<s>
Excalibur	B-Application
:	I-Application
Morgana	I-Application
's	I-Application
Revenge	I-Application
is	O
a	O
first-person	O
shooter	O
video	O
game	O
developed	O
by	O
ExcaliburWorld	O
Software	O
.	O
</s>
<s>
The	O
game	O
's	O
development	O
has	O
been	O
closely	O
tied	O
to	O
the	O
Marathon	B-Application
and	O
later	O
Aleph	O
One	O
engines	O
,	O
on	O
which	O
it	O
is	O
based	O
.	O
</s>
<s>
Most	O
recently	O
,	O
the	O
game	O
was	O
expanded	O
and	O
re-released	O
in	O
2007	O
for	O
OS	B-Operating_System
X	I-Operating_System
,	O
Microsoft	B-Application
Windows	I-Application
,	O
and	O
Linux	B-Application
using	O
the	O
open-source	B-Application
Aleph	O
One	O
engine	O
.	O
</s>
<s>
The	O
game	O
's	O
story	O
expands	O
on	O
the	O
legend	O
of	O
King	B-Application
Arthur	I-Application
and	O
involves	O
the	O
Sword	O
of	O
Power	O
,	O
Excalibur	B-Application
;	O
the	O
wizard	O
Merlin	B-Device
;	O
the	O
sorceress	O
Morgana	O
;	O
and	O
the	O
future	O
United	O
Earth	O
Federation	O
(	O
UEF	O
)	O
.	O
</s>
<s>
According	O
to	O
the	O
game	O
,	O
Morgana	O
uses	O
the	O
Charm	O
of	O
Making	O
to	O
imprison	O
Merlin	B-Device
in	O
ice	O
during	O
the	O
fall	O
of	O
Arthur	O
's	O
kingdom	O
.	O
</s>
<s>
Merlin	B-Device
then	O
disappears	O
from	O
Camelot	B-Application
in	O
an	O
electrical	O
storm	O
during	O
the	O
battle	O
for	O
Camelot	B-Application
.	O
</s>
<s>
The	O
electrical	O
storm	O
represents	O
a	O
break	O
in	O
the	O
space-time	O
continuum	O
,	O
and	O
Merlin	B-Device
is	O
hurled	O
into	O
the	O
future	O
.	O
</s>
<s>
At	O
first	O
introduced	O
to	O
the	O
Federation	O
as	O
an	O
unusual	O
artificial	O
intelligence	O
of	O
unknown	O
origins	O
,	O
Merlin	B-Device
becomes	O
part	O
of	O
the	O
UEF	O
computer	O
system	O
on	O
the	O
Starship	O
Kronos	O
.	O
</s>
<s>
Merlin	B-Device
helps	O
the	O
Federation	O
Marines	O
in	O
the	O
space	O
pirate	O
raids	O
of	O
2289	O
.	O
</s>
<s>
Following	O
this	O
battle	O
,	O
the	O
Marine	O
takes	O
rest	O
on	O
the	O
Starship	O
Kronos	O
,	O
where	O
he	O
learns	O
the	O
secret	O
of	O
Merlin	B-Device
.	O
</s>
<s>
Merlin	B-Device
explains	O
that	O
Morgana	O
is	O
behind	O
the	O
pirate	O
raids	O
,	O
and	O
has	O
learned	O
how	O
to	O
travel	O
through	O
time	O
.	O
</s>
<s>
During	O
his	O
quest	O
the	O
Marine	O
searches	O
for	O
Actinium	O
crystals	O
in	O
the	O
untamed	O
,	O
raptor-infested	O
jungles	O
of	O
the	O
Jurassic	O
,	O
frees	O
Quest	O
Knights	O
and	O
hunts	O
down	O
Mordred	O
in	O
the	O
castle	O
arenas	O
of	O
Camelot	B-Application
,	O
and	O
has	O
a	O
final	O
showdown	O
with	O
Morgana	O
and	O
her	O
evil	O
minions	O
in	O
the	O
war-torn	O
streets	O
of	O
the	O
future	O
.	O
</s>
<s>
The	O
game	O
borrows	O
