<s>
Tribes	B-Application
is	O
a	O
series	O
of	O
five	O
science	O
fiction	O
first-person	O
shooter	O
video	O
games	O
released	O
between	O
1998	O
and	O
2012	O
.	O
</s>
<s>
The	O
series	O
includes	O
Starsiege	B-Application
:	I-Application
Tribes	I-Application
,	O
Tribes	B-Operating_System
2	I-Operating_System
,	O
Tribes	B-Device
:	I-Device
Aerial	I-Device
Assault	I-Device
,	O
Tribes	B-Application
:	I-Application
Vengeance	I-Application
,	O
and	O
Tribes	B-Device
:	I-Device
Ascend	I-Device
.	O
</s>
<s>
Tribes	B-Application
is	O
a	O
spin-off	O
series	O
from	O
the	O
mecha	O
simulation	O
series	O
Metaltech	B-Application
.	O
</s>
<s>
The	O
Tribes	B-Application
series	O
begins	O
in	O
2471	O
,	O
when	O
scientist	O
Solomon	O
Petresun	O
invents	O
the	O
first	O
cybrid	O
,	O
a	O
bio-cybernetic	O
hybrid	O
artificial	B-Application
intelligence	I-Application
named	O
Prometheus	O
.	O
</s>
<s>
In	O
Starsiege	B-Application
,	O
the	O
Terran	O
resistance	O
manages	O
to	O
drive	O
Prometheus	O
 '	O
forces	O
out	O
of	O
Earth	O
and	O
onto	O
the	O
Moon	O
where	O
they	O
are	O
believed	O
to	O
be	O
eliminated	O
by	O
General	O
Ambrose	O
Gierling	O
and	O
his	O
squad	O
's	O
suicide	O
attack	O
.	O
</s>
<s>
The	O
chronologically	O
first	O
game	O
in	O
the	O
Tribes	B-Application
series	O
is	O
Tribes	B-Application
:	I-Application
Vengeance	I-Application
which	O
was	O
released	O
in	O
2004	O
.	O
</s>
<s>
Their	O
insubordination	O
has	O
made	O
the	O
Empire	O
dispatch	O
a	O
great	O
force	O
of	O
elite	O
Imperial	O
Knights	O
,	O
the	O
Blood	O
Eagles	O
,	O
against	O
them	O
,	O
however	O
,	O
by	O
the	O
time	O
of	O
Tribes	B-Application
:	I-Application
Vengeance	I-Application
,	O
the	O
Eagles	O
have	O
fully	O
embraced	O
the	O
Tribal	O
way	O
of	O
life	O
,	O
considering	O
themselves	O
Tribesmen	O
despite	O
still	O
having	O
ties	O
to	O
the	O
Empire	O
.	O
</s>
<s>
The	O
next	O
(	O
chronologically	O
)	O
game	O
in	O
the	O
series	O
,	O
Starsiege	B-Application
:	I-Application
Tribes	I-Application
,	O
1998	O
,	O
sees	O
the	O
conflict	O
between	O
the	O
Blood	O
Eagles	O
,	O
the	O
Children	O
of	O
Phoenix	O
,	O
and	O
other	O
tribes	B-Application
formed	O
by	O
the	O
renegades	O
of	O
these	O
two	O
(	O
such	O
as	O
the	O
Star	O
Wolf	O
and	O
the	O
Diamond	O
Sword	O
)	O
escalating	O
into	O
countless	O
blood	O
feuds	O
before	O
finally	O
culminating	O
in	O
the	O
devastating	O
Tribal	O
Wars	O
about	O
3940	O
.	O
</s>
<s>
The	O
sequel	O
,	O
entitled	O
Tribes	B-Operating_System
2	I-Operating_System
,	O
2001	O
,	O
deals	O
with	O
the	O
insurgent	O
uprising	O
of	O
BioDerms	O
,	O
a	O
new	O
race	O
of	O
warriors/workers	O
created	O
by	O
the	O
Empire	O
to	O
replace	O
the	O
cybrids	O
,	O
and	O
their	O
assault	O
on	O
the	O
Wilderzone	O
,	O
the	O
space	O
frontier	O
where	O
the	O
Tribes	B-Application
mostly	O
reside	O
.	O
</s>
<s>
Tribes	B-Device
:	I-Device
Aerial	I-Device
Assault	I-Device
,	O
2002	O
,	O
does	O
not	O
significantly	O
contribute	O
to	O
the	O
plot	O
of	O
the	O
series	O
.	O
</s>
<s>
