<s>
Buck	B-Application
Rogers	I-Application
:	I-Application
Countdown	I-Application
to	I-Application
Doomsday	I-Application
is	O
a	O
role-playing	O
video	O
game	O
set	O
in	O
the	O
Buck	O
Rogers	O
XXVC	O
universe	O
.	O
</s>
<s>
It	O
was	O
published	O
in	O
1990	O
by	O
Strategic	O
Simulations	O
for	O
MS-DOS	B-Application
,	O
Commodore	O
64	O
,	O
and	O
Amiga	B-Device
.	O
</s>
<s>
A	O
Sega	B-Operating_System
Genesis	I-Operating_System
version	O
was	O
released	O
in	O
1991	O
.	O
</s>
<s>
Matrix	B-Application
Cubed	I-Application
is	O
the	O
1992	O
sequel	O
.	O
</s>
<s>
Solar	O
System	O
View	O
:	O
The	O
map	O
shows	O
the	O
positions	O
on	O
the	O
inner	O
planets	O
and	O
major	O
asteroids	O
from	O
an	O
"	O
overhead	O
"	O
perspective	B-Architecture
.	O
</s>
<s>
Adventuring	O
view	O
:	O
This	O
is	O
a	O
3D	O
view	O
that	O
shows	O
the	O
party	O
's	O
environment	O
form	O
their	O
perspective	B-Architecture
.	O
</s>
<s>
The	O
Sega	B-Operating_System
Genesis	I-Operating_System
version	O
of	O
the	O
game	O
shows	O
the	O
Adventuring	O
view	O
as	O
an	O
isometric	O
view	O
of	O
the	O
area	O
indicating	O
the	O
characters	O
behind	O
the	O
party	O
leader	O
(	O
i.e.	O
</s>
<s>
The	O
available	O
races	O
and	O
classes	O
are	O
also	O
more	O
limited	O
on	O
the	O
Sega	B-Operating_System
Mega	I-Operating_System
Drive/Genesis	I-Operating_System
version	O
.	O
</s>
<s>
Strategy	O
Pluss	O
Theo	O
Clarke	O
found	O
Countdown	O
to	O
Doomsdays	O
engine	O
and	O
mechanics	O
dated	O
,	O
noting	O
that	O
its	O
graphics	O
,	O
limited	O
on-screen	O
text	O
and	O
statistics-heavy	O
gameplay	O
were	O
"	O
far	O
behind	O
"	O
the	O
advances	O
of	O
Ultima	B-Application
VI	I-Application
and	O
other	O
games	O
.	O
</s>
<s>
Mega	O
placed	O
the	O
game	O
at	O
#39	O
in	O
their	O
Top	O
Mega	B-Operating_System
Drive	I-Operating_System
Games	O
of	O
All	O
Time	O
.	O
</s>
