<s>
Rescue	B-Application
at	I-Application
Rigel	I-Application
is	O
a	O
1980	O
science	O
fiction	O
role-playing	O
video	O
game	O
written	O
and	O
published	O
by	O
Automated	O
Simulations	O
(	O
later	O
known	O
as	O
Epyx	O
)	O
.	O
</s>
<s>
It	O
is	O
based	O
on	O
a	O
modified	O
version	O
of	O
their	O
Temple	B-Application
of	I-Application
Apshai	I-Application
game	O
engine	O
,	O
which	O
was	O
used	O
for	O
most	O
of	O
their	O
releases	O
in	O
this	O
era	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
for	O
the	O
Apple	B-Device
II	I-Device
,	O
IBM	B-Device
PC	I-Device
(	O
as	O
a	O
self-booting	O
disk	O
)	O
,	O
TRS-80	B-Device
,	O
Commodore	B-Device
PET	I-Device
,	O
VIC-20	B-Device
,	O
and	O
Atari	B-Device
8-bit	I-Device
family	I-Device
.	O
</s>
<s>
Rescue	B-Application
at	I-Application
Rigel	I-Application
was	O
followed	O
by	O
Star	B-Application
Warrior	I-Application
,	O
and	O
the	O
two	O
rebranded	O
to	O
be	O
part	O
of	O
their	O
"	O
Starquest	O
"	O
series	O
.	O
</s>
<s>
Smith	O
must	O
try	O
to	O
rescue	O
captives	O
from	O
the	O
interior	O
of	O
an	O
asteroid	O
orbiting	O
the	O
star	O
Rigel	B-Device
.	O
</s>
<s>
Players	O
must	O
defeat	O
or	O
avoid	O
the	O
enemies	O
wandering	O
the	O
base	O
:	O
the	O
alien	O
Tollahs	O
,	O
two	O
types	O
of	O
armed	O
robots	B-Algorithm
,	O
a	O
six-legged	O
"	O
cerbanth	O
"	O
,	O
and	O
a	O
huge	O
amoebic	B-Operating_System
slug	O
.	O
</s>
<s>
Rescue	B-Application
at	I-Application
Rigel	I-Application
is	O
very	O
similar	O
to	O
Temple	B-Application
of	I-Application
Apshai	I-Application
,	O
a	O
popular	O
dungeon	O
crawl	O
by	O
Epyx	O
,	O
part	O
of	O
their	O
"	O
Dunjonquest	O
"	O
series	O
.	O
</s>
<s>
Rescue	B-Application
at	I-Application
Rigel	I-Application
had	O
a	O
timer	O
similar	O
to	O
The	B-Application
Datestones	I-Application
of	I-Application
Ryn	I-Application
,	O
an	O
earlier	O
Dunjonquest	O
game	O
.	O
</s>
<s>
Rescue	B-Application
at	I-Application
Rigel	I-Application
used	O
the	O
concept	O
of	O
providing	O
room	O
descriptions	O
similar	O
to	O
those	O
used	O
in	O
some	O
Dunjonquest	O
games	O
,	O
but	O
instead	O
of	O
unique	O
descriptions	O
for	O
numbered	O
rooms	O
,	O
the	O
game	O
had	O
multiple	O
rooms	O
labeled	O
"	O
Sanctum	O
"	O
,	O
for	O
example	O
,	O
and	O
a	O
detailed	O
description	O
of	O
what	O
typical	O
Sanctums	O
contained	O
was	O
provided	O
in	O
the	O
manual	O
along	O
with	O
about	O
a	O
dozen	O
other	O
room	O
types	O
.	O
</s>
<s>
Bruce	O
F	O
.	O
Webster	O
reviewed	O
Rescue	B-Application
at	I-Application
Rigel	I-Application
in	O
The	O
Space	O
Gamer	O
No	O
.	O
</s>
<s>
Jerry	O
Pournelle	O
reported	O
in	O
BYTE	O
in	O
1983	O
that	O
Rescue	B-Application
at	I-Application
Rigel	I-Application
was	O
one	O
of	O
several	O
Epyx	O
games	O
his	O
sons	O
enjoyed	O
playing	O
.	O
</s>