Starsiege	B-Application
:	I-Application
Tribes	I-Application
was	O
released	O
in	O
December	O
1998	O
.	O
</s>
<s>
A	O
single	O
player	O
version	O
called	O
Tribes	B-Application
Extreme	O
began	O
development	O
shortly	O
after	O
the	O
release	O
of	O
Starsiege	B-Application
:	I-Application
Tribes	I-Application
,	O
but	O
was	O
abandoned	O
before	O
completion	O
.	O
</s>
<s>
Tribes	B-Operating_System
2	I-Operating_System
added	O
additional	O
vehicles	O
(	O
such	O
as	O
a	O
two-person	O
tank	O
and	O
a	O
three-person	O
bomber	O
with	O
a	O
belly	O
turret	O
)	O
,	O
weapons	O
,	O
and	O
items	O
.	O
</s>
<s>
Tribes	B-Operating_System
2	I-Operating_System
also	O
included	O
many	O
features	O
to	O
help	O
its	O
community	O
of	O
players	O
:	O
it	O
included	O
user	O
profiles	O
,	O
interactive	O
chat	O
areas	O
,	O
and	O
message	O
boards	O
.	O
</s>
<s>
The	O
initial	O
release	O
of	O
Tribes	B-Operating_System
2	I-Operating_System
was	O
plagued	O
by	O
bugs	O
and	O
slow	O
performance	O
on	O
release	O
.	O
</s>
<s>
Tribes	B-Application
:	O
Fast	O
Attack	O
was	O
cancelled	O
in	O
2002	O
.	O
</s>
<s>
Tribes	B-Device
:	I-Device
Aerial	I-Device
Assault	I-Device
was	O
a	O
PlayStation	B-Device
2	I-Device
version	O
of	O
Tribes	B-Operating_System
2	I-Operating_System
.	O
</s>
<s>
Tribes	B-Application
:	I-Application
Vengeance	I-Application
is	O
a	O
prequel	B-Application
to	O
the	O
other	O
games	O
,	O
was	O
released	O
in	O
October	O
2004	O
.	O
</s>
<s>
It	O
was	O
developed	O
by	O
Irrational	O
Games	O
using	O
a	O
heavily	O
modified	O
Unreal	B-Operating_System
Engine	I-Operating_System
to	O
bring	O
the	O
game	O
's	O
appearance	O
up	O
to	O
par	O
with	O
other	O
modern	O
first-person	O
shooters	O
.	O
</s>
<s>
This	O
new	O
Tribes	B-Application
largely	O
de-emphasized	O
the	O
focus	O
on	O
massive	O
maps	O
and	O
slower	O
gameplay	O
that	O
was	O
typical	O
of	O
Tribes	B-Operating_System
2	I-Operating_System
in	O
favor	O
of	O
the	O
swifter	O
action	O
of	O
the	O
original	O
,	O
battles	O
were	O
faster-paced	O
,	O
and	O
teamwork	O
and	O
vehicles	O
were	O
less	O
necessary	O
.	O
</s>
<s>
Tribes	B-Application
:	I-Application
Vengeance	I-Application
was	O
released	O
with	O
almost	O
no	O
marketing	O
support	O
shortly	O
after	O
the	O
release	O
of	O
Doom	B-Application
3	I-Application
and	O
Far	B-Application
Cry	I-Application
and	O
just	O
before	O
the	O
releases	O
of	O
Half-Life	B-Application
2	I-Application
and	O
Halo	B-Application
2	I-Application
.	O
</s>
<s>
In	O
March	O
2005	O
,	O
all	O
support	O
for	O
Tribes	B-Application
:	I-Application
Vengeance	I-Application
was	O
dropped	O
,	O
including	O
a	O
planned	O
patch	O
that	O
would	O
have	O
addressed	O
several	O
bugs	O
and	O
added	O
PunkBuster	B-Application
support	O
.	O
</s>
<s>
InstantAction	O
announced	O
PlayTribes	O
,	O
a	O
planned	O
browser-based	O
version	O
of	O
Starsiege	B-Application
:	I-Application
Tribes	I-Application
,	O
in	O
March	O
2009	O
along	O
with	O
their	O
acquisition	O
of	O
the	O
Tribes	B-Application
