<s>
Xi	B-General_Concept
(	O
or	O
)	O
was	O
the	O
world	O
's	O
first	O
console-based	O
and	O
virtual	O
world-based	O
alternate	O
reality	O
game	O
.	O
</s>
<s>
It	O
was	O
a	O
one-time-only	O
play	O
,	O
unfolding	O
in	O
real	O
time	O
,	O
and	O
only	O
available	O
on	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
through	O
the	O
social	O
gaming	O
network	O
,	O
PlayStation	B-Protocol
Home	I-Protocol
.	O
</s>
<s>
The	O
game	O
was	O
an	O
adventure	O
to	O
help	O
find	O
"	O
Jess	O
"	O
and	O
the	O
meaning	O
of	O
Xi	B-General_Concept
by	O
collecting	O
fragments	O
and	O
butterflies	O
found	O
in	O
a	O
series	O
of	O
secret	O
areas	O
in	O
Home	O
that	O
changed	O
frequently	O
.	O
</s>
<s>
The	O
game	O
was	O
created	O
by	O
nDreams	O
who	O
released	O
several	O
spaces	O
for	O
Xi	B-General_Concept
.	O
</s>
<s>
Xi	B-General_Concept
and	O
all	O
of	O
the	O
corresponding	O
spaces	O
were	O
exclusive	O
to	O
the	O
European	O
and	O
North	O
American	O
versions	O
of	O
PlayStation	B-Protocol
Home	I-Protocol
,	O
though	O
there	O
were	O
also	O
websites	O
,	O
videos	O
,	O
printed	O
media	O
and	O
live	O
events	O
which	O
were	O
accessible	O
to	O
anyone	O
.	O
</s>
<s>
In	O
September	O
2009	O
,	O
it	O
was	O
reported	O
that	O
the	O
number	O
of	O
visits	O
to	O
the	O
Xi	B-General_Concept
spaces	O
,	O
including	O
the	O
ones	O
after	O
Xi	B-General_Concept
's	O
completion	O
,	O
had	O
exceeded	O
5	O
million	O
visits	O
.	O
</s>
<s>
A	O
sequel	O
,	O
Xi	B-General_Concept
:	O
Continuum	O
,	O
was	O
released	O
in	O
December	O
2012	O
.	O
</s>
<s>
"	O
Xi	B-General_Concept
started	O
at	O
the	O
Edinburgh	O
Interactive	O
Festival	O
a	O
couple	O
of	O
years	O
ago	O
,	O
"	O
(	O
from	O
2009	O
)	O
says	O
Patrick	O
O'Luanaigh	O
,	O
the	O
founder	O
of	O
nDreams	O
.	O
</s>
<s>
One	O
of	O
the	O
game	O
's	O
developers	O
revealed	O
that	O
it	O
took	O
18	O
months	O
for	O
nDreams	O
to	O
develop	O
Xi	B-General_Concept
.	O
</s>
<s>
The	O
developer	O
also	O
revealed	O
that	O
a	O
challenge	O
of	O
Xi	B-General_Concept
was	O
that	O
it	O
was	O
live	O
and	O
they	O
had	O
to	O
change	O
things	O
in	O
the	O
game	O
because	O
of	O
the	O
players	O
taking	O
part	O
in	O
the	O
game	O
in	O
real	O
time	O
.	O
</s>
<s>
The	O
first	O
clue	O
to	O
appear	O
in	O
the	O
News	O
section	O
was	O
"	O
jess	O
are	O
you	O
there	O
?	O
----------Xi	O
is	O
almost	O
ready	O
"	O
.	O
</s>
<s>
The	O
first	O
video	O
appeared	O
on	O
February	O
12	O
,	O
2009	O
,	O
in	O
Home	O
's	O
Bowling	O
Alley	O
(	O
North	O
America	O
)	O
and	O
Home	O
Square	O
(	O
Europe	O
)	O
and	O
featured	O
a	O
big	O
black	O
monolith	O
bearing	O
the	O
Greek	O
capital	O
letter	O
'	O
Xi	B-General_Concept
 '	O
and	O
the	O
graffiti	O
version	O
of	O
the	O
'	O
Xi	B-General_Concept
 '	O
logo	O
(	O
more	O
specifically	O
,	O
the	O
one	O
that	O
was	O
located	O
in	O
Europe	O
's	O
Home	O
Square	O
)	O
.	O
</s>
<s>
The	O
monolith	O
was	O
later	O
revealed	O
to	O
be	O
a	O
big	O
black	O
