<s>
Haunt	B-Application
was	O
a	O
straightforward	O
but	O
engagingly	O
irreverent	O
text-based	B-Application
mainframe	O
computer	O
game	O
.	O
</s>
<s>
It	O
was	O
created	O
in	O
OPS4	B-Language
language	O
in	O
1979	O
by	O
John	O
E	O
.	O
Laird	O
.	O
</s>
<s>
In	O
Haunt	B-Application
,	O
the	O
player	O
explores	O
a	O
haunted	B-Application
house	I-Application
and	O
encounters	O
clues	O
(	O
flight	O
speed	O
of	O
an	O
African	O
swallow	O
)	O
,	O
wacky	O
creatures	O
(	O
rampaging	O
moose	O
)	O
,	O
and	O
random	O
elements	O
(	O
the	O
bus	O
)	O
as	O
s/he	O
tries	O
to	O
find	O
treasure	O
and	O
escape	O
the	O
house	O
alive	O
.	O
</s>
<s>
The	O
game	O
ran	O
on	O
DEC-10	B-Device
&	O
DEC-20	B-Device
mainframes	O
running	O
TOPS-10	B-Operating_System
or	O
TOPS-20	B-Operating_System
.	O
</s>
<s>
On	O
his	O
personal	O
website	O
,	O
Laird	O
wrote	O
"	O
I	O
'm	O
afraid	O
that	O
Haunt	B-Application
is	O
really	O
dead.	O
"	O
</s>
<s>
Haunt	B-Application
can	O
be	O
played	O
today	O
using	O
TOPS-20	B-Operating_System
emulation	O
.	O
</s>
<s>
One	O
such	O
emulator	O
can	O
be	O
found	O
by	O
using	O
telnet	O
and	O
going	O
to	O
the	O
site	O
'	O
twenex.org	O
 '	O
,	O
which	O
is	O
a	O
free	O
service	O
on	O
which	O
anyone	O
can	O
create	O
an	O
account	O
.	O
</s>
<s>
Haunt	B-Application
can	O
be	O
run	O
from	O
the	O
command	O
line	O
.	O
</s>
