<s>
3-D	B-Device
Docking	I-Device
Mission	I-Device
is	O
a	O
simulation	O
game	O
for	O
the	O
Apple	B-Device
II	I-Device
written	O
by	O
Chris	O
Oberth	O
.	O
</s>
<s>
The	O
game	O
was	O
published	O
by	O
Programma	O
International	O
and	O
The	O
Elektrik	O
Keyboard	O
of	O
Chicago	O
,	O
Illinois	O
in	O
1978	B-Application
.	O
</s>
<s>
The	O
object	O
of	O
3-D	B-Device
Docking	I-Device
Mission	I-Device
is	O
to	O
maneuver	O
a	O
spacecraft	O
through	O
an	O
asteroid	O
field	O
and	O
safely	O
dock	O
with	O
its	O
mothership	O
.	O
</s>
