<s>
Tux	B-Application
Racer	I-Application
is	O
a	O
2000	O
open-source	B-Application
winter	O
sports	O
racing	O
video	O
game	O
starring	O
the	O
Linux	B-Application
mascot	I-Application
,	O
Tux	B-Application
the	I-Application
penguin	I-Application
.	O
</s>
<s>
Later	O
on	O
,	O
Patry	O
and	O
the	O
newly	O
founded	O
Sunspire	B-Application
Studios	I-Application
,	O
composed	O
of	O
several	O
former	O
students	O
of	O
the	O
university	O
,	O
expanded	O
it	O
.	O
</s>
<s>
In	O
the	O
game	O
,	O
the	O
player	O
controls	O
Tux	B-Application
as	O
he	O
slides	O
down	O
a	O
course	O
of	O
snow	O
and	O
ice	O
collecting	O
herring	O
.	O
</s>
<s>
Tux	B-Application
Racer	I-Application
was	O
officially	O
downloaded	O
over	O
one	O
million	O
times	O
as	O
of	O
2001	O
.	O
</s>
<s>
It	O
also	O
was	O
well	O
received	O
,	O
often	O
being	O
acclaimed	O
for	O
the	O
graphics	O
,	O
fast-paced	O
gameplay	O
,	O
and	O
replayability	O
,	O
and	O
was	O
a	O
fan	O
favorite	O
among	O
Linux	B-Application
users	O
and	O
the	O
free	O
software	O
community	O
.	O
</s>
<s>
The	O
game	O
's	O
popularity	O
secured	O
the	O
development	O
of	O
a	O
commercialized	O
release	O
that	O
included	O
enhanced	O
graphics	O
and	O
multiplayer	O
,	O
and	O
it	O
also	O
became	O
the	O
first	O
GPL-licensed	O
game	O
to	O
receive	O
an	O
arcade	O
adaptation	O
.	O
</s>
<s>
It	O
is	O
the	O
only	O
product	O
that	O
Sunspire	B-Application
Studios	I-Application
developed	O
and	O
released	O
,	O
after	O
which	O
the	O
company	O
liquidated	O
.	O
</s>
<s>
Tux	B-Application
Racer	I-Application
is	O
a	O
racing	O
game	O
in	O
which	O
the	O
player	O
must	O
control	O
Tux	B-Application
across	O
a	O
mountainside	O
.	O
</s>
<s>
Tux	B-Application
can	O
turn	O
left	O
,	O
right	O
,	O
brake	O
,	O
jump	O
,	O
and	O
paddle	O
,	O
and	O
flap	O
his	O
wings	O
.	O
</s>
<s>
If	O
the	O
player	O
presses	O
the	O
brakes	O
and	O
turn	O
buttons	O
,	O
Tux	B-Application
will	O
perform	O
a	O
tight	O
turn	O
.	O
</s>
<s>
Pressing	O
the	O
paddling	O
buttons	O
on	O
the	O
ground	O
gives	O
Tux	B-Application
some	O
additional	O
speed	O
.	O
</s>
<s>
The	O
paddling	O
stops	O
giving	O
speed	O
and	O
in	O
turn	O
slows	O
Tux	B-Application
down	O
when	O
the	O
speedometer	O
turns	O
yellow	O
.	O
</s>
<s>
Tux	B-Application
can	O
slide	O
off	O
slopes	O
or	O
charge	O
his	O
jumps	O
to	O
temporarily	O
launch	O
into	O
midair	O
,	O
during	O
which	O
he	O
can	O
flap	O
his	O
flippers	O
to	O
fly	O
farther	O
and	O
adjust	O
his	O
direction	O
left	O
or	O
right	O
.	O
</s>
<s>
Courses	O
are	O
composed	O
of	O
various	O
terrain	O
types	O
that	O
affect	O
Tux	B-Application
's	O
performance	O
.	O
</s>
<s>
Maps	O
are	O
composed	O
of	O
three	O
separately	O
saved	O
raster	B-Algorithm
layers	O
that	O
each	O
determine	O
a	O
map	O
's	O
elevation	O
,	O
terrain	O
layout	O
,	O
and	O
object	O
placement	O
.	O
</s>
<s>
The	O
commercial	O
version	O
of	O
Tux	B-Application
Racer	I-Application
introduces	O
new	O
content	O
.	O
</s>
<s>
Besides	O
Tux	B-Application
,	O
players	O
can	O
select	O
one	O
of	O
three	O
other	O
characters	O
to	O
race	O
as	O
:	O
Samuel	O
the	O
seal	O
,	O
Boris	O
the	O
polar	O
bear	O
,	O
and	O
Neva	O
the	O
penguin	O
.	O
</s>
<s>
