<s>
Open	B-Application
gaming	I-Application
is	O
a	O
movement	O
within	O
the	O
tabletop	O
role-playing	O
game	O
(	O
RPG	O
)	O
industry	O
with	O
superficial	O
similarities	O
to	O
the	O
open	B-Application
source	I-Application
software	I-Application
movement	O
.	O
</s>
<s>
A	O
number	O
of	O
role-playing	O
game	O
publishers	O
have	O
joined	O
the	O
open	B-Application
gaming	I-Application
movement	O
,	O
largely	O
as	O
a	O
result	O
of	O
the	O
release	O
of	O
the	O
original	O
System	O
Reference	O
Document	O
(	O
SRD	O
)	O
by	O
Wizards	O
of	O
the	O
Coast	O
,	O
which	O
consisted	O
of	O
the	O
core	O
rules	O
of	O
Dungeons	O
&	O
Dragons	O
3rd	O
edition	O
.	O
</s>
<s>
Open	B-Application
gaming	I-Application
has	O
also	O
been	O
popular	O
among	O
small	O
press	O
role-playing	O
game	O
and	O
supplement	O
authors	O
.	O
</s>
<s>
The	O
use	O
of	O
the	O
term	O
open	B-Application
gaming	I-Application
began	O
with	O
the	O
publication	O
of	O
the	O
original	O
SRD	O
and	O
the	O
simultaneous	O
release	O
of	O
the	O
Open	B-Application
Game	I-Application
License	I-Application
(	O
OGL	O
)	O
.	O
</s>
<s>
In	O
March	O
2004	O
,	O
Grey	O
Ghost	O
Games	O
acquired	O
the	O
copyright	O
of	O
Fudge	O
,	O
and	O
on	O
April	O
6	O
,	O
2005	O
,	O
they	O
released	O
a	O
version	O
of	O
Fudge	O
under	O
the	O
Open	B-Application
Game	I-Application
License	I-Application
,	O
making	O
it	O
open	O
for	O
commercial	O
use	O
.	O
</s>
<s>
The	O
phrase	O
"	O
opensource	O
roleplaying	O
"	O
was	O
used	O
as	O
early	O
as	O
1999	O
by	O
the	O
Dominion	B-Application
Rules	I-Application
role-playing	O
system	O
,	O
the	O
license	O
of	O
which	O
permitted	O
supplementary	O
material	O
to	O
be	O
written	O
for	O
its	O
rules	O
.	O
</s>
<s>
Another	O
"	O
open	O
"	O
system	O
was	O
the	O
Circe	O
role-playing	O
system	O
,	O
published	O
by	O
the	O
WorldForge	B-Protocol
project	O
under	O
the	O
GNU	B-Application
Free	I-Application
Documentation	I-Application
License	I-Application
.	O
</s>
<s>
Despite	O
Fudge	O
and	O
other	O
games	O
,	O
the	O
open	B-Application
gaming	I-Application
movement	O
did	O
not	O
gain	O
widespread	O
recognition	O
within	O
the	O
role-playing	O
game	O
industry	O
until	O
2000	O
,	O
when	O
Wizards	O
of	O
the	O
Coast	O
(	O
WotC	O
)	O
published	O
portions	O
of	O
the	O
3rd	O
Edition	O
of	O
Dungeons	O
&	O
Dragons	O
as	O
the	O
System	O
Reference	O
Document	O
under	O
the	O
Open	B-Application
Game	I-Application
License	I-Application
.	O
</s>
<s>
This	O
move	O
was	O
driven	O
by	O
Ryan	O
Dancey	O
then	O
Brand	O
Manager	O
for	O
WotC	O
,	O
who	O
drafted	O
the	O
Open	B-Application
Game	I-Application
License	I-Application
and	O
first	O
coined	O
the	O
term	O
"	O
open	B-Application
gaming	I-Application
"	O
with	O
respect	O
to	O
role-playing	O
games	O
.	O
</s>
<s>
The	O
Open	B-Application
Gaming	I-Application
Foundation	O
(	O
OGF	O
)	O
was	O
founded	O
by	O
Ryan	O
Dancey	O
as	O
an	O
independent	O
forum	O
for	O
discussion	O
of	O
open	B-Application
gaming	I-Application
among	O
the	O
members	O
of	O
the	O
fledgling	O
open	B-Application
gaming	I-Application
movement	O
.	O
</s>
<s>
The	O
OGF	O
consisted	O
of	O
a	O
web	O
site	O
and	O
a	O
series	O
of	O
mailing	O
lists	O
,	O
including	O
the	O
OGF-L	O
list	O
(	O
for	O
general	O
discussion	O
of	O
open	B-Application
gaming	I-Application
licensing	O
issues	O
)	O
and	O
the	O
OGF-d20-L	O
list	O
(	O
for	O
discussion	O
of	O
d20-specific	O
issues	O
)	O
.	O
</s>
<s>
Ryan	O
Dancey	O
was	O
an	O
employee	O
of	O
WotC	O
,	O
and	O
discussion	O
on	O
the	O
mailing	O
lists	O
tended	O
to	O
focus	O
on	O
d20	O
and	O
the	O
OGL	O
(	O
both	O
owned	O
by	O
WotC	O
)	O
rather	O
than	O
on	O
open	B-Application
gaming	I-Application
in	O
general	O
.	O
</s>
<s>
The	O
OGF	O
maintained	O
a	O
definition	O
of	O
an	O
"	O
open	B-Application
game	I-Application
license	I-Application
"	O
while	O
it	O
was	O
active	O
,	O
with	O
two	O
criteria	O
:	O
</s>
<s>
The	O
most	O
common	O
open	B-Application
gaming	I-Application
license	I-Application
in	O
use	O
by	O
commercial	O
role-playing	O
game	O
publishers	O
is	O
the	O
OGL	O
.	O
</s>
<s>
The	O
Open	B-Application
Gaming	I-Application
Foundation	O
describes	O
these	O
licences	O
as	O
‘	O
Known	O
Open	B-Application
Gaming	I-Application
Licenses’	O
.	O
</s>
<s>
The	O
following	O
games	O
are	O
under	O
an	O
Open	B-Application
Gaming	I-Application
Foundation-approved	O
license	O
or	O
a	O
free	B-Application
culture	I-Application
license	O
.	O
</s>
