<s>
Heartlight	B-Application
is	O
a	O
puzzle	O
game	O
originally	O
developed	O
by	O
Janusz	O
Pelc	O
for	O
the	O
Atari	B-Device
8-bit	I-Device
family	I-Device
in	O
1990	O
.	O
</s>
<s>
In	O
1994	O
,	O
an	O
DOS	B-Device
port	O
(	O
Heartlight	B-Application
PC	O
)	O
was	O
published	O
by	O
Epic	O
MegaGames	O
along	O
with	O
two	O
other	O
games	O
by	O
Janusz	O
Pelc	O
in	O
the	O
Epic	O
Puzzle	O
Pack	O
.	O
</s>
<s>
The	O
shareware	B-License
version	O
has	O
20	O
levels	O
and	O
the	O
full	O
version	O
(	O
Heartlight	B-Application
Deluxe	O
)	O
has	O
70	O
levels	O
.	O
</s>
<s>
In	O
2006	O
,	O
Maciej	O
Miąsik	O
,	O
co-author	O
of	O
the	O
DOS	B-Device
version	O
,	O
recompiled	O
it	O
and	O
released	O
it	O
under	O
the	O
Creative	O
Commons	O
CC	O
BY-SA	O
2.5	O
license	O
as	O
freeware	B-License
.	O
</s>
<s>
In	O
2020	O
,	O
a	O
WebGL	B-Library
remake	O
was	O
released	O
with	O
updated	O
graphics	O
.	O
</s>
<s>
The	O
game	O
is	O
set	O
on	O
a	O
12×20	O
square	O
grid	O
,	O
with	O
similar	O
game	O
mechanics	O
to	O
Boulder	O
Dash	O
and	O
Supaplex	B-Application
.	O
</s>
<s>
Computer	O
Gaming	O
Worlds	O
Chuck	O
Miller	O
in	O
June	O
1994	O
praised	O
Heartlight	B-Application
as	O
"	O
a	O
delightful	O
logic-based	O
game	O
offering	O
a	O
good	O
mix	O
of	O
arcade	O
action	O
and	O
conundrums	O
"	O
.	O
</s>
<s>
The	O
game	O
was	O
later	O
released	O
as	O
part	O
of	O
the	O
Epic	O
Puzzle	O
Pack	O
(	O
with	O
Robbo	B-Application
and	O
Electro	B-Application
)	O
which	O
was	O
reviewed	O
in	O
1994	O
in	O
Dragon	O
#206	O
by	O
Sandy	O
Petersen	O
in	O
the	O
"	O
Eye	O
of	O
the	O
Monitor	O
"	O
column	O
.	O
</s>
