<s>
Heart	B-Application
of	I-Application
Darkness	I-Application
is	O
a	O
cinematic	O
platform	O
video	O
game	O
developed	O
by	O
French	O
developer	O
Amazing	B-Application
Studio	I-Application
for	O
the	O
PlayStation	B-Device
and	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
A	O
Game	B-Device
Boy	I-Device
Advance	I-Device
port	O
was	O
announced	O
in	O
2001	O
but	O
it	O
was	O
never	O
released	O
.	O
</s>
<s>
The	O
game	O
was	O
supervised	O
by	O
game	O
developer	O
Éric	O
Chahi	O
,	O
known	O
for	O
Another	B-Application
World	I-Application
,	O
this	O
time	O
with	O
a	O
team	O
of	O
artists	O
and	O
developers	O
.	O
</s>
<s>
The	O
game	O
is	O
completely	O
unrelated	O
to	O
the	O
Joseph	O
Conrad	O
novel	B-Application
of	I-Application
the	I-Application
same	I-Application
name	I-Application
.	O
</s>
<s>
Heart	B-Application
of	I-Application
Darkness	I-Application
is	O
a	O
cinematic	O
platformer	O
in	O
the	O
vein	O
of	O
Éric	O
Chahi	O
's	O
previous	O
game	O
Another	B-Application
World	I-Application
.	O
</s>
<s>
Being	O
instructed	O
that	O
same	O
day	O
by	O
his	O
teacher	O
to	O
watch	O
the	O
solar	B-Application
eclipse	I-Application
,	O
Andy	O
takes	O
his	O
beloved	O
dog	O
Whisky	O
to	O
the	O
park	O
where	O
dark	O
forces	O
steal	O
Whisky	O
away	O
,	O
prompting	O
Andy	O
to	O
use	O
his	O
assortment	O
of	O
inventions	O
and	O
machines	O
to	O
get	O
him	O
back	O
.	O
</s>
<s>
Andy	O
travels	O
to	O
another	B-Application
world	I-Application
called	O
the	O
Darkland	O
in	O
a	O
homemade	O
spaceship	O
which	O
promptly	O
crashes	O
and	O
he	O
has	O
to	O
face	O
an	O
assortment	O
of	O
obstacles	O
to	O
rescue	O
Whisky	O
and	O
find	O
his	O
way	O
home	O
.	O
</s>
<s>
Planning	O
to	O
use	O
the	O
magic	O
rock	O
's	O
power	O
to	O
destroy	O
the	O
black	B-Application
hole	I-Application
at	O
the	O
lair	O
's	O
center	O
.	O
</s>
<s>
However	O
,	O
Andy	O
is	O
double-crossed	O
by	O
the	O
Servant	O
who	O
kicks	O
Whisky	O
into	O
the	O
black	B-Application
hole	I-Application
and	O
sends	O
Andy	O
into	O
an	O
ambush	O
.	O
</s>
<s>
Andy	O
ends	O
up	O
fending	O
off	O
droves	O
of	O
shadow	O
creatures	O
and	O
successfully	O
following	O
through	O
with	O
his	O
plan	O
,	O
but	O
falls	O
into	O
the	O
black	B-Application
hole	I-Application
himself	O
along	O
with	O
the	O
Master	O
of	O
Darkness	O
as	O
the	O
structure	O
around	O
him	O
collapses	O
.	O
</s>
<s>
The	O
black	B-Application
hole	I-Application
's	O
center	O
is	O
the	O
heart	B-Application
of	I-Application
darkness	I-Application
and	O
there	O
Andy	O
must	O
fight	O
the	O
Master	O
and	O
face	O
his	O
fears	O
once	O
and	O
for	O
all	O
.	O
</s>
<s>
Heart	B-Application
of	I-Application
Darkness	I-Application
suffered	O
a	O
protracted	O
development	O
cycle	O
marked	O
by	O
numerous	O
delays	O
and	O
changes	O
in	O
platform	O
.	O
</s>
<s>
A	O
version	O
for	O
the	O
3DO	B-Device
Interactive	I-Device
Multiplayer	I-Device
was	O
announced	O
,	O
but	O
the	O
game	O
spent	O
so	O
long	O
in	O
development	O
hell	O
that	O
by	O
the	O
time	O
it	O
was	O
finished	O
,	O
the	O
3DO	B-Device
(	O
which	O
was	O
not	O
even	O
launched	O
until	O
a	O
year	O
after	O
development	O
on	O
the	O
game	O
began	O
)	O
was	O
no	O
longer	O
commercially	O
viable	O
.	O
</s>
<s>
A	O
version	O
for	O
the	O
Amiga	B-Device
CD32	I-Device
was	O
also	O
in	O
development	O
but	O
never	O
released	O
.	O
</s>
<s>
An	O
Atari	B-Device
Jaguar	I-Device
CD	I-Device
version	O
was	O
also	O
announced	O
in	O
July	O
1994	O
,	O
with	O
internal	O
documents	O
from	O
Virgin	O
Interactive	O
Entertainment	O
stating	O
that	O
Amazing	B-Application
Studio	I-Application
showed	O
interest	O
in	O
starting	O
development	O
on	O
the	O
conversion	O
,	O
but	O
work	O
on	O
the	O
port	O
never	O
moved	O
forward	O
beyond	O
proposition	O
.	O
</s>
<s>
A	O
version	O
for	O
the	O
Panasonic	B-Device
M2	I-Device
was	O
also	O
in	O
the	O
works	O
.	O
</s>
<s>
In	O
1996	O
Sega	O
signed	O
a	O
deal	O
for	O
the	O
console	O
