<s>
Tyrian	B-Application
is	O
a	O
vertically	O
scrolling	O
shooter	O
developed	O
by	O
Eclipse	O
Software	O
for	O
MS-DOS	B-Application
and	O
published	O
in	O
1995	O
by	O
Epic	O
MegaGames	O
.	O
</s>
<s>
Tyrian	B-Application
was	O
programmed	O
by	O
Jason	O
Emery	O
,	O
illustrated	O
by	O
Daniel	O
Cook	O
,	O
and	O
its	O
music	O
composed	O
by	O
Alexander	O
Brandon	O
and	O
Andras	O
Molnar	O
.	O
</s>
<s>
The	O
game	O
was	O
re-released	O
as	O
freeware	B-License
in	O
2004	O
.	O
</s>
<s>
A	O
free	B-License
and	I-License
open-source	I-License
port	O
of	O
the	O
game	O
started	O
in	O
April	O
2007	O
.	O
</s>
<s>
While	O
on	O
the	O
planet	O
Tyrian	B-Application
,	O
a	O
hostile	O
drone	O
shoots	O
his	O
best	O
friend	O
,	O
Buce	O
Quesillac	O
.	O
</s>
<s>
MicroSol	O
has	O
discovered	O
Gravitium	O
(	O
the	O
game	O
's	O
brand	O
of	O
Unobtainium	O
)	O
on	O
Tyrian	B-Application
and	O
seeks	O
to	O
keep	O
it	O
a	O
secret	O
.	O
</s>
<s>
Now	O
on	O
MicroSol	O
's	O
hit	O
list	O
,	O
Trent	O
manages	O
to	O
secure	O
a	O
small	O
,	O
armed	O
spacecraft	O
and	O
set	O
out	O
to	O
the	O
free	B-License
world	O
of	O
Savara	O
.	O
</s>
<s>
Tyrian	B-Application
is	O
an	O
arcade-style	O
vertical	O
scrolling	O
shooter	O
.	O
</s>
<s>
It	O
was	O
developed	O
chiefly	O
as	O
a	O
homage	O
to	O
the	O
works	O
of	O
Compile	O
,	O
particularly	O
their	O
Zanac	B-Device
series	O
.	O
</s>
<s>
Tyrian	B-Application
's	O
full	O
game	O
mode	O
features	O
a	O
credit	O
and	O
equipment-buying	O
system	O
,	O
and	O
the	O
shield/armor	O
hit	O
points	O
which	O
are	O
similar	O
to	O
game	O
mechanics	O
in	O
Raptor	B-Application
:	I-Application
Call	I-Application
of	I-Application
the	I-Application
Shadows	I-Application
,	O
another	O
PC	O
game	O
from	O
the	O
same	O
period	O
.	O
</s>
<s>
The	O
player	O
can	O
also	O
purchase	O
up	O
to	O
two	O
"	O
sidekicks	B-Application
"	O
which	O
fly	O
alongside	O
the	O
ship	O
.	O
</s>
<s>
Sidekicks	B-Application
may	O
not	O
be	O
upgradable	O
.	O
</s>
<s>
In	O
arcade	O
mode	O
,	O
the	O
player	O
starts	O
with	O
a	O
moderate	O
ship	O
and	O
picks	O
up	O
the	O
front	O
guns	O
,	O
rear	O
guns	O
,	O
and	O
sidekicks	B-Application
along	O
the	O
way	O
,	O
instead	O
of	O
purchasing	O
them	O
.	O
</s>
<s>
Tyrian	B-Application
enables	O
the	O
two	O
players	O
to	O
be	O
connected	O
via	O
modem	O
.	O
</s>
<s>
The	O
Dragonwing	O
also	O
controls	O
the	O
sidekick	B-Application
weapons	O
.	O
</s>
<s>
In	O
this	O
mode	O
,	O
available	O
in	O
Tyrian	B-Application
2000	I-Application
only	O
,	O
the	O
player	O
chooses	O
from	O
three	O
levels	O
to	O
play	O
in	O
(	O
Deliani	O
