<s>
Knot	B-Application
in	I-Application
3D	I-Application
is	O
a	O
ZX	B-Operating_System
Spectrum	I-Operating_System
action	B-Application
game	I-Application
by	O
Malcolm	O
Evans	O
published	O
in	O
1983	O
by	O
New	O
Generation	O
Software	O
.	O
</s>
<s>
with	O
three	O
degrees	O
of	O
freedom	O
instead	O
of	O
only	O
two	O
)	O
version	O
of	O
the	O
Light	O
cycles	O
game	O
from	O
the	O
film	O
Tron	B-Language
.	O
</s>
<s>
The	O
graphics	O
were	O
highlighted	O
as	O
some	O
of	O
the	O
best	O
fast-action	O
colour	O
graphics	O
on	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
.	O
</s>
<s>
In	O
1997	O
,	O
Next	O
Generation	O
reflected	O
on	O
Knot	B-Application
in	I-Application
3D	I-Application
as	O
"	O
a	O
landmark	O
title	O
blighted	O
by	O
the	O
inability	O
of	O
most	O
players	O
to	O
think	O
in	O
terms	O
of	O
three	O
dimensions	O
fast	O
enough.	O
"	O
</s>