intellectual	O
property	O
.	O
</s>
<s>
The	O
game	O
was	O
shown	O
publicly	O
in	O
September	O
2009	O
at	O
PAX	O
in	O
a	O
relatively	O
playable	O
state	O
,	O
but	O
was	O
eventually	O
canceled	O
after	O
InstantAction	O
sold	O
the	O
Tribes	B-Application
IP	O
to	O
Hi-Rez	O
Studios	O
in	O
October	O
2010	O
.	O
</s>
<s>
In	O
February	O
2006	O
,	O
GarageGames	O
"	O
leaked	O
"	O
short	O
videos	O
of	O
a	O
tech	O
demo	O
which	O
featured	O
"	O
tribes	B-Application
like	O
"	O
game	O
play	O
on	O
their	O
Torque	O
Shader	O
Engine	O
.	O
</s>
<s>
The	O
demo	O
made	O
its	O
debut	O
at	O
the	O
2006	O
GDC	O
as	O
"	O
Legions	O
"	O
,	O
an	O
allusion	O
to	O
the	O
Tribes	B-Application
series	O
for	O
which	O
the	O
team	O
is	O
famous	O
for	O
.	O
</s>
<s>
Announced	O
officially	O
in	O
2007	O
as	O
a	O
"	O
spiritual	O
successor	O
"	O
to	O
Tribes	B-Application
,	O
Fallen	O
Empire	O
:	O
Legions	O
was	O
marketed	O
to	O
the	O
public	O
in	O
June	O
2008	O
on	O
InstantAction	O
,	O
with	O
development	O
being	O
handed	O
over	O
to	O
the	O
community	O
after	O
InstantAction	O
was	O
shut	O
down	O
in	O
November	O
2010	O
.	O
</s>
<s>
On	O
October	O
23	O
,	O
2010	O
,	O
Hi-Rez	O
Studios	O
announced	O
that	O
they	O
had	O
bought	O
the	O
Tribes	B-Application
IP	O
from	O
InstantAction	O
.	O
</s>
<s>
Hi-Rez	O
Studios	O
released	O
Tribes	B-Device
:	I-Device
Ascend	I-Device
,	O
a	O
multiplayer-only	O
successor	O
to	O
Tribes	B-Operating_System
2	I-Operating_System
for	O
the	O
PC	O
on	O
April	O
12	O
,	O
2012	O
.	O
</s>
<s>
Tribes	B-Application
Universe	O
was	O
a	O
massively	B-Application
multiplayer	I-Application
online	I-Application
shooter	O
developed	O
by	O
Hi-Rez	O
Studios	O
.	O
</s>
<s>
The	O
game	O
,	O
along	O
with	O
Hi-Rez	O
Studios	O
 '	O
Tribes	B-Application
IP	O
acquisition	O
from	O
InstantAction	O
,	O
was	O
first	O
announced	O
on	O
October	O
23	O
,	O
2010	O
.	O
</s>
<s>
While	O
alpha	O
testing	O
was	O
said	O
to	O
begin	O
at	O
the	O
start	O
of	O
2011	O
,	O
development	O
on	O
Tribes	B-Application
Universe	O
was	O
canceled	O
when	O
Hi-Rez	O
Studios	O
decided	O
to	O
start	O
working	O
on	O
Tribes	B-Device
:	I-Device
Ascend	I-Device
.	O
</s>
<s>
Hi-Rez	O
has	O
been	O
criticized	O
by	O
gaming	O
communities	O
for	O
their	O
handling	O
of	O
Tribes	B-Device
:	I-Device
Ascend	I-Device
and	O
Global	O
Agenda	O
.	O
</s>
<s>
Hi-Rez	O
Studios	O
did	O
eventually	O
come	O
back	O
to	O
Tribes	B-Device
:	I-Device
Ascend	I-Device
in	O
late	O
2015	O
and	O
released	O
several	O
patches	O
.	O
</s>
<s>
The	O
final	O
patch	O
for	O
Tribes	B-Device
:	I-Device
Ascend	I-Device
was	O
released	O
in	O
September	O
2016	O
.	O
</s>
<s>
In	O
2015	O
Hi-Rez	O
announced	O
that	O
in	O
celebration	O
of	O
the	O
Tribes	B-Application
franchise	O
21st	O
anniversary	O
,	O
all	O
games	O
in	O
the	O
franchise	O
(	O
starting	O
with	O
1994	O
's	O
Metaltech	B-Application
:	I-Application
Earthsiege	I-Application
)	O
would	O
be	O
free	O
to	O
download	O
on	O
the	O
Tribes	B-Application
Universe	O
webpage	O
.	O
</s>