door	O
in	O
The	O
Hub	O
of	O
'	O
Xi	B-General_Concept
 '	O
.	O
</s>
<s>
Between	O
February	O
12	O
and	O
March	O
23	O
,	O
there	O
were	O
many	O
clues	O
and	O
videos	O
released	O
in	O
Home	O
hinting	O
at	O
the	O
nature	O
and	O
launch	O
date	O
of	O
Xi	B-General_Concept
.	O
</s>
<s>
Xi	B-General_Concept
had	O
begun	O
in	O
earnest	O
.	O
</s>
<s>
New	O
fragments	O
and	O
butterflies	O
were	O
made	O
available	O
every	O
few	O
days	O
,	O
as	O
the	O
Xi	B-General_Concept
spaces	O
were	O
updated	O
.	O
</s>
<s>
Fragments	O
were	O
won	O
by	O
playing	O
mini-games	O
,	O
solving	O
puzzles	O
,	O
and	O
searching	O
for	O
clues	O
in	O
Home	O
and	O
in	O
the	O
associated	O
Xi	B-General_Concept
websites	O
.	O
</s>
<s>
All	O
24	O
fragments	O
were	O
required	O
to	O
complete	O
Xi	B-General_Concept
;	O
the	O
butterfly	O
expeditions	O
were	O
entirely	O
optional	O
(	O
tougher	O
)	O
side-quests	O
that	O
often	O
called	O
for	O
cooperation	O
and	O
collaboration	O
between	O
players	O
in	O
the	O
real	O
world	O
.	O
</s>
<s>
The	O
game	O
's	O
story	O
followed	O
Jess	O
's	O
struggle	O
to	O
protect	O
a	O
secret	O
project	O
she	O
'd	O
developed	O
,	O
codenamed	O
'	O
Xi	B-General_Concept
 '	O
.	O
</s>
<s>
The	O
main	O
antagonist	O
was	O
a	O
corporation	O
called	O
Veilcorp	O
,	O
which	O
claimed	O
Jess	O
had	O
been	O
developing	O
Xi	B-General_Concept
for	O
them	O
until	O
she	O
absconded	O
.	O
</s>
<s>
Immediately	O
after	O
passing	O
through	O
the	O
monolith	O
,	O
players	O
were	O
prompted	O
with	O
a	O
message	O
asking	O
the	O
user	O
if	O
they	O
wanted	O
to	O
complete	O
Xi	B-General_Concept
or	O
return	O
to	O
The	O
Hub	O
.	O
</s>
<s>
If	O
they	O
chose	O
to	O
complete	O
Xi	B-General_Concept
,	O
they	O
were	O
prompted	O
with	O
another	O
message	O
warning	O
them	O
that	O
if	O
they	O
continued	O
Xi	B-General_Concept
they	O
will	O
no	O
longer	O
be	O
able	O
to	O
access	O
the	O
Xi	B-General_Concept
spaces	O
.	O
</s>
<s>
After	O
definitively	O
choosing	O
again	O
to	O
complete	O
Xi	B-General_Concept
,	O
the	O
users	O
were	O
taken	O
to	O
The	O
White	O
Hall	O
.	O
</s>
<s>
At	O
this	O
point	O
,	O
the	O
player	O
was	O
given	O
a	O
dilemma	O
:	O
Release	O
Xi	B-General_Concept
or	O
Destroy	O
Xi	B-General_Concept
.	O
</s>
<s>
The	O
player	O
had	O
to	O
choose	O
one	O
way	O
or	O
the	O
other	O
based	O
only	O
on	O
the	O
patchy	O
information	O
they	O
had	O
learned	O
about	O
Xi	B-General_Concept
from	O
the	O
various	O
biased	O
sources	O
during	O
the	O
game	O
.	O
</s>
<s>
In	O
either	O
case	O
,	O
the	O
outcome	O
was	O
unpleasant	O
:	O
release	O
Xi	B-General_Concept
and	O
it	O
turns	O
out	O
to	O
be	O
a	O
virus	O
that	O
brings	O
down	O
the	O
banking	O
system	O
,	O
causes	O
global	O
chaos	O
,	O
but	O
perhaps	O
resets	O
the	O
human	O
race	O
on	O
a	O
more	O
sustainable	O
course	O
;	O
destroy	O
Xi	B-General_Concept
and	O
it	O
turns	O
out	O
to	O
have	O
been	O
an	O
anti-spyware	O
virus	O
designed	O
to	O
protect	O
the	O
