<s>
Cal	B-Protocol
Ripken	I-Protocol
's	I-Protocol
Real	I-Protocol
Baseball	I-Protocol
,	O
also	O
known	O
as	O
Real	B-Protocol
Baseball	I-Protocol
Online	O
or	O
Ultimate	B-Protocol
Baseball	I-Protocol
Online	I-Protocol
,	O
was	O
the	O
first	O
free-to-play	O
baseball	B-Application
based	O
massively	B-Application
multiplayer	I-Application
online	I-Application
sports	O
game	O
(	O
MMOSG	O
)	O
.	O
</s>
<s>
The	O
game	O
was	O
designed	O
to	O
allow	O
18	O
human-controlled	O
players	O
to	O
compete	O
simultaneously	O
in	O
virtual	O
game	O
,	O
though	O
the	O
number	O
was	O
later	O
reduced	O
due	O
to	O
lag	B-Application
issues	O
.	O
</s>
<s>
Former	O
Major	O
League	O
Baseball	B-Application
player	O
Darrell	O
Evans	O
served	O
as	O
the	O
game	O
's	O
spokesperson/ambassador	O
prior	O
to	O
Cal	O
Ripken	O
's	O
endorsement	O
of	O
the	O
game	O
.	O
</s>
<s>
After	O
it	O
ceased	O
operation	O
in	O
2008	O
,	O
a	O
fan-led	O
open	O
source	O
project	O
was	O
attempted	O
before	O
Real	B-Protocol
Baseball	I-Protocol
's	O
successor	O
,	O
Big	O
League	O
Online	O
,	O
was	O
released	O
for	O
beta	O
testing	O
in	O
early	O
2011	O
.	O
</s>
<s>
Netamin	O
Communication	O
Corporation	O
was	O
the	O
developer	O
behind	O
Real	B-Protocol
Baseball	I-Protocol
Online	O
,	O
with	O
the	O
company	O
having	O
been	O
founded	O
in	O
1999	O
.	O
</s>
<s>
Netamin	O
became	O
the	O
world	O
's	O
first	O
company	O
to	O
develop	O
the	O
technology	O
to	O
build	O
a	O
Massively	B-Application
Multiplayer	I-Application
Online	I-Application
Sports	O
Game	O
(	O
MMSOG	O
)	O
,	O
led	O
by	O
its	O
founder	O
and	O
CEO	O
(	O
Chief	O
Entertainment	O
Officer	O
)	O
,	O
Andy	O
Wang	O
.	O
</s>
<s>
Former	O
Major	O
League	O
Baseball	B-Application
player	O
Darrell	O
Evans	O
served	O
as	O
the	O
game	O
's	O
"	O
Ambassador	O
"	O
for	O
the	O
majority	O
of	O
its	O
history	O
until	O
shortly	O
after	O
the	O
ESPN	O
deal	O
was	O
signed	O
.	O
</s>
<s>
After	O
the	O
release	O
of	O
Ultimate	B-Protocol
Baseball	I-Protocol
Online	I-Protocol
2006	I-Protocol
(	O
known	O
simply	O
as	O
UBO	O
)	O
,	O
the	O
game	O
had	O
officially	O
ended	O
its	O
Beta	O
phase	O
.	O
</s>
<s>
The	O
subscription	O
fee	O
was	O
met	O
with	O
negative	O
reaction	O
by	O
players	O
,	O
prompting	O
Netamin	O
to	O
create	O
a	O
new	O
season	O
and	O
league	O
system	O
,	O
while	O
making	O
the	O
game	O
free	O
to	O
play	O
for	O
those	O
only	O
participating	O
in	O
pickup	O
baseball	B-Application
games	O
.	O
</s>
<s>
Real	B-Protocol
Baseball	I-Protocol
was	O
a	O
massively	B-Application
multiplayer	I-Application
online	I-Application
sports	O
game	O
capable	O
of	O
fielding	O
up	O
to	O
18	O
players	O
a	O
game	O
,	O
occupying	O
all	O
active	O
positions	O
in	O
the	O
game	O
of	O
baseball	B-Application
.	O
</s>
<s>
However	O
,	O
players	O
often	O
refuse	O
to	O
field	O
18	O
due	O
to	O
lag	B-Application
and	O
synchronization	O
issues	O
,	O
and	O
games	O
rarely	O
ended	O
with	O
all	O
their	O
original	O
participants	O
.	O
</s>
<s>
Real	B-Protocol
Baseball	I-Protocol
Online	O
(	O
RBO	O
)	O
hosted	O
seasonal	O
leagues	O
that	O
featured	O
multiple	O
teams	O
of	O
different	O
levels	O
playing	O
against	O
each	O
other	O
for	O
the	O
championship	O
.	O
</s>
<s>
Managed	O
by	O
Netamin	O
and	O
Game	B-Device
Masters	I-Device
,	O
there	O
were	O
three	O
league	O
classes	O
:	O
MVP	O
,	O
All-Star	O
,	O
and	O
Major	O
.	O
</s>
<s>
Hats	O
,	O
shirts	O
,	O
pens	O
,	O
keychains	O
,	O
and	O
Darrell	O
Evans	O
autographed	O
baseballs	B-Application
were	O
given	O
away	O
as	O
prizes	O
for	O
entering	O
tournaments	O
.	O
</s>
<s>
|quote	O
=	O
The	O
service	O
for	O
Cal	B-Protocol
Ripken	I-Protocol
's	I-Protocol
Real	I-Protocol
Baseball	I-Protocol
is	O
currently	O
halted	O
until	O
further	O
notice	O
.	O
</s>
<s>
Real	B-Protocol
Baseball	I-Protocol
Online	O
became	O
inaccessible	O
to	O
play	O
in	O
October	O
2008	O
.	O
</s>
<s>
The	O
main	O
webpage	O
of	O
Real	B-Protocol
Baseball	I-Protocol
posted	O
a	O
statement	O
saying	O
,	O
"	O
The	O
service	O
for	O
Cal	B-Protocol
Ripken	I-Protocol
's	I-Protocol
Real	I-Protocol
Baseball	I-Protocol
is	O
currently	O
halted	O
until	O
further	O
notice	O
.	O
</s>
<s>
A	O
fan-initiated	O
open-source	O
project	O
titled	O
Multiplayer	O
Baseball	B-Application
Online''	O
was	O
in	O
active	O
development	O
from	O
about	O
early	O
2009	O
until	O
mid-2010	O
,	O
when	O
the	O
project	O
was	O
halted	O
.	O
</s>
<s>
Sometime	O
during	O
2010	O
a	O
new	O
company	O
carried	O
over	O
the	O
previous	O
Real	B-Protocol
Baseball	I-Protocol
game	O
into	O
a	O
new	O
endeavor	O
called	O
Big	O
League	O
Online	O
.	O
</s>
