<s>
RoboWar	B-Application
is	O
an	O
open-source	B-Application
video	I-Application
game	I-Application
in	O
which	O
the	O
player	O
programs	B-General_Concept
onscreen	O
icon-like	O
robots	B-Algorithm
to	O
battle	O
each	O
other	O
with	O
animation	O
and	O
sound	O
effects	O
.	O
</s>
<s>
The	O
syntax	O
of	O
the	O
language	O
in	O
which	O
the	O
robots	B-Algorithm
are	O
programmed	O
is	O
a	O
relatively	O
simple	O
stack-based	B-Language
one	O
,	O
based	O
largely	O
on	O
IF	O
,	O
THEN	O
,	O
and	O
simply-defined	O
variables	O
.	O
</s>
<s>
25	O
RoboWar	B-Application
tournaments	O
were	O
held	O
in	O
the	O
past	O
between	O
1990	O
until	O
roughly	O
2003	O
,	O
when	O
tournaments	O
became	O
intermittent	O
and	O
many	O
of	O
the	O
major	O
coders	B-Application
moved	O
on	O
.	O
</s>
<s>
All	O
robots	B-Algorithm
from	O
all	O
tournaments	O
are	O
available	O
on	O
the	O
RoboWar	B-Application
website	O
.	O
</s>
<s>
The	O
RoboWar	B-Application
programming	O
language	O
,	O
RoboTalk	O
,	O
is	O
a	O
stack-oriented	B-Language
programming	I-Language
language	I-Language
and	O
is	O
similar	O
in	O
structure	O
to	O
FORTH	B-Application
.	O
</s>
<s>
RoboWar	B-Application
for	O
the	O
Macintosh	B-Device
was	O
notable	O
among	O
the	O
genre	O
of	O
autonomous	O
robot	B-Algorithm
programming	B-Language
games	I-Language
for	O
the	O
powerful	O
programming	O
model	O
it	O
exposed	O
to	O
the	O
gamer	O
.	O
</s>
<s>
By	O
the	O
early	O
1990s	O
,	O
RoboWar	B-Application
included	O
an	O
integrated	O
debugger	O
that	O
permitted	O
stepping	O
through	O
code	O
and	O
setting	O
breakpoints	O
.	O
</s>
<s>
Later	O
editions	O
of	O
the	O
RoboTalk	O
language	O
used	O
by	O
the	O
robots	B-Algorithm
(	O
a	O
cognate	O
of	O
the	O
HyperTalk	O
language	O
for	O
Apple	O
's	O
HyperCard	B-Application
)	O
included	O
support	O
for	O
interrupts	O
as	O
well	O
.	O
</s>
<s>
RoboWar	B-Application
was	O
originally	O
released	O
as	O
a	O
closed	B-Application
source	I-Application
shareware	B-License
game	O
in	O
1990	O
by	O
David	O
Harris	O
for	O
the	O
Apple	B-Device
Macintosh	I-Device
platform	O
.	O
</s>
<s>
The	O
source	O
code	O
has	O
since	O
been	O
released	O
and	O
implementations	O
are	O
now	O
also	O
available	O
for	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
It	O
was	O
based	O
upon	O
the	O
same	O
concepts	O
as	O
the	O
1981	O
Apple	B-Device
II	I-Device
game	O
RobotWar	B-Device
.	O
</s>
