<s>
Nightmare	B-Application
Creatures	I-Application
is	O
a	O
1997	O
survival	O
horror	O
video	O
game	O
developed	O
by	O
Kalisto	O
Entertainment	O
for	O
PlayStation	B-Device
,	O
Microsoft	B-Application
Windows	I-Application
and	O
Nintendo	B-Operating_System
64	I-Operating_System
.	O
</s>
<s>
A	O
sequel	O
,	O
Nightmare	B-Application
Creatures	I-Application
II	I-Application
,	O
was	O
released	O
three	O
years	O
later	O
.	O
</s>
<s>
A	O
mobile	B-Application
phone	O
version	O
of	O
Nightmare	B-Application
Creatures	I-Application
was	O
developed	O
and	O
published	O
by	O
Gameloft	O
in	O
2003	O
.	O
</s>
<s>
A	O
second	O
sequel	O
,	O
Nightmare	B-Application
Creatures	I-Application
III	O
:	O
Angel	O
of	O
Darkness	O
,	O
was	O
cancelled	O
in	O
2004	O
.	O
</s>
<s>
The	O
story	O
behind	O
Nightmare	B-Application
Creatures	I-Application
draws	O
upon	O
gothic	O
horror	O
elements	O
of	O
the	O
19th	O
century	O
and	O
begins	O
in	O
1666	O
,	O
when	O
a	O
devil-worshiping	O
cult	O
called	O
the	O
Brotherhood	O
of	O
Hecate	O
were	O
conducting	O
sinister	O
experiments	O
in	O
London	O
so	O
as	O
to	O
take	O
over	O
the	O
city	O
,	O
and	O
then	O
the	O
world	O
.	O
</s>
<s>
However	O
,	O
rather	O
than	O
creating	O
their	O
intended	O
superhumans	O
,	O
their	O
experiments	O
instead	O
created	O
grotesque	O
monsters	O
called	O
nightmare	B-Application
creatures	I-Application
.	O
</s>
<s>
A	O
single-player	O
only	O
game	O
,	O
Nightmare	B-Application
Creatures	I-Application
allows	O
the	O
player	O
to	O
control	O
either	O
Ignatius	O
or	O
Nadia	O
.	O
</s>
<s>
Nightmare	B-Application
Creatures	I-Application
was	O
the	O
first	O
video	O
game	O
to	O
be	O
created	O
with	O
LibSys	O
,	O
Kalisto	O
's	O
own	O
proprietary	O
3D	O
development	O
program	O
.	O
</s>
<s>
Initially	O
Mindscape	O
was	O
slated	O
to	O
be	O
the	O
publisher	O
,	O
but	O
the	O
publication	O
rights	O
to	O
Nightmare	B-Application
Creatures	I-Application
were	O
acquired	O
by	O
Activision	O
just	O
before	O
the	O
1997	O
Electronic	O
Entertainment	O
Expo	O
.	O
</s>
<s>
Nightmare	B-Application
Creatures	I-Application
was	O
published	O
by	O
Activision	O
in	O
North	O
America	O
and	O
Sony	O
Computer	O
Entertainment	O
in	O
Europe	O
.	O
</s>
<s>
In	O
North	O
America	O
the	O
PlayStation	B-Device
version	O
was	O
promoted	O
with	O
a	O
television	O
commercial	O
featuring	O
a	O
voice-over	O
by	O
Maurice	O
LaMarche	O
.	O
</s>
<s>
While	O
the	O
PlayStation	B-Device
and	O
Microsoft	B-Application
Windows	I-Application
versions	O
are	O
essentially	O
the	O
same	O
,	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
version	O
saw	O
a	O
handful	O
of	O
minor	O
changes	O
.	O
</s>
<s>
Given	O
the	O
limited	O
storage	O
capacity	O
of	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
's	O
cartridge	O
system	O
,	O
all	O
full-motion	O
videos	O
were	O
removed	O
.	O
</s>
<s>
The	O
platforming	O
elements	O
were	O
made	O
much	O
easier	O
in	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
version	O
,	O
and	O
the	O
health-depleting	O
adrenaline	O
meter	O
could	O
also	O
be	O
turned	O
off	O
in	O
the	O
options	O
menu	O
,	O
allowing	O
players	O
to	O
explore	O
the	O
environments	O
at	O
a	O
more	O
leisurely	O
pace	O
.	O
</s>
<s>
Also	O
graphically	O
,	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
version	O
is	O
more	O
crisp	O
,	O
clear	O
and	O
detailed	O
than	O
the	O
PlayStation	B-Device
version	O
,	O
without	O
the	O
pixelization	O
and	O
texture-warping	O
.	O
</s>
<s>
The	O
PlayStation	B-Device
version	O
was	O
released	O
in	O
Japan	O
on	O
February	O
26	O
,	O
1998	O
.	O
</s>
<s>
Nightmare	B-Application
Creatures	I-Application
was	O
a	O
commercial	O
hit	O
,	O
with	O
global	O
sales	O
above	O
1.5	O
million	O
units	O
by	O
January	O
2000	O
.	O
</s>
<s>
The	O
PlayStation	B-Device
version	O
of	O
Nightmare	B-Application
Creatures	I-Application
received	O
"	O
favorable	O
"	O
reviews	O
,	O
while	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
and	O
PC	O
versions	O
received	O
"	O
mixed	O
"	O
reviews	O
,	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
GameRankings	O
.	O
</s>
<s>
The	O
PlayStation	B-Device
release	O
divided	O
critics	O
.	O
</s>
<s>
Taking	O
the	O
other	O
side	O
,	O
IGN	O
concluded	O
,	O
"	O
Ultimately	O
,	O
the	O
positives	O
far	O
outweigh	O
the	O
negatives	O
in	O
Nightmare	B-Application
Creatures	I-Application
.	O
</s>
<s>
They	O
summarized	O
that	O
"	O
With	O
its	O
speedy	O
gameplay	O
and	O
fast-moving	O
enemy	O
interaction	O
,	O
not	O
to	O
mention	O
the	O
intense	O
,	O
creepy	O
nature	O
of	O
the	O
backgrounds	O
,	O
Nightmare	B-Application
Creatures	I-Application
is	O
sure	O
to	O
haunt	O
your	O
dreams	O
for	O
months	O
to	O
come.	O
"	O
</s>
<s>
Next	O
Generation	O
reviewed	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
version	O
of	O
the	O
game	O
,	O
rating	O
it	O
three	O
stars	O
out	O
of	O
five	O
,	O
and	O
stated	O
that	O
"	O
Nightmare	B-Application
Creatures	I-Application
does	O
grow	O
bland	O
after	O
the	O
first	O
few	O
levels	O
,	O
but	O
the	O
variety	O
of	O
items	O
and	O
new	O
combos	O
keep	O
the	O
game	O
from	O
diving	O
into	O
tedium	O
.	O
</s>
<s>
All	O
in	O
all	O
,	O
it	O
's	O
a	O
welcome	O
addition	O
to	O
the	O
N64.	O
"	O
</s>
<s>
Entertainment	O
Weekly	O
gave	O
the	O
game	O
a	O
B−	O
,	O
praising	O
the	O
3D	O
environments	O
,	O
and	O
saying	O
Castlevania	B-Application
:	I-Application
Symphony	I-Application
of	I-Application
the	I-Application
Night	I-Application
is	O
dated	O
and	O
flat	O
in	O
comparison	O
.	O
</s>
