<s>
Boulder	B-Application
Dash	I-Application
is	O
a	O
2D	O
maze-puzzle	O
video	O
game	O
released	O
in	O
1984	O
by	O
First	O
Star	O
Software	O
for	O
Atari	B-Device
8-bit	I-Device
computers	I-Device
.	O
</s>
<s>
It	O
was	O
created	O
by	O
Canadian	O
developers	O
Peter	B-Application
Liepa	I-Application
and	O
Chris	O
Gray	O
.	O
</s>
<s>
The	O
player	O
controls	O
Rockford	B-Application
,	O
who	O
collects	O
treasures	O
while	O
evading	O
hazards	O
.	O
</s>
<s>
Boulder	B-Application
Dash	I-Application
was	O
ported	O
to	O
many	O
8-bit	O
and	O
16-bit	O
systems	O
and	O
turned	O
into	O
a	O
coin-operated	O
arcade	O
game	O
.	O
</s>
<s>
It	O
was	O
followed	O
by	O
multiple	O
sequels	O
and	O
re-releases	O
and	O
influenced	O
games	O
such	O
as	O
Repton	B-Application
and	O
direct	O
clones	O
such	O
as	O
Emerald	B-Application
Mine	I-Application
.	O
</s>
<s>
As	O
of	O
January	O
1	O
,	O
2018	O
,	O
BBG	O
Entertainment	O
GmbH	O
owns	O
the	O
intellectual	O
property	O
rights	O
to	O
Boulder	B-Application
Dash	I-Application
.	O
</s>
<s>
thumb|left|Rockford	O
drops	O
a	O
series	O
of	O
boulders	O
on	O
butterflies	O
which	O
explode	O
into	O
diamonds	O
and	O
fall	O
down	O
the	O
shafts	O
.	O
</s>
<s>
Boulder	B-Application
Dash	I-Application
takes	O
place	O
in	O
a	O
series	O
of	O
caves	O
,	O
each	O
of	O
which	O
is	O
laid	O
out	O
as	O
rectangular	O
grid	O
of	O
blocks	O
.	O
</s>
<s>
The	O
player	O
guides	O
the	O
player	O
character	O
,	O
Rockford	B-Application
,	O
with	O
a	O
joystick	B-Device
or	O
cursor	B-Device
keys	I-Device
.	O
</s>
<s>
In	O
each	O
cave	O
,	O
Rockford	B-Application
has	O
to	O
collect	O
as	O
many	O
diamonds	O
as	O
are	O
needed	O
and	O
avoid	O
dangers	O
,	O
such	O
as	O
falling	O
rocks	O
.	O
</s>
<s>
As	O
an	O
aspiring	O
game-developer	O
,	O
Peter	B-Application
Liepa	I-Application
reached	O
out	O
to	O
a	O
local	O
publisher	O
called	O
"	O
In-Home	O
Software	O
"	O
.	O
</s>
<s>
He	O
started	O
coding	O
a	O
new	O
project	O
in	O
Forth	B-Application
,	O
which	O
took	O
about	O
six	O
months	O
.	O
</s>
<s>
About	O
the	O
time	O
it	O
became	O
clear	O
that	O
this	O
was	O
a	O
shippable	O
product	O
,	O
Liepa	O
migrated	O
Boulder	B-Application
Dash	I-Application
from	O
Forth	B-Application
to	O
assembler	O
.	O
</s>
<s>
Computer	O
Games	O
magazine	O
called	O
it	O
an	O
"	O
incredible	O
addicting	O
maze	B-Application
game	I-Application
along	O
the	O
lines	O
of	O
Dig	B-Application
Dug	I-Application
,	O
but	O
faster	O
and	O
more	O
exciting.	O
"	O
</s>
<s>
Mean	O
Machines	O
gave	O
the	O
Game	B-Device
Boy	I-Device
port	O
of	O