story	O
elements	O
from	O
the	O
1981	O
John	O
Boorman	O
film	O
Excalibur	B-Application
,	O
including	O
Merlin	B-Device
's	O
Charm	O
of	O
Making	O
.	O
</s>
<s>
In	O
EMR	O
,	O
the	O
Charm	O
of	O
Making	O
is	O
a	O
special	O
incantation	O
spell	O
which	O
Morgana	O
stole	O
from	O
Merlin	B-Device
.	O
</s>
<s>
Morgana	O
uses	O
the	O
spell	O
to	O
freeze	O
Merlin	B-Device
during	O
the	O
Arthurian	O
period	O
,	O
and	O
to	O
control	O
many	O
of	O
her	O
forces	O
during	O
the	O
Camelot	B-Application
,	O
Jurassic	O
,	O
and	O
Future	O
time	O
periods	O
.	O
</s>
<s>
In	O
1994	O
,	O
Bungie	O
released	O
Marathon	B-Application
.	O
</s>
<s>
The	O
game	O
's	O
dark	O
corridors	O
,	O
eerie	O
background	O
music	O
,	O
stairs	O
&	O
platforms	O
,	O
strange	O
aliens	O
,	O
and	O
story	O
told	O
through	O
terminal	O
interfaces	O
created	O
a	O
unique	O
experience	O
on	O
the	O
Mac	B-Device
.	O
</s>
<s>
The	O
introduction	O
of	O
,	O
a	O
Marathon	B-Application
map	O
editor	O
,	O
allowed	O
Marathon	B-Application
players	O
to	O
become	O
map	O
makers	O
.	O
</s>
<s>
Previously	O
,	O
MMMG	O
member	O
Greg	O
Ewing	O
had	O
written	O
,	O
a	O
program	O
for	O
creating	O
custom	O
levels	O
in	O
Wolfenstein	B-Application
3D	I-Application
for	O
the	O
Mac	B-Device
.	O
</s>
<s>
MMMG	O
member	O
Craig	O
Durkin	O
's	O
idea	O
of	O
a	O
group	O
project	O
eventually	O
led	O
to	O
Devil	O
in	O
a	O
Blue	O
Dress	O
,	O
a	O
Marathon	B-Application
scenario	O
which	O
was	O
a	O
collaborative	O
group	O
effort	O
,	O
spearheaded	O
by	O
Claude	O
Errera	O
.	O
</s>
<s>
This	O
project	O
began	O
in	O
November	O
1995	O
,	O
and	O
10	O
months	O
later	O
the	O
first	O
demo	O
for	O
Excalibur	B-Application
:	I-Application
Morgana	I-Application
's	I-Application
Revenge	I-Application
(	O
EMR	O
)	O
was	O
released	O
to	O
the	O
public	O
.	O
</s>
<s>
While	O
work	O
continued	O
on	O
EMR	O
,	O
Bungie	O
released	O
Marathon	B-Application
2	I-Application
:	I-Application
Durandal	I-Application
.	O
</s>
<s>
directed	O
the	O
porting	O
of	O
Devil	O
in	O
a	O
Blue	O
Dress	O
(	O
DiaBD	O
)	O
to	O
the	O
Marathon	B-Application
2	I-Application
engine	O
to	O
take	O
advantage	O
of	O
these	O
features	O
.	O
</s>
<s>
Meanwhile	O
,	O
Bill	B-Application
Catambay	I-Application
continued	O
with	O
the	O
EMR	O
project	O
using	O
the	O
original	O
Marathon	B-Application
engine	O
.	O
</s>
<s>
In	O
1996	O
Bungie	O
released	O
Marathon	B-Application
Infinity	I-Application
,	O
which	O
offered	O
new	O
features	O
and	O
capabilities	O
,	O
as	O
well	O
as	O
the	O
tools	O
Forge	O
and	O
Anvil	O
for	O
editing	O
maps	O
,	O
physics	O
,	O
shapes	O
and	O
sounds	O
.	O
</s>
<s>
Members	O
of	O
the	O
MMMG	O
imagined	O
what	O
EMR	O