,	O
Space	O
station	O
,	O
and	O
Savara	O
)	O
.	O
</s>
<s>
The	O
game	O
also	O
features	O
7	O
(	O
9	O
in	O
Tyrian	B-Application
2000	I-Application
)	O
hidden	O
"	O
super	O
arcade	O
"	O
modes	O
with	O
specialized	O
ships	O
,	O
requiring	O
the	O
user	O
to	O
type	O
in	O
certain	O
codewords	O
which	O
are	O
shown	O
after	O
beating	O
the	O
game	O
.	O
</s>
<s>
The	O
"	O
headlight	O
effect	O
"	O
is	O
always	O
turned	O
on	O
in	O
Super	O
Tyrian	B-Application
,	O
which	O
can	O
obscure	O
objects	O
that	O
are	O
not	O
within	O
a	O
90-degree	O
field	O
of	O
view	O
in	O
front	O
of	O
the	O
player	O
's	O
ship	O
.	O
</s>
<s>
Destruct	O
is	O
a	O
minigame	O
concealed	O
inside	O
Tyrian	B-Application
,	O
reminiscent	O
of	O
Scorched	B-Application
Earth	I-Application
,	O
with	O
human-vs-human	O
and	O
human-vs-computer	O
modes	O
of	O
play	O
.	O
</s>
<s>
Zinglon	O
's	O
Squadrons	O
is	O
a	O
mini-game	O
similar	O
to	O
Galaxian	B-Application
or	O
Galaga	B-Application
.	O
</s>
<s>
Tyrian	B-Application
was	O
developed	O
by	O
a	O
credited	O
total	O
of	O
11	O
people	O
,	O
with	O
"	O
three	O
main	O
drivers	O
"	O
—	O
Alexander	O
Brandon	O
(	O
composer	O
and	O
writer	O
)	O
,	O
Jason	O
Emery	O
(	O
programmer	O
and	O
level	O
designer	O
)	O
,	O
and	O
Daniel	O
Cook	O
(	O
artist	O
and	O
interface	O
designer	O
)	O
.	O
</s>
<s>
For	O
the	O
aforementioned	O
developers	O
,	O
Tyrian	B-Application
was	O
their	O
first	O
commercial	O
video	O
game	O
.	O
</s>
<s>
The	O
origins	O
of	O
Tyrian	B-Application
began	O
as	O
an	O
experiment	O
in	O
1991	O
,	O
with	O
a	O
young	O
Jason	O
Emery	O
showing	O
his	O
friend	O
Alexander	O
Brandon	O
the	O
preliminary	O
workings	O
of	O
a	O
scrolling	O
background	O
.	O
</s>
<s>
Brandon	O
wrote	O
a	O
proposal	O
document	O
and	O
sent	O
it	O
to	O
the	O
two	O
leading	O
shareware	B-License
game	O
publishers	O
of	O
the	O
time	O
,	O
Epic	O
MegaGames	O
and	O
Apogee	O
.	O
</s>
<s>
However	O
,	O
after	O
a	O
long	O
wait	O
,	O
Robert	O
Allen	O
—	O
head	O
of	O
Safari	O
Software	O
—	O
considered	O
Tyrian	B-Application
to	O
fit	O
perfectly	O
with	O
their	O
company	O
,	O
which	O
handled	O
smaller	O
scale	O
projects	O
.	O
</s>
<s>
Robert	O
Allen	O
had	O
word	O
from	O
Cliff	O
Bleszinski	O
that	O
Tyrian	B-Application
was	O
very	O
similar	O
to	O
Zanac	B-Device
,	O
thinking	O
that	O
it	O
should	O
be	O
followed	O
up	O
.	O
</s>
<s>
After	O
he	O
was	O
sent	O
a	O
short	O
list	O
of	O
levels	O
,	O
Cook	O
created	O
sample	O
artwork	O
on	O
an	O
Amiga	B-Application
1200	I-Application
.	O
</s>
<s>
After	O
work	O
began	O
on	O
graphics	O
,	O
the	O
popularity	O