Boulder	B-Application
Dash	I-Application
a	O
score	O
of	O
90%	O
,	O
praising	O
it	O
as	O
"	O
one	O
of	O
the	O
finest	O
video	O
games	O
ever	O
written	O
"	O
,	O
describing	O
the	O
game	O
as	O
"	O
one	O
to	O
buy	O
as	O
soon	O
as	O
possible	O
"	O
and	O
noting	O
its	O
faithfulness	O
to	O
the	O
original	O
Commodore	O
64	O
version	O
.	O
</s>
<s>
The	O
ZX	B-Operating_System
Spectrum	I-Operating_System
version	O
was	O
placed	O
ninth	O
in	O
the	O
Your	O
Sinclair	O
Top	O
100	O
Speccy	O
Games	O
Of	O
All	O
Time	O
(	O
Ever	O
)	O
by	O
journalist	O
Stuart	O
Campbell	O
.	O
</s>
<s>
They	O
concluded	O
by	O
stating	O
"	O
though	O
it	O
does	O
n't	O
look	O
like	O
much	O
,	O
Boulder	B-Application
Dash	I-Application
rocks.	O
"	O
</s>
<s>
Boulder	B-Application
Dash	I-Application
was	O
included	O
in	O
the	O
top	O
30	O
Commodore	O
64	O
games	O
by	O
c’t	O
Magazin	O
in	O
Germany	O
.	O
</s>
<s>
Boulder	B-Application
Dash	I-Application
(	O
1985	O
–	O
Arcade	O
)	O
–	O
in	O
1985	O
another	O
arcade	O
version	O
was	O
released	O
on	O
Data	O
East	O
's	O
"	O
DECO	O
Cassette	O
System	O
"	O
,	O
with	O
improved	O
graphics	O
but	O
a	O
reduced	O
display	O
grid	O
on	O
a	O
vertical	O
monitor	O
.	O
</s>
<s>
Boulder	B-Application
Dash	I-Application
II	I-Application
(	O
1985	O
)	O
–	O
published	O
under	O
several	O
different	O
titles	O
;	O
Rockford	B-Application
's	O
Riot	O
on	O
the	O
MSX	B-Operating_System
,	O
Rockford	B-Application
's	O
Revenge	O
on	O
the	O
C64	O
.	O
</s>
<s>
The	O
second	O
release	O
in	O
Japan	O
was	O
titled	O
Champion	O
Boulder	B-Application
Dash	I-Application
,	O
but	O
it	O
is	O
not	O
a	O
port	O
of	O
the	O
western	O
game	O
.	O
</s>
<s>
Boulder	B-Application
Dash	I-Application
3	O
(	O
1986	O
–	O
Apple	B-Device
II	I-Device
,	O
C64	O
,	O
Spectrum	O
,	O
PC	O
)	O
–	O
monochrome	O
space-themed	O
graphics	O
and	O
poorly	O
designed	O
levels	O
made	O
this	O
a	O
critical	O
failure	O
.	O
</s>
<s>
Boulder	B-Application
Dash	I-Application
Construction	I-Application
Kit	I-Application
(	O
1986	O
–	O
Apple	B-Device
II	I-Device
,	O
C64	O
,	O
Spectrum	O
,	O
Atari	B-Device
8-bit	I-Device
computers	I-Device
,	O
Atari	O
ST	O
)	O
–	O
this	O
release	O
included	O
a	O
small	O
number	O
of	O
levels	O
(	O
12	O
caves	O
and	O
3	O
intermission	O
levels	O
)	O
,	O
but	O
was	O
titled	O
Boulder	B-Application
Dash	I-Application
IV	O
–	O
The	O
Game	O
for	O
the	O
Spectrum	O
re-release	O
.	O
</s>
<s>
Super	O
Boulder	B-Application
Dash	I-Application
(	O
1986	O
–	O
Apple	B-Device
II	I-Device
,	O
C64	O
,	O
PC	O
)	O
–	O
a	O
compilation	O
of	O
Boulder	B-Application
