<s>
Ant	B-Application
Attack	I-Application
is	O
a	O
ZX	B-Operating_System
Spectrum	I-Operating_System
computer	O
game	O
by	O
Sandy	O
White	O
,	O
published	O
by	O
Quicksilva	O
in	O
1983	B-Application
.	O
</s>
<s>
It	O
was	O
converted	O
to	O
the	O
Commodore	O
64	O
in	O
1984	B-Application
.	O
</s>
<s>
While	O
Zaxxon	B-Application
and	O
Q*bert	B-Application
previously	O
used	O
isometric	B-Application
projection	I-Application
,	O
Ant	B-Application
Attack	I-Application
added	O
an	O
extra	O
degree	O
of	O
freedom	O
(	O
ability	O
to	O
go	O
up	O
and	O
down	O
instead	O
of	O
just	O
north	O
,	O
south	O
,	O
east	O
and	O
west	O
)	O
,	O
and	O
it	O
may	O
be	O
the	O
first	O
isometric	O
game	O
for	O
personal	B-Device
computers	I-Device
.	O
</s>
<s>
The	O
same	O
type	O
of	O
isometric	B-Application
projection	I-Application
was	O
used	O
in	O
Sandy	O
White	O
's	O
later	O
Zombie	B-Application
Zombie	I-Application
.	O
</s>
<s>
Almost	O
all	O
of	O
the	O
game	O
code	O
was	O
written	O
by	O
hand	O
on	O
paper	O
using	O
assembler	O
mnemonics	O
,	O
then	O
manually	O
assembled	O
,	O
with	O
the	O
resulting	O
hexadecimal	O
digits	O
typed	O
sequentially	O
into	O
an	O
external	O
EEPROM	B-General_Concept
emulator	O
device	O
(	O
aka	O
SoftROM	O
or	O
"	O
softie	O
"	O
)	O
attached	O
to	O
a	O
host	O
Spectrum	O
.	O
</s>
<s>
Additionally	O
,	O
some	O
minor	O
add-on	O
routines	O
such	O
as	O
high	O
score	O
registration	O
were	O
added	O
on	O
to	O
the	O
core	O
game	O
using	O
regular	O
Sinclair	B-Language
BASIC	I-Language
.	O
</s>
<s>
Ant	B-Application
Attack	I-Application
was	O
well	O
received	O
by	O
gaming	O
press	O
.	O
</s>
<s>
The	O
game	O
was	O
nominated	O
in	O
the	O
1983	B-Application
Golden	O
Joystick	O
Awards	O
for	O
Best	O
Original	O
Game	O
of	O
the	O
Year	O
,	O
eventually	O
coming	O
second	O
to	O
Ah	B-Application
Diddums	I-Application
.	O
</s>
<s>
The	O
ZX	B-Operating_System
Spectrum	I-Operating_System
version	O
was	O
rated	O
number	O
14	O
in	O
the	O
Your	O
Sinclair'''s	O
Official	O
Top	O
100	O
Games	O
of	O
All	O
Time	O
.	O
</s>