Tux	B-Application
Racer	I-Application
was	O
originally	O
developed	O
by	O
Jasmin	O
Patry	O
,	O
a	O
student	O
attending	O
the	O
University	O
of	O
Waterloo	O
in	O
Ontario	B-Architecture
,	O
Canada	O
,	O
where	O
he	O
aimed	O
to	O
begin	O
a	O
career	O
in	O
the	O
video	O
game	O
industry	O
by	O
pursuing	O
a	O
computer	O
graphics	O
degree	O
.	O
</s>
<s>
Patry	O
felt	O
that	O
made	O
sense	O
due	O
to	O
Tux	B-Application
being	O
the	O
mascot	O
for	O
the	O
open-source	B-Application
Linux	B-Application
,	O
and	O
continued	O
to	O
work	O
on	O
the	O
game	O
before	O
publicly	O
uploading	O
it	O
to	O
SourceForge	B-Application
for	O
Linux	B-Application
under	O
the	O
free	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
on	O
February	O
28	O
,	O
2000	O
,	O
hoping	O
others	O
would	O
join	O
in	O
on	O
developing	O
it	O
.	O
</s>
<s>
This	O
early	O
version	O
featured	O
a	O
very	O
basic	O
gameplay	O
that	O
consisted	O
of	O
Tux	B-Application
sliding	O
down	O
a	O
hill	O
of	O
snow	O
,	O
ice	O
,	O
rock	O
,	O
and	O
trees	O
for	O
Tux	B-Application
to	O
avoid	O
along	O
the	O
way	O
.	O
</s>
<s>
In	O
December	O
1999	O
,	O
Patry	O
,	O
fine	O
arts	O
students	O
Rick	O
Knowles	O
and	O
Mark	O
Riddell	O
,	O
and	O
computer	O
graphics	O
students	O
Patrick	O
Gilhuly	O
,	O
Eric	O
Hall	O
,	O
and	O
Rob	O
Kroeger	O
announced	O
the	O
foundation	O
of	O
the	O
company	O
Sunspire	B-Application
Studios	I-Application
to	O
develop	O
a	O
video	O
game	O
project	O
.	O
</s>
<s>
Patry	O
stated	O
the	O
game	O
would	O
have	O
a	O
massively	B-Protocol
multiplayer	I-Protocol
and	O
a	O
persistent	O
universe	O
with	O
real-time	O
strategy	O
and	O
first-person	O
shooter	O
components	O
.	O
</s>
<s>
Since	O
their	O
ideas	O
were	O
limited	O
by	O
that	O
time	O
's	O
3D	O
engines	O
,	O
they	O
embarked	O
on	O
creating	O
their	O
own	O
,	O
which	O
according	O
to	O
Patry	O
would	O
make	O
Quake	B-Application
3	I-Application
and	O
Unreal	B-Application
engine	O
look	O
"	O
tame	O
"	O
in	O
comparison	O
.	O
</s>
<s>
The	O
project	O
was	O
eventually	O
abandoned	O
due	O
to	O
it	O
being	O
a	O
"	O
massive	O
undertaking	O
,	O
"	O
and	O
in	O
August	O
2000	O
,	O
Knowles	O
suggested	O
the	O
company	O
resume	O
working	O
on	O
Tux	B-Application
Racer	I-Application
,	O
which	O
became	O
their	O
first	O
official	O
project	O
.	O
</s>
<s>
Porting	O
the	O
game	O
from	O
Linux	B-Application
to	O
Windows	B-Application
was	O
easy	O
,	O
as	O
it	O
used	O
cross-platform	B-Operating_System
tools	O
such	O
as	O
OpenGL	B-Application
and	O
Simple	B-Operating_System
DirectMedia	I-Operating_System
Layer	I-Operating_System
.	O
</s>
<s>
A	O
major	O
update	O
including	O
those	O
improvements	O
,	O
version	O
0.60	O
,	O
was	O
freely	O
uploaded	O
to	O
SourceForge	B-Application
for	O
both	O
Linux	B-Application
and	O
Windows	B-Application
on	O
October	O
2	O
,	O
2000	O
.	O
</s>
<s>
A	O
minor	O
patch	O
for	O
that	O
release	O
was	O
often	O
included	O
in	O
most	O
Linux	B-Application
distributions	I-Application
,	O
and	O
a	O
port	O
for	O
Macintosh	B-Device
was	O
released	O
in	O
November	O
21	O
,	O
2000	O
.	O
</s>
<s>
On	O
February	O
5	O
,	O
2002	O
,	O
Sunspire	B-Application
Studios	I-Application
released	O
in	O
retail	O