could	O
become	O
with	O
the	O
new	O
features	O
,	O
and	O
less	O
than	O
a	O
month	O
later	O
Bill	B-Application
Catambay	I-Application
began	O
leading	O
work	O
on	O
porting	O
EMR	O
to	O
Infinity	O
.	O
</s>
<s>
Just	O
prior	O
to	O
its	O
acquisition	O
by	O
Microsoft	O
in	O
2000	O
,	O
Bungie	O
released	O
the	O
source	O
code	O
to	O
the	O
Marathon	B-Application
2	I-Application
engine	O
and	O
the	O
Marathon	B-Application
Open-source	B-Application
project	O
began	O
,	O
resulting	O
in	O
the	O
new	O
engine	O
called	O
Aleph	O
One	O
.	O
</s>
<s>
In	O
2004	O
,	O
Glen	O
Ditchfield	O
approached	O
Bill	B-Application
Catambay	I-Application
to	O
convince	O
him	O
that	O
Aleph	O
One	O
was	O
by	O
then	O
stable	O
enough	O
to	O
port	O
EMR	O
.	O
</s>
<s>
Aleph	O
One	O
developer	O
Loren	O
Petrich	O
wrote	O
initial	O
script	O
for	O
EMR	O
in	O
MML	O
,	O
the	O
Marathon	B-Application
Markup	O
Language	O
.	O
</s>
<s>
Catambay	O
estimated	O
the	O
port	O
to	O
be	O
another	O
3-year	O
project	O
,	O
in	O
order	O
to	O
take	O
advantage	O
of	O
new	O
features	O
in	O
Aleph	O
One	O
like	O
MML	O
and	O
Lua	B-Language
scripting	I-Language
support.EMR	O
3.0	O
Credits	O
In	O
autumn	O
of	O
2004	O
,	O
work	O
began	O
on	O
EMR	O
3.0	O
.	O
</s>
<s>
The	O
new	O
rendition	O
of	O
EMR	O
featured	O
high	O
resolution	O
textures	O
,	O
16-bit	O
sound	O
,	O
revamped	O
and	O
new	O
music	O
,	O
edited	O
and	O
expanded	O
maps	O
,	O
and	O
MML	O
&	O
lua	B-Language
scripting	I-Language
.	O
</s>
<s>
For	O
the	O
first	O
time	O
,	O
EMR''	O
3.0	O
required	O
no	O
installer	O
,	O
and	O
due	O
to	O
Aleph	O
One	O
's	O
cross-platform	B-Operating_System
compatibility	O
was	O
playable	O
on	O
Windows	O
,	O
Linux	B-Application
,	O
and	O
Macs	O
with	O
PPC	O
and	O
Intel	B-Device
processors	I-Device
.	O
</s>
<s>
In	O
2015	O
the	O
game	O
was	O
ported	O
to	O
the	O
OpenPandora	B-Device
,	O
an	O
ARM	B-Architecture
processor	I-Architecture
based	O
handheld	B-Application
.	O
</s>
<s>
Most	O
of	O
the	O
music	O
in	O
EMR	O
is	O
original	O
music	O
,	O
the	O
bulk	O
of	O
which	O
is	O
compiled	O
by	O
James	O
Bisset	O
,	O
with	O
some	O
original	O
pieces	O
by	O
Bill	B-Application
Catambay	I-Application
and	O
Dane	O
Smith	O
.	O
</s>
<s>
The	O
soundtrack	O
to	O
EMR	O
3.0	O
can	O
be	O
found	O
on	O
iTunes	B-Operating_System
,	O
Amazon.com,	O
Google	B-Application
Play	I-Application
,	O
and	O
Game	O
OST	O
.	O
</s>
<s>
While	O
not	O
all	O
game	O
reviews	O
are	O
still	O
available	O
,	O
a	O
review	O
by	O
Chris	O
Barylick	O
can	O
still	O
be	O
found	O
on	O
the	O
Mac	B-Device
Observer	O
website	O
.	O
</s>
<s>
The	O
game	O
was	O
downloaded	O
alone	O
via	O
SourceForge	B-Application
220,000	O
times	O
.	O
</s>