version	O
to	O
be	O
a	O
Sega	B-Device
Saturn	I-Device
exclusive	O
,	O
with	O
the	O
PC	O
version	O
to	O
be	O
held	O
off	O
until	O
after	O
the	O
Saturn	B-Device
version	O
was	O
released	O
.	O
</s>
<s>
A	O
release	O
date	O
of	O
October	O
1996	O
was	O
announced	O
with	O
the	O
Saturn	B-Device
version	O
,	O
but	O
as	O
this	O
date	O
approached	O
the	O
publisher	O
announced	O
that	O
the	O
game	O
would	O
not	O
be	O
ready	O
until	O
late	O
1997	O
.	O
</s>
<s>
Sega	B-Device
Saturn	I-Device
Magazine	O
commented	O
at	O
the	O
time	O
that	O
"	O
this	O
is	O
quickly	O
becoming	O
a	O
joke	O
of	O
a	O
situation	O
.	O
</s>
<s>
With	O
further	O
delays	O
,	O
the	O
Saturn	B-Device
was	O
also	O
no	O
longer	O
a	O
commercially	O
viable	O
platform	O
by	O
the	O
time	O
Heart	B-Application
of	I-Application
Darkness	I-Application
was	O
finished	O
.	O
</s>
<s>
In	O
a	O
2015	O
interview	O
with	O
Eurogamer	O
,	O
Éric	O
Chahi	O
said	O
Heart	B-Application
of	I-Application
Darkness	I-Application
was	O
one	O
of	O
his	O
most	O
difficult	O
projects	O
due	O
to	O
the	O
transitions	O
"	O
from	O
working	O
alone	O
to	O
working	O
with	O
a	O
team	O
in	O
the	O
context	O
where	O
the	O
industry	O
was	O
really	O
changing	O
with	O
the	O
CD-Rom	O
coming	O
,	O
the	O
PC	O
and	O
with	O
3D	O
arriving.	O
"	O
</s>
<s>
The	O
game	O
's	O
cutscenes	O
were	O
rendered	O
using	O
3D	B-Language
Studio	I-Language
(	O
later	O
known	O
as	O
3DS	B-Language
Max	I-Language
)	O
.	O
</s>
<s>
According	O
to	O
Chahi	O
,	O
the	O
team	O
did	O
consider	O
using	O
Silicon	O
Graphics	O
workstations	O
,	O
but	O
found	O
that	O
the	O
improvement	O
over	O
3D	B-Language
Studio	I-Language
was	O
not	O
enough	O
to	O
justify	O
the	O
expense	O
of	O
the	O
workstations	O
or	O
having	O
to	O
restart	O
the	O
work	O
on	O
the	O
cutscenes	O
.	O
</s>
<s>
Chahi	O
and	O
Chris	O
Delaporte	O
created	O
the	O
game	O
's	O
textures	O
themselves	O
rather	O
than	O
using	O
the	O
3D	B-Language
Studio	I-Language
texture	O
library	O
.	O
</s>
<s>
The	O
characters	O
were	O
sketched	O
in	O
different	O
poses	O
,	O
then	O
built	O
with	O
both	O
3D	B-Language
Studio	I-Language
and	O
different	O
paint	O
programs	O
on	O
a	O
PC	O
.	O
</s>
<s>
The	O
sprites	O
were	O
animated	O
with	O
Deluxe	B-Application
Paint	I-Application
and	O
Deluxe	O
Animator	O
.	O
</s>
<s>
Chahi	O
admitted	O
in	O
2007	O
that	O
the	O
6	O
year	O
development	O
of	O
Heart	B-Application
of	I-Application
Darkness	I-Application
had	O
completely	O
exhausted	O
him	O
.	O
</s>
<s>
He	O
made	O
a	O
return	O
to	O
the	O
games	O
industry	O
in	O
2011	O
with	O
the	O
release	O
of	O
From	B-Application
Dust	I-Application
.	O
</s>
<s>
The	O
PlayStation	B-Device
version	O
received	O
favorable	O
reviews	O
,	O
while	O
the	O
PC	O
version	O
received	O
above-average	O
reviews	O
,	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
GameRankings	O
.	O
</s>
<s>
Next	O
Generation	O
,	O
however	O
,	O
said	O
that	O
the	O
PlayStation	B-Device
version	O
was	O
"	O
very	O
much	O
a	O
visual	O
title	O
that	O
relies	O
heavily	O
on	O
the	O
storyline	O
to	O
keep	O
a	O
player	O
's	O
interest	O
.	O
</s>
<s>
Scary	O
Larry	O
of	O
GamePro	O
called	O
the	O
PlayStation	B-Device
version	O
"	O
a	O
new	O
,	O
more	O
whimsical	O
game	O
that	O
's	O
just	O
as	O
clever	O
as	O
Out	B-Application
of	I-Application
This	I-Application
World	I-Application
"	O
.	O
</s>
<s>
Jason	O
D'Aprile	O
said	O
of	O
the	O
PC	O
version	O
,	O
"	O
It	O
's	O
not	O
for	O
everyone	O
,	O
and	O
its	O
age	O
is	O
beginning	O
to	O
show	O
,	O
but	O
Heart	B-Application
of	I-Application
Darkness	I-Application
still	O
offers	O
superb	O
animation	O
,	O
music	O
,	O
graphics	O
,	O
and	O
atmosphere.	O
"	O
</s>
<s>
The	O
game	O
was	O
a	O
finalist	O
for	O
the	O
Academy	O
of	O
Interactive	O
Arts	O
&	O
Sciences	O
 '	O
1998	O
"	O
Outstanding	O
Achievement	O
in	O
Sound	O
and	O
Music	O
"	O
award	O
,	O
which	O
went	O
to	O
Road	B-Device
Rash	I-Device
3D	I-Device
.	O
</s>