a	O
closed-source	O
and	O
commercial	O
expansion	O
of	O
the	O
game	O
titled	O
Tux	B-Application
Racer	I-Application
,	O
with	O
each	O
CD	O
designed	O
to	O
support	O
both	O
Linux	B-Application
and	O
Windows	B-Application
operating	I-Application
systems	I-Application
.	O
</s>
<s>
Improvements	O
from	O
the	O
open-source	B-Application
version	O
include	O
a	O
vastly	O
enhanced	O
engine	O
and	O
graphics	O
,	O
the	O
ability	O
to	O
perform	O
tricks	O
,	O
character	O
selection	O
,	O
and	O
competitive	O
multiplayer	O
.	O
</s>
<s>
The	O
open-source	B-Application
version	O
of	O
Tux	B-Application
Racer	I-Application
,	O
however	O
,	O
remained	O
available	O
to	O
download	O
on	O
SourceForge	B-Application
.	O
</s>
<s>
Sunspire	B-Application
Studios	I-Application
ceased	O
business	O
towards	O
the	O
end	O
of	O
2004	O
.	O
</s>
<s>
Since	O
its	O
inception	O
,	O
Tux	B-Application
Racer	I-Application
has	O
seen	O
unofficial	O
updates	O
.	O
</s>
<s>
One	O
of	O
the	O
most	O
popular	O
examples	O
is	O
Extreme	O
Tux	B-Application
Racer	I-Application
,	O
released	O
in	O
September	O
2000	O
,	O
PlanetPenguin	B-Application
Racer	I-Application
.	O
</s>
<s>
An	O
arcade	O
version	O
of	O
the	O
game	O
was	O
released	O
by	O
Roxor	O
Games	O
,	O
making	O
it	O
the	O
first	O
GPL-licensed	O
video	O
game	O
to	O
receive	O
an	O
arcade	O
adaption	O
.	O
</s>
<s>
Tux	B-Application
Racer	I-Application
was	O
well-received	O
,	O
with	O
the	O
latest	O
version	O
seeing	O
over	O
one	O
million	O
downloads	O
as	O
of	O
October	O
2001	O
since	O
its	O
release	O
in	O
January	O
,	O
according	O
to	O
Sunspire	B-Application
Studios	I-Application
.	O
</s>
<s>
It	O
was	O
a	O
personal	O
fan	O
favorite	O
among	O
Linux	B-Application
users	O
,	O
who	O
often	O
ranked	O
it	O
as	O
the	O
best	O
or	O
one	O
of	O
the	O
best	O
free	B-Application
games	I-Application
.	O
</s>
<s>
Also	O
in	O
2001	O
,	O
MacAddict	O
compared	O
the	O
game	O
's	O
fast-paced	O
style	O
to	O
podracing	O
in	O
Star	B-Application
Wars	I-Application
and	O
summed	O
up	O
the	O
Macintosh	B-Device
port	O
as	O
"	O
more	O
fun	O
than	O
words	O
can	O
describe.	O
"	O
</s>
<s>
The	O
commercial	O
version	O
of	O
Tux	B-Application
Racer	I-Application
attracted	O
little	O
attention	O
.	O
</s>
<s>
Even	O
after	O
its	O
production	O
's	O
cessation	O
,	O
Tux	B-Application
Racer	I-Application
has	O
continued	O
to	O
be	O
generally	O
well-received	O
.	O
</s>
<s>
Linux	B-Application
Journal	O
gave	O
it	O
an	O
Editors	O
 '	O
Choice	O
Award	O
in	O
the	O
"	O
Game	O
or	O
Entertainment	O
Software	O
"	O
category	O
in	O
2005	O
.	O
</s>
<s>
Daniel	O
Voicu	O
of	O
Softpedia	O
praised	O
the	O
Extreme	O
Tux	B-Application
Racer	I-Application
for	O
being	O
relaxing	O
and	O
funny	O
and	O
having	O
the	O
ability	O
to	O
reset	O
Tux	B-Application
,	O
as	O
well	O
as	O
noted	O
the	O
game	O
's	O
fast	O
pace	O
,	O
but	O
criticized	O
its	O
perceived	O
lack	O
of	O
interactivity	O
and	O
having	O
Tux	B-Application
look	O
like	O
a	O
"	O
plastic	O
puppet.	O
"	O
</s>
<s>
Linux	B-Application
For	O
You	O
,	O
calling	O
it	O
entertaining	O
but	O
also	O
criticized	O
its	O
bugs	O
and	O
the	O
"	O
plastic	O
"	O
look	O
of	O
Tux	B-Application
.	O
</s>
