<s>
The	B-Protocol
Shadow	I-Protocol
of	I-Protocol
Yserbius	I-Protocol
,	O
originally	O
published	O
by	O
Sierra	O
On-Line	O
and	O
developed	O
by	O
Joe	O
Ybarra	O
of	O
Ybarra	O
Productions	O
,	O
was	O
the	O
first	O
of	O
three	O
graphical	O
MUDs	B-Application
for	O
the	O
online	O
community	O
.	O
</s>
<s>
The	B-Protocol
Shadow	I-Protocol
of	I-Protocol
Yserbius	I-Protocol
and	O
its	O
successors	O
remained	O
online	O
until	O
1996	O
,	O
when	O
America	O
Online	O
purchased	O
the	O
rights	O
from	O
AT&T	O
for	O
an	O
undisclosed	O
price	O
(	O
rumored	O
to	O
be	O
$40	O
million	O
)	O
.	O
</s>
<s>
AOL	O
soon	O
abandoned	O
The	B-Protocol
Shadow	I-Protocol
of	I-Protocol
Yserbius	I-Protocol
,	O
which	O
was	O
a	O
competitor	O
to	O
its	O
existing	O
online	O
RPG	O
Neverwinter	B-Application
Nights	I-Application
.	O
</s>
<s>
In	O
late	O
2007	O
,	O
the	O
ImagiNation	O
Revival	O
Project	O
succeeded	O
in	O
resurrecting	O
the	O
long-dormant	O
ImagiNation	O
Network	O
by	O
using	O
the	O
original	O
client	O
software	O
coupled	O
with	O
DOSBox	B-Application
.	O
</s>
<s>
The	B-Protocol
Shadow	I-Protocol
of	I-Protocol
Yserbius	I-Protocol
was	O
again	O
available	O
for	O
online	O
play	O
with	O
all	O
features	O
,	O
graphics	O
,	O
sounds	O
,	O
and	O
such	O
fully	O
intact	O
and	O
functional	O
.	O
</s>
<s>
The	O
game	O
was	O
followed	O
by	O
two	O
sequels	O
:	O
The	B-Protocol
Fates	I-Protocol
of	I-Protocol
Twinion	I-Protocol
(	O
1993	O
)	O
and	O
The	B-Protocol
Ruins	I-Protocol
of	I-Protocol
Cawdor	I-Protocol
(	O
1995	O
)	O
.	O
</s>
<s>
The	O
available	O
professions	O
were	O
Barbarian	B-Application
,	O
Knight	O
,	O
Ranger	O
,	O
Thief	B-Application
,	O
Cleric	O
,	O
and	O
Wizard	O
.	O
</s>
<s>
Player	O
races	O
included	O
Human	O
,	O
Orc	B-Language
,	O
Elf	B-Application
,	O
Troll	O
,	O
Dwarf	O
,	O
Gnome	B-Application
,	O
Halfling	O
,	O
and	O
Gremlin	B-Language
.	O
</s>
<s>
The	O
magazine	O
concluded	O
that	O
"	O
Those	O
who	O
possess	O
the	O
money	O
would	O
be	O
well	O
served	O
to	O
try	O
out	O
TSN	O
and	O
Yserbius	B-Protocol
"	O
.	O
</s>
<s>
In	O
June	O
1994	O
Shadow	B-Protocol
of	I-Protocol
Yserbius	I-Protocol
:	O
Fates	O
of	O
Twinion	O
was	O
a	O
finalist	O
for	O
Computer	O
Gaming	O
Worlds	O
"	O
Online	O
Game	O
of	O
the	O
Year	O
"	O
award	O
,	O
losing	O
to	O
Multiplayer	B-Application
BattleTech	I-Application
.	O
</s>
<s>
Computer	O
Gaming	O
World	O
in	O
1994	O
stated	O
that	O
the	O
boxed	O
set	O
of	O
offline	O
versions	O
of	O
Yserbius	B-Protocol
and	O
Twinion	O
"	O
a	O
hollow	O
shell	O
of	O
its	O
vibrant	O
on-line	O
self	O
...	O
</s>
<s>
Playing	O
Yserbius	B-Protocol
without	O
fellow	O
on-line	O
gamers	O
is	O
like	O
being	O
in	O
an	O
amusement	O
park	O
after	O
hours	O
,	O
on	O
in	O
which	O
the	O
rides	O
are	O
n't	O
all	O
that	O
fun	O
to	O
begin	O
with	O
"	O
.	O
</s>
<s>
While	O
acknowledging	O
that	O
"	O
there	O
is	O
something	O
to	O
be	O
said	O
for	O
"	O
its	O
"	O
refreshingly	O
simple	O
"	O
gameplay	O
,	O
and	O
the	O
usefulness	O
of	O
an	O
offline	O
way	O
to	O
learn	O
and	O
level	O
up	O
characters	O
for	O
the	O
online	O
version	O
,	O
the	O
magazine	O
concluded	O
that	O
most	O
fantasy	O
RPG	O
players	O
would	O
be	O
disappointed	O
when	O
Betrayal	B-Application
at	I-Application
Krondor	I-Application
,	O
Lands	B-Application
of	I-Application
Lore	I-Application
,	O
and	O
other	O
alternatives	O
were	O
available	O
.	O
</s>
<s>
MedievaLands	O
is	O
a	O
complete	O
remake	O
of	O
The	B-Protocol
Shadow	I-Protocol
of	I-Protocol
Yserbius	I-Protocol
and	O
its	O
sequel	O
,	O
The	B-Protocol
Fates	I-Protocol
of	I-Protocol
Twinion	I-Protocol
.	O
</s>