privacy	O
of	O
the	O
world	O
's	O
citizens	O
,	O
and	O
by	O
destroying	O
it	O
,	O
the	O
player	O
had	O
allowed	O
Veilcorp	O
to	O
take	O
total	O
control	O
of	O
business	O
,	O
government	O
and	O
all	O
personal	O
freedoms	O
.	O
</s>
<s>
The	O
Xi	B-General_Concept
Trophy	O
was	O
for	O
simply	O
completing	O
the	O
game	O
.	O
</s>
<s>
The	O
Xi	B-General_Concept
Fragment	O
Master	O
Trophy	O
was	O
for	O
completing	O
Xi	B-General_Concept
with	O
all	O
24	O
fragments	O
;	O
and	O
the	O
Xi	B-General_Concept
Fragment	O
Collector	O
Trophy	O
was	O
for	O
completing	O
Xi	B-General_Concept
with	O
at	O
least	O
12	O
fragments	O
.	O
</s>
<s>
The	O
Xi	B-General_Concept
Butterfly	O
Master	O
Trophy	O
was	O
for	O
completing	O
Xi	B-General_Concept
with	O
all	O
20	O
butterflies	O
;	O
and	O
the	O
Xi	B-General_Concept
Butterfly	O
Collector	O
Trophy	O
was	O
for	O
completing	O
Xi	B-General_Concept
with	O
at	O
least	O
10	O
butterflies	O
.	O
</s>
<s>
There	O
were	O
a	O
total	O
of	O
12	O
physical	O
spaces	O
in	O
Xi	B-General_Concept
.	O
</s>
<s>
Each	O
space	O
served	O
a	O
purpose	O
in	O
completing	O
Xi	B-General_Concept
.	O
</s>
<s>
The	O
only	O
spaces	O
that	O
are	O
now	O
available	O
in	O
Home	O
are	O
the	O
Xi	B-General_Concept
Museum	O
(	O
formerly	O
Xi	B-General_Concept
Alumni	O
Hub	O
)	O
,	O
the	O
Alpha	O
Zone	O
1	O
spaces	O
,	O
and	O
the	O
Alpha	O
Zone	O
3	O
spaces	O
.	O
</s>
<s>
The	O
fragments	O
are	O
different	O
pieces	O
of	O
a	O
picture	O
of	O
the	O
logo	O
of	O
Xi	B-General_Concept
which	O
were	O
viewable	O
in	O
the	O
HoloPAD	O
under	O
Display	O
fragments	O
.	O
</s>
<s>
The	O
fragments	O
were	O
the	O
main	O
objectives	O
of	O
Xi	B-General_Concept
for	O
the	O
users	O
to	O
complete	O
.	O
</s>
<s>
In	O
addition	O
to	O
obtaining	O
the	O
sixth	O
fragment	O
,	O
users	O
also	O
received	O
a	O
Xi	B-General_Concept
T-shirt	O
for	O
their	O
avatar	O
.	O
</s>
<s>
The	O
butterflies	O
were	O
optional	O
in	O
completing	O
Xi	B-General_Concept
and	O
were	O
for	O
the	O
users	O
who	O
wanted	O
a	O
real	O
challenge	O
.	O
</s>
<s>
After	O
completing	O
Xi	B-General_Concept
and	O
being	O
returned	O
to	O
the	O
central	O
meeting	O
point	O
,	O
users	O
were	O
no	O
longer	O
able	O
to	O
access	O
The	O
Hub	O
,	O
but	O
instead	O
,	O
were	O
able	O
to	O
access	O
the	O
Xi	B-General_Concept
Alumni	O
Hub	O
through	O
the	O
same	O
Teleport	O
that	O
The	O
Hub	O
was	O
accessed	O
through	O
.	O
</s>
<s>
After	O
entering	O
the	O
Xi	B-General_Concept
Alumni	O
Hub	O
,	O
users	O
were	O
presented	O
with	O
one	O
final	O
challenge	O
in	O
which	O
completing	O
this	O
final	O
challenge	O
awarded	O
the	O
users	O
a	O
Xi	B-General_Concept
Alumni	O
T-shirt	O
for	O
their	O
avatar	O
.	O
</s>
<s>
On	O
July	O
2	O
,	O
2009	O
,	O
the	O
Teleport	O
and	O
Manhole	O
cover	O
were	O
removed	O
from	O
the	O
central	O
meeting	O
point	O
and	O
the	O
Xi	B-General_Concept
Alumni	O
Hub	O
was	O
added	O
to	O
the	O
world	O
map	O
(	O
now	O
