	O
done	O
by	O
id	O
and	O
partners	O
.	O
</s>
<s>
This	O
has	O
led	O
to	O
the	O
creation	O
of	O
the	O
source	O
port	O
Reflection	O
Catacomb	B-Application
,	O
also	O
called	O
Reflection	O
Keen	O
due	O
to	O
shared	O
support	O
for	O
Keen	B-Application
Dreams	I-Application
,	O
and	O
ports	O
all	O
of	O
the	O
3D	O
Catacomb	B-Application
games	O
to	O
modern	O
systems	O
.	O
</s>
<s>
Another	O
project	O
,	O
CatacombGL	O
,	O
is	O
an	O
enhanced	O
OpenGL	B-Application
port	O
for	O
Microsoft	B-Application
Windows	I-Application
and	O
Linux	B-Application
.	O
</s>
<s>
The	O
series	O
 '	O
development	O
head	O
,	O
Greg	O
Malone	O
,	O
later	O
became	O
creative	O
director	O
for	O
Duke	B-Application
Nukem	I-Application
3D	I-Application
and	O
also	O
worked	O
on	O
Shadow	B-Application
Warrior	I-Application
for	O
3D	O
Realms	O
.	O
</s>
<s>
Department	O
heads	O
Mike	O
Maynard	O
and	O
Jim	O
Row	O
,	O
meanwhile	O
,	O
would	O
co-found	O
JAM	O
Productions	O
(	O
soon	O
joined	O
by	O
Jerry	O
Jones	O
)	O
,	O
the	O
creators	O
of	O
Blake	B-Application
Stone	I-Application
using	O
an	O
enhanced	O
Wolfenstein	B-Application
3D	I-Application
engine	O
.	O
</s>
<s>
The	O
series	O
also	O
introduced	O
an	O
item	O
called	O
crystal	O
hourglasses	O
,	O
which	O
would	O
temporarily	O
freeze	O
time	O
and	O
allow	O
the	O
player	O
to	O
stage	O
shots	O
to	O
destroy	O
enemies	O
upon	O
the	O
resumption	O
of	O
normal	O
time	O
,	O
pre-dating	O
later	O
bullet	O
time	O
features	O
in	O
games	O
such	O
as	O
Requiem	B-Application
:	I-Application
Avenging	I-Application
Angel	I-Application
and	O
Max	B-Application
Payne	I-Application
.	O
</s>
<s>
Catacomb	B-Application
Abyss	O
is	O
the	O
sequel	O
to	O
Catacomb	B-Application
3-D	I-Application
,	O
and	O
featured	O
the	O
same	O
main	O
character	O
in	O
a	O
new	O
adventure	O
:	O
since	O
his	O
defeat	O
,	O
some	O
of	O
Nemesis	O
 '	O
minions	O
have	O
built	O
a	O
mausoleum	O
in	O
his	O
honour	O
.	O
</s>
<s>
The	O
environments	O
are	O
more	O
varied	O
than	O
in	O
Catacomb	B-Application
3D	I-Application
,	O
featuring	O
crypts	O
,	O
gardens	O
,	O
mines	O
,	O
aqueducts	O
,	O
volcanic	O
regions	O
and	O
various	O
other	O
locales	O
.	O
</s>
<s>
It	O
was	O
the	O
only	O
game	O
in	O
the	O
series	O
that	O
was	O
distributed	O
as	O
shareware	B-License
,	O
released	O
by	O
Softdisk	O
in	O
1992	O
.	O
</s>
<s>
Catacomb	B-Application
Armageddon	O
is	O
the	O
sequel	O
to	O
Catacomb	B-Application
Abyss	O
,	O
only	O
now	O
set	O
in	O
the	O
present	O
day	O
.	O
</s>
<s>
It	O
was	O
developed	O
by	O
Softdisk	O
and	O
was	O
later	O
republished	O
by	O
Froggman	O
under	O
the	O
title	O
Curse	B-Application
of	I-Application
the	I-Application
Catacombs	I-Application
.	O
</s>
<s>
Catacomb	B-Application
Apocalypse	O
is	O
the	O
final	O
game	O
in	O
the	O
Catacomb	B-Application
Adventure	O
Series	O
.	O
</s>
<s>
It	O
was	O
set	O
in	O
the	O
distant	O
future	O
,	O
accessible	O
via	O
time	O
portals	O
,	O
and	O
mixed	O
fantasy	B-Application
and	O
science	O
fiction	O
elements	O
,	O
pitting	O
players	O
against	O
robotic	O
necromancers	O
and	O
the	O
like	O
.	O
</s>
<s>
It	O
is	O
also	O
the	O
only	O
game	O
in	O
the	O
trilogy	O
to	O
have	O
a	O
hub	O
system	O
,	O
though	O
it	O
was	O
present	O
in	O
the	O
original	O
Catacomb	B-Application
3D	I-Application
.	O
</s>
<s>
It	O
was	O
developed	O
by	O
Softdisk	O
and	O
later	O
republished	O
by	O
Froggman	O
under	O
the	O
title	O
Terror	O
of	O
the	O
Catacombs	B-Application
.	O
</s>
<s>
According	O
to	O
John	O
Romero	O
,	O
the	O
team	O
felt	O
it	O
lacked	O
the	O
coolness	O
and	O
fun	O
of	O
Commander	B-Application
Keen	I-Application
,	O
although	O
the	O
3D	O
technology	O
was	O
interesting	O
to	O
work	O
with	O
.	O
</s>
<s>
Computer	O
Gaming	O
World	O
in	O
May	O
1993	O
called	O
The	B-Application
Catacomb	I-Application
Abyss	I-Application
"	O
very	O
enjoyable	O
"	O
despite	O
the	O
"	O
minimal	O
"	O
EGA	B-Device
graphics	I-Device
and	O
sound	O
.	O
</s>
<s>
The	O
magazine	O
stated	O
in	O
February	O
1994	O
that	O
Terror	O
of	O
the	O
Catacombss	O
"	O
Playability	O
is	O
good	O
,	O
almost	O
addictive	O
,	O
and	O
offers	O
bang	O
for	O
the	O
buck	O
in	O
spite	O
of	O
its	O
lackluster	O
"	O
EGA	B-Device
graphics	I-Device
.	O
</s>