of	O
Tyrian	B-Application
rose	O
at	O
Epic	O
MegaGames	O
.	O
</s>
<s>
At	O
this	O
point	O
,	O
Tyrian	B-Application
was	O
almost	O
complete	O
;	O
with	O
the	O
"	O
Loudness	O
"	O
sound	O
system	O
,	O
near-completed	O
sound	O
effects	O
,	O
and	O
a	O
marketing	O
plan	O
head	O
by	O
Mark	O
Rein	O
.	O
</s>
<s>
At	O
this	O
time	O
,	O
Tim	O
Sweeney	O
approached	O
the	O
team	O
and	O
informed	O
them	O
Tyrian	B-Application
was	O
to	O
be	O
published	O
as	O
a	O
full-fledged	O
Epic	O
MegaGames	O
product	O
.	O
</s>
<s>
The	O
data	O
cubes	O
found	O
in	O
the	O
game	O
's	O
Full	O
Mode	O
contain	O
various	O
references	O
to	O
its	O
parent	O
publishers	O
,	O
including	O
One	B-Application
Must	I-Application
Fall	I-Application
2097	I-Application
,	O
Jazz	B-Application
Jackrabbit	I-Application
,	O
and	O
Pretzel	O
Pete	O
(	O
Tyrian	B-Application
2000	I-Application
)	O
.	O
</s>
<s>
Version	O
1.0	O
of	O
the	O
game	O
was	O
originally	O
released	O
as	O
shareware	B-License
,	O
consisting	O
of	O
episode	O
1	O
of	O
the	O
game	O
.	O
</s>
<s>
In	O
1999	O
,	O
Tyrian	B-Application
was	O
re-released	O
as	O
Tyrian	B-Application
2000	I-Application
,	O
which	O
includes	O
an	O
additional	O
fifth	O
episode	O
and	O
bug	O
fixes	O
.	O
</s>
<s>
Although	O
it	O
claims	O
Windows	B-Application
compatibility	O
,	O
this	O
is	O
achieved	O
using	O
a	O
.PIF	O
file	O
,	O
not	O
by	O
building	O
a	O
native	O
Windows	B-Application
application	O
.	O
</s>
<s>
World	O
Tree	O
Games	O
developed	O
versions	O
for	O
the	O
Game	B-Device
Boy	I-Device
Color	I-Device
and	O
Game	B-Device
Boy	I-Device
Advance	I-Device
.	O
</s>
<s>
Both	O
Game	B-Device
Boy	I-Device
versions	O
were	O
eventually	O
released	O
in	O
compiled	O
format	O
in	O
2007	O
as	O
freeware	B-License
by	O
World	O
Tree	O
Games	O
.	O
</s>
<s>
In	O
the	O
Game	B-Device
Boy	I-Device
Color	I-Device
version	O
,	O
the	O
Full	O
Game	O
incorporates	O
a	O
shorter	O
story	O
(	O
from	O
Episodes	O
1-4	O
)	O
than	O
the	O
original	O
DOS	B-Device
game	O
,	O
but	O
planet	O
Ixmucane	O
core	O
always	O
gets	O
destroyed	O
at	O
the	O
end	O
,	O
and	O
the	O
levels	O
were	O
redesigned	O
.	O
</s>
<s>
The	O
rear	O
weapon	O
from	O
the	O
DOS	B-Device
game	O
is	O
not	O
available	O
.	O
</s>
<s>
The	O
player	O
can	O
carry	O
two	O
Sidekick	B-Application
weapons	O
at	O
once	O
,	O
but	O
only	O
one	O
is	O
usable	O
at	O
a	O
time	O
.	O
</s>
<s>
The	O
Game	B-Device
Boy	I-Device
Advance	I-Device
version	O
incorporates	O
graphics	O
from	O
the	O
DOS	B-Device
game	O
,	O
but	O
the	O
level	O
layout	O
and	O
game	O
play	O
are	O
based	O
on	O
the	O
Game	B-Device
