<s>
Tornado	B-Application
Low	I-Application
Level	I-Application
(	O
also	O
known	O
as	O
T.L.L.	O
)	O
</s>
<s>
The	O
game	O
was	O
released	O
for	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
in	O
1984	O
,	O
with	O
ports	O
for	O
the	O
Amstrad	B-Device
CPC	I-Device
and	O
Commodore	O
64	O
in	O
1985	O
.	O
</s>
<s>
Tornado	B-Application
Low	I-Application
Level	I-Application
received	O
positive	O
reviews	O
for	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
and	O
Amstrad	B-Device
CPC	I-Device
versions	O
by	O
video	O
game	O
critics	O
,	O
both	O
on	O
release	O
and	O
in	O
retrospective	O
reviews	O
.	O
</s>
<s>
The	O
success	O
of	O
the	O
game	O
led	O
to	O
a	O
sequel	O
titled	O
Cyclone	B-Device
,	O
which	O
featured	O
a	O
similar	O
graphical	O
style	O
and	O
similar	O
play	O
.	O
</s>
<s>
Tornado	B-Application
Low	I-Application
Level	I-Application
was	O
developed	O
by	O
Costa	O
Panayi	O
and	O
published	O
by	O
the	O
United	O
Kingdom-based	O
company	O
Vortex	O
Software	O
,	O
co-founded	O
by	O
Panayi	O
.	O
</s>
<s>
The	O
idea	O
for	O
the	O
game	O
originated	O
from	O
the	O
popularity	O
of	O
Psion	B-Application
's	O
flight	B-Application
simulator	I-Application
program	O
Flight	B-Application
Simulation	I-Application
.	O
</s>
<s>
Panayi	O
considered	O
the	O
game	O
to	O
be	O
a	O
"	O
progression	O
of	O
the	O
ideas	O
"	O
he	O
had	O
in	O
his	O
previous	O
title	O
Android	B-Application
Two	I-Application
.	O
</s>
<s>
It	O
was	O
originally	O
released	O
for	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
in	O
1984	O
.	O
</s>
<s>
An	O
Amstrad	B-Device
CPC	I-Device
version	O
was	O
also	O
released	O
,	O
rewritten	O
to	O
use	O
the	O
full	O
capabilities	O
of	O
the	O
computer	O
.	O
</s>
<s>
Upon	O
release	O
,	O
Tornado	B-Application
Low	I-Application
Level	I-Application
was	O
a	O
commercial	O
success	O
,	O
with	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
version	O
debuting	O
at	O
number	O
three	O
on	O
Personal	O
Computer	O
Games	O
top	O
fifty	O
charts	O
.	O
</s>
<s>
Both	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
and	O
Amstrad	B-Device
CPC	I-Device
versions	O
of	O
the	O
game	O
received	O
positive	O
reviews	O
from	O
video	O
game	O
critics	O
.	O
</s>
<s>
Jim	O
Watson	O
of	O
ZX	O
Computing	O
listed	O
it	O
as	O
one	O
of	O
the	O
best	O
games	O
for	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
in	O
1984	O
.	O
</s>
<s>
In	O
1987	O
,	O
Wade	O
listed	O
it	O
as	O
one	O
of	O
the	O
best	O
games	O
for	O
the	O
then	O
two-year-old	O
Amstrad	B-Device
CPC	I-Device
.	O
</s>
<s>
With	O
the	O
success	O
of	O
Tornado	B-Application
Low	I-Application
Level	I-Application
,	O
Vortex	O
Software	O
released	O
Cyclone	B-Device
in	O
1985	O
.	O
</s>
<s>
A	O
sequel	O
to	O
T.L.L.	O
,	O
Cyclone	B-Device
has	O
the	O
player	O
fly	O
a	O
helicopter	B-Application
to	O
collect	O
medical	O
supplies	O
in	O
the	O
middle	O
of	O
a	O
cyclone	B-Device
phenomenon	I-Device
.	O
</s>
