<s>
Domain	B-Application
of	I-Application
Heroes	I-Application
was	O
a	O
free-to-play	O
,	O
text-based	O
MMORPG	B-Protocol
by	O
American	O
studio	O
Tandem	B-Application
Games	I-Application
.	O
</s>
<s>
It	O
was	O
a	O
browser	B-Protocol
based	I-Protocol
game	I-Protocol
,	O
designed	O
so	O
that	O
it	O
can	O
be	O
played	O
whilst	O
running	O
other	O
games	O
,	O
or	O
working	O
.	O
</s>
<s>
Domain	B-Application
of	I-Application
Heroes	I-Application
used	O
text	O
and	O
some	O
artwork	O
to	O
describe	O
the	O
game	O
environment	O
.	O
</s>
<s>
There	O
were	O
3	O
Factions	O
,	O
27	O
Classes	O
,	O
and	O
30	O
Races	O
in	O
Domain	B-Application
of	I-Application
Heroes	I-Application
,	O
the	O
full	O
list	O
of	O
which	O
is	O
within	O
"	O
The	O
Great	O
Codex	O
"	O
in	O
the	O
game	O
.	O
</s>
<s>
Once	O
a	O
player	O
chose	O
one	O
of	O
each	O
of	O
these	O
they	O
then	O
explore	O
the	O
Domain	B-Application
of	I-Application
Heroes	I-Application
world	O
and	O
its	O
locales	O
.	O
</s>
<s>
Domain	B-Application
of	I-Application
Heroes	I-Application
was	O
designed	O
to	O
run	O
in	O
the	O
background	O
if	O
necessary	O
.	O
</s>
<s>
Domain	B-Application
of	I-Application
Heroes	I-Application
was	O
created	O
by	O
Tandem	B-Application
Games	I-Application
in	O
2008	O
.	O
</s>
<s>
Tandem	B-Application
Games	I-Application
partnered	O
with	O
Intel	O
in	O
their	O
Software	O
Partner	O
Program	O
during	O
the	O
creation	O
of	O
Domain	B-Application
of	I-Application
Heroes	I-Application
.	O
</s>
<s>
Domain	B-Application
of	I-Application
Heroes	I-Application
and	O
its	O
parent	O
studio	O
,	O
Tandem	B-Application
Games	I-Application
,	O
also	O
used	O
the	O
game	O
to	O
donate	O
to	O
charity	O
.	O
</s>
<s>
On	O
November	O
2	O
,	O
2017	O
,	O
Tandem	B-Application
Games	I-Application
declared	O
they	O
were	O
shutting	O
down	O
the	O
game	O
.	O
</s>