Navigator	O
)	O
under	O
the	O
Xi	B-General_Concept
logo	O
chip	O
in	O
the	O
users	O
Menu	O
Pad	O
.	O
</s>
<s>
All	O
of	O
the	O
Xi	B-General_Concept
spaces	O
were	O
removed	O
except	O
the	O
Xi	B-General_Concept
Alumni	O
Hub	O
and	O
Alpha	O
Zone	O
1	O
-	O
Game	O
Test	O
Area	O
,	O
Maximum-Tilt	O
Lobby	O
,	O
&	O
Adventure	O
Lobby	O
.	O
</s>
<s>
The	O
Alpha	O
Zone	O
1	O
spaces	O
were	O
accessed	O
through	O
the	O
teleport	O
in	O
the	O
Xi	B-General_Concept
Alumni	O
Hub	O
.	O
</s>
<s>
He	O
also	O
notes	O
how	O
the	O
company	O
was	O
fortunate	O
that	O
there	O
was	O
a	O
fairly	O
large	O
Home	O
community	O
already	O
there	O
and	O
were	O
really	O
satisfied	O
how	O
people	O
of	O
different	O
languages	O
were	O
communicating	O
with	O
each	O
other	O
by	O
posting	O
in	O
other	O
forums	O
,	O
not	O
of	O
their	O
own	O
language	O
,	O
and	O
helping	O
each	O
other	O
out	O
to	O
solve	O
Xi	B-General_Concept
.	O
</s>
<s>
The	O
Xi	B-General_Concept
Alumni	O
Hub	O
was	O
temporarily	O
removed	O
from	O
PlayStation	B-Protocol
Home	I-Protocol
on	O
April	O
22	O
,	O
2010	O
.	O
</s>
<s>
nDreams	O
also	O
took	O
this	O
opportunity	O
to	O
provide	O
access	O
to	O
some	O
content	O
from	O
Xi	B-General_Concept
that	O
had	O
n't	O
been	O
seen	O
since	O
Xi	B-General_Concept
ended	O
,	O
along	O
with	O
some	O
items	O
from	O
Xi	B-General_Concept
that	O
are	O
available	O
to	O
own	O
.	O
</s>
<s>
On	O
September	O
24	O
,	O
2010	O
,	O
Patrick	O
O'Luanaigh	O
,	O
the	O
CEO	O
of	O
nDreams	O
,	O
confirmed	O
on	O
his	O
Twitter	B-Application
that	O
the	O
Xi	B-General_Concept
Spaces	O
will	O
return	O
by	O
Christmas	O
2010	O
under	O
the	O
new	O
name	O
"	O
Xi	B-General_Concept
Museum	O
"	O
.	O
</s>
<s>
On	O
December	O
23	O
,	O
2010	O
,	O
the	O
"	O
Xi	B-General_Concept
Museum	O
"	O
launched	O
featuring	O
an	O
updated	O
Xi	B-General_Concept
Alumni	O
Hub	O
(	O
now	O
called	O
the	O
Xi	B-General_Concept
Museum	O
)	O
,	O
the	O
three	O
Alpha	O
Zone	O
1	O
spaces	O
(	O
Game	O
Test	O
Area	O
,	O
Maximum-Tilt	O
Lobby	O
,	O
and	O
Adventure	O
Lobby	O
)	O
,	O
and	O
the	O
four	O
Alpha	O
Zone	O
3	O
mazes	O
(	O
Teamwork	O
Maze	O
,	O
Ghost	O
Maze	O
,	O
Ridde	O
Maze	O
,	O
and	O
The	O
Expert	O
Maze	O
)	O
.	O
</s>
<s>
New	O
items	O
can	O
be	O
unlocked	O
from	O
the	O
Xi	B-General_Concept
Museum	O
and	O
Alpha	O
Zone	O
spaces	O
.	O
</s>
<s>
In	O
addition	O
,	O
the	O
Xi	B-General_Concept
Museum	O
features	O
a	O
Xi	B-General_Concept
Museum	O
Shop	O
,	O
with	O
items	O
such	O
as	O
a	O
Maximum-Tilt	O
bike	O
and	O
the	O
robot	O
Stapler	O
for	O
users	O
personal	O
spaces	O
.	O
</s>
<s>
The	O
public	O
space	O
"	O
Party	O
at	O
Jess	O
's	O
Apartment	O
"	O
that	O
was	O
featured	O
during	O
Xi	B-General_Concept
can	O
now	O
be	O
purchased	O
as	O
a	O
personal	O
space	O
for	O
the	O
users	O
.	O
</s>
<s>
In	O
Europe	O
,	O
users	O
had	O
a	O
chance	O
to	O
win	O
a	O
Stapler	O
companion	O
by	O
following	O
nDreams	O
Twitter	B-Application
feed	O
.	O
</s>