Boy	I-Device
Color	I-Device
game	O
.	O
</s>
<s>
Two	O
Sidekick	B-Application
weapons	O
can	O
be	O
fired	O
at	O
the	O
same	O
time	O
.	O
</s>
<s>
In	O
February	O
2007	O
the	O
Pascal	B-Application
(	O
and	O
x86	B-Operating_System
assembly	B-Language
)	O
source	O
code	O
for	O
Tyrian	B-Application
was	O
delegated	O
to	O
a	O
small	O
group	O
of	O
developers	O
to	O
re-write	O
it	O
in	O
C	B-Language
,	O
in	O
a	O
project	O
named	O
OpenTyrian	O
,	O
licensed	O
under	O
the	O
GNU	B-License
GPL-2.0-or-later	I-License
.	O
</s>
<s>
Jason	O
Emery	O
released	O
Tyrian	B-Application
in	O
2007	O
,	O
along	O
with	O
some	O
Game	B-Device
Boy	I-Device
and	O
Game	B-Device
Boy	I-Device
Advance	I-Device
versions	O
.	O
</s>
<s>
Following	O
that	O
announcement	O
,	O
in	O
April	O
2007	O
Daniel	O
Cook	O
announced	O
the	O
free	B-License
availability	O
of	O
his	O
Tyrian	B-Application
artwork	O
(	O
not	O
including	O
the	O
later	O
work	O
for	O
the	O
Game	B-Device
Boy	I-Device
Color	I-Device
edition	O
and	O
for	O
Tyrian	B-Application
2000	I-Application
)	O
under	O
generic	O
liberal	O
terms	O
of	O
the	O
open	O
content	O
Creative	O
Commons	O
Attribution	O
3.0	O
License	O
.	O
</s>
<s>
OpenTyrian	O
was	O
originally	O
stored	O
on	O
the	O
BitBucket	B-Protocol
repository	B-General_Concept
before	O
moving	O
on	O
to	O
GitHub	B-Application
.	O
</s>
<s>
The	O
music	O
of	O
Tyrian	B-Application
was	O
created	O
by	O
Alexander	O
Brandon	O
with	O
additional	O
music	O
by	O
Andras	O
Molnar	O
,	O
and	O
is	O
in	O
the	O
LDS	O
(	O
Loudness	O
Sound	O
System	O
)	O
format	O
.	O
</s>
<s>
The	O
Tyrian	B-Application
2000	I-Application
CD	O
includes	O
25	O
of	O
the	O
tracks	O
in	O
red	O
book	O
audio	O
format	O
.	O
</s>
<s>
The	O
red	O
book	O
tracks	O
are	O
omitted	O
from	O
the	O
freeware	B-License
version	O
due	O
to	O
the	O
download	O
size	O
.	O
</s>
<s>
The	O
tracks	O
"	O
ZANAC3	O
"	O
and	O
"	O
ZANAC5	O
"	O
are	O
reproductions	O
of	O
two	O
songs	O
from	O
the	O
MSX/NES	O
game	O
Zanac	B-Device
.	O
</s>
<s>
Alexander	O
Brandon	O
released	O
the	O
music	O
of	O
Tyrian	B-Application
for	O
free	B-License
in	O
August	O
2010	O
.	O
</s>
<s>
Tyrian	B-Application
scored	O
87%	O
in	O
PC	O
Gamer	O
(	O
one	O
percent	O
below	O
their	O
Editor	O
's	O
Choice	O
award	O
)	O
.	O
</s>
<s>
Computer	O
Gaming	O
World	O
nominated	O
Tyrian	B-Application
as	O
"	O
Action	O
Game	O
of	O
the	O
Year	O
"	O
.	O
</s>
<s>
The	O
original	O
developers	O
Jason	O
Emery	O
and	O
Alexander	O
Brandon	O
considered	O
Tyrian	B-Application
's	O
reception	O
"	O
far	O
more	O
"	O
than	O
their	O
expectations	O
.	O
</s>
