<s>
Tux	B-Language
,	I-Language
of	I-Language
Math	I-Language
Command	I-Language
(	O
TuxMath	B-Language
,	O
for	O
short	O
)	O
is	O
an	O
open	B-Application
source	I-Application
arcade-style	O
video	O
game	O
for	O
learning	O
arithmetic	O
,	O
initially	O
created	O
for	O
Linux	B-Application
.	O
</s>
<s>
The	O
first	O
alpha	O
of	O
the	O
game	O
was	O
released	O
by	O
its	O
initial	O
developer	O
,	O
Bill	B-Language
Kendrick	I-Language
,	O
in	O
September	O
2001	O
,	O
days	O
prior	O
to	O
the	O
September	O
11	O
,	O
2001	O
attacks	O
.	O
</s>
<s>
Eventually	O
the	O
city	O
imagery	O
was	O
replaced	O
with	O
igloos	O
,	O
to	O
match	O
the	O
arctic	O
theme	O
of	O
Tux	B-Application
,	O
the	O
Linux	B-Application
penguin	I-Application
,	O
who	O
stars	O
in	O
the	O
game	O
.	O
</s>
<s>
The	O
game-play	O
mechanic	O
is	O
based	O
loosely	O
on	O
that	O
of	O
the	O
arcade	O
game	O
Missile	B-Application
Command	I-Application
,	O
but	O
with	O
comets	B-Language
falling	O
on	O
cities	O
,	O
rather	O
than	O
missiles	O
.	O
</s>
<s>
Like	O
Missile	B-Application
Command	I-Application
,	O
players	O
attempt	O
to	O
protect	O
their	O
cities	O
,	O
but	O
rather	O
than	O
using	O
a	O
trackball-controlled	O
targeting	O
cross-hair	O
,	O
players	O
solve	O
math	O
problems	O
that	O
label	O
each	O
comet	B-Language
,	O
which	O
causes	O
a	O
laser	O
to	O
destroy	O
it	O
.	O
</s>
<s>
The	O
game	O
has	O
multiple	O
user	O
support	O
(	O
useful	O
for	O
schools	O
)	O
,	O
LAN	B-General_Concept
multiplayer	O
mode	O
,	O
on-screen	O
tutorials	O
and	O
a	O
training	O
mode	O
-	O
over	O
50	O
bundled	O
lessons	O
ranging	O
from	O
simple	O
number	O
typing	O
up	O
through	O
all	O
four	O
basic	O
arithmetic	O
operations	O
with	O
negative	O
numbers	O
and	O
"	O
missing	O
number	O
"	O
questions	O
(	O
e.g.	O
</s>
<s>
Being	O
an	O
open	B-Application
source	I-Application
project	O
,	O
multi-platform	B-Operating_System
support	O
for	O
Linux	B-Application
,	O
Windows	B-Application
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
BeOS	B-Application
and	O
others	O
is	O
available	O
.	O
</s>
<s>
Localization	B-General_Concept
to	O
over	O
thirty	O
(	O
human	O
)	O
languages	O
was	O
created	O
by	O
the	O
games	O
community	O
.	O
</s>
<s>
Included	O
is	O
also	O
"	O
Factoroids	O
"	O
,	O
a	O
clone	O
of	O
classic	O
Atari	O
video	O
game	O
"	O
Asteroids	B-Application
"	O
,	O
modified	O
to	O
be	O
an	O
activity	O
to	O
train	O
factorization	O
.	O
</s>
<s>
Originally	O
written	O
in	O
C	O
language	O
and	O
based	O
on	O
the	O
SDL	O
library	O
,	O
TuxMath	B-Language
has	O
been	O
rewritten	O
in	O
JavaScript	O
in	O
2022	O
,	O
allowing	O
it	O
to	O
be	O
played	O
from	O
a	O
web	O
browser	O
or	O
from	O
a	O
smartphone	O
.	O
</s>
<s>
The	O
web	O
version	O
of	O
TuxMath	B-Language
allows	O
to	O
play	O
the	O
game	O
where	O
the	O
player	O
has	O
to	O
solve	O
operations	O
to	O
shoot	O
comet	B-Language
TuxMath	B-Language
,	O
but	O
not	O
the	O
"	O
factoroid	O
"	O
game	O
.	O
</s>
<s>
TuxMath	B-Language
is	O
included	O
in	O
numerous	O
Linux	B-Application
distributions	I-Application
,	O
including	O
the	O
Edubuntu	B-Application
flavor	O
of	O
Ubuntu	B-Operating_System
.	O
</s>
<s>
It	O
is	O
included	O
as	O
a	O
game	O
on	O
the	O
ASUS	B-Device
Eee	I-Device
PC	I-Device
.	O
</s>
<s>
It	O
was	O
also	O
included	O
on	O
the	O
Dish	O
Network	O
721	O
PVR	B-Application
.	O
</s>
<s>
Numerous	O
schools	O
use	O
TuxMath	B-Language
,	O
and	O
school	O
newsletters	O
,	O
educational	O
,	O
software	O
websites	O
and	O
publications	O
mention	O
it	O
,	O
often	O
together	O
with	O
other	O
open	B-Application
source	I-Application
educational	O
software	O
.	O
</s>