Dash	I-Application
and	O
Boulder	B-Application
Dash	I-Application
II	I-Application
published	O
by	O
Electronic	O
Arts	O
.	O
</s>
<s>
Rockford	B-Application
(	O
1988	O
–	O
Arcade	O
,	O
Amiga	O
,	O
Atari	B-Device
8-bit	I-Device
,	O
Atari	O
ST	O
,	O
Arcade	O
,	O
Spectrum	O
,	O
Amstrad	O
,	O
C64	O
)	O
-	O
Rockford	B-Application
was	O
originally	O
a	O
licensed	O
arcade	O
game	O
produced	O
by	O
Arcadia	O
Systems	O
,	O
and	O
later	O
converted	O
to	O
various	O
home	O
computer	O
formats	O
.	O
</s>
<s>
Boulder	B-Application
Dash	I-Application
EX	O
(	O
2002	O
–	O
Game	B-Device
Boy	I-Device
Advance	I-Device
)	O
-	O
this	O
one	O
has	O
a	O
new	O
"	O
EX	O
mode	O
"	O
and	O
"	O
Classic	O
mode	O
"	O
which	O
is	O
a	O
direct	O
port	O
of	O
the	O
1984	O
PC	O
version	O
.	O
</s>
<s>
GemJam	O
Gold	O
(	O
2003	O
–	O
PC	O
)	O
–	O
the	O
game	O
's	O
credits	O
claim	O
this	O
is	O
based	O
on	O
Boulder	B-Application
Dash	I-Application
,	O
and	O
is	O
licensed	O
by	O
First	O
Star	O
.	O
</s>
<s>
Boulder	B-Device
Dash	I-Device
:	I-Device
Rocks	I-Device
!	I-Device
</s>
<s>
Boulder	B-Application
Dash	I-Application
-	O
The	O
Collection	O
!	O
</s>
<s>
Boulder	B-Application
Dash	I-Application
(	O
2011	O
–	O
Atari	B-General_Concept
2600	I-General_Concept
)	O
-	O
limited	O
edition	O
of	O
250	O
copies	O
.	O
</s>
<s>
Boulder	B-Application
Dash	I-Application
30th	O
Anniversary	O
(	O
2014	O
–	O
iOS	B-Operating_System
,	O
Android	B-Application
,	O
Switch	O
,	O
PC	O
,	O
Mac	O
)	O
co-published	O
by	O
TapStar	O
Interactive	O
and	O
First	O
Star	O
Software	O
,	O
Inc	O
.	O
with	O
a	O
world	O
designed	O
by	O
the	O
original	O
creator	O
Peter	B-Application
Liepa	I-Application
as	O
well	O
as	O
another	O
world	O
by	O
TapStar	O
CEO	O
,	O
Chris	O
Gray	O
.	O
</s>
<s>
This	O
sequel	O
was	O
developed	O
in	O
collaboration	O
by	O
TapStar	O
Interactive	O
,	O
First	O
Star	O
Software	O
,	O
SoMa	O
Play	O
Inc	O
.	O
and	O
Katsu	O
Entertainment	O
LLC	O
(	O
2014	O
-	O
Android	B-Application
,	O
iOS	B-Operating_System
)	O
as	O
both	O
a	O
Premium	O
(	O
paid	O
)	O
and	O
a	O
freemium	O
game	O
.	O
</s>
<s>
Boulder	B-Application
Dash	I-Application
Deluxe	O
(	O
2021	O
–	O
Switch	O
,	O
Xbox	O
,	O
Atari	B-General_Concept
VCS	I-General_Concept
,	O
Steam	O
(	O
PC	O
and	O
Mac	O
)	O
,	O
Windows	O
Store	O
and	O
Mac	O
Store	O
)	O
–	O
developed	O
and	O
published	O
by	O
BBG	O
Entertainment	O
with	O
a	O
world	O
designed	O
by	O
the	O
original	O
creator	O
Peter	B-Application
Liepa	I-Application
and	O
a	O
Retro	O
world	O
with	O
the	O
20	O
original	O
levels	O
from	O
1984	O
.	O
</s>
