<s>
Bubble	B-Application
Bus	I-Application
Software	I-Application
was	O
a	O
publisher	O
of	O
video	O
game	O
software	O
for	O
home	O
computers	O
in	O
the	O
mid-1980s	O
,	O
founded	O
by	O
Mark	O
Meakins	O
and	O
based	O
in	O
Tonbridge	O
,	O
Kent	O
.	O
</s>
<s>
Their	O
releases	O
targeted	O
popular	O
home	O
computers	O
of	O
the	O
time	O
,	O
such	O
as	O
the	O
Commodore	O
64	O
,	O
VIC-20	B-Device
and	O
ZX	B-Operating_System
Spectrum	I-Operating_System
.	O
</s>
<s>
Their	O
most	O
notable	O
releases	O
were	O
Starquake	B-Application
and	O
Wizard	O
's	O
Lair	O
,	O
both	O
written	O
by	O
Stephen	O
Crow	O
.	O
</s>
<s>
Wizard	O
's	O
Lair	O
was	O
notable	O
for	O
its	O
similarity	O
to	O
both	O
Atic	B-Application
Atac	I-Application
and	O
Sabre	B-Application
Wulf	I-Application
.	O
</s>
