graphic driver ?

Neither of those games is free software. You will not receive here any "support" to install them.

22-03-2015 13:25:15 name at domain:
> I wonder if I can play http://worldoftanks.eu/ with wine in
trisquel.
> and if I can play http://warthunder.com/en/ which is a
Linux game.
> thanks for the support that has given me.

Hello and welcome to the GNU+Linux-libre Trisquel
forums,

Well, I don't know much about these games also. However,
since I'm also a gamer (not an avid one, but anyways, :D),
perhaps I can suggest some free (as in freedom, not price)
games:

- Battle Just Started
(http://directory.fsf.org/wiki/Battle_Just_Started). It isn't in
Trisquel's repositories;

- NetPanzer. It's in Trisquel's repositories. Some of my
mates from Brazil play this game. I do play it, but I suck
doing so;

- BTanks. It's in Trisquel's repositories. Quite interesting;

- BZFlag (http://directory.fsf.org/wiki/BZFlag). It's in
Trisquel's repositories. I play it sometimes, There are lots of
people playing it.

There are other games too, and even some that I forgot to
mention or that are worth mentioning but weren't since I
think they don't meet the criteria of "war games with tanks
and planes", like Xonotic (futuristic first-person-shooter
with vehicles, low gravity, nice graphics and so on),
Minetest (created **before** Minecraft was ever released,
and some people still call it "Minecraft-like", :( ), Secret
Maryo Chronicles (just like the Mario series, just 100 times
better), FreeDoom (a free Doom. Although some of us are
still studying a free software to play it online without non-
free software), and many others.

Here is one of the various places (not all are listed) to find
free (as in freedom, not price) games:

http://directory.fsf.org/wiki/Category/Game

Or you can just use your favorite package manager to search
the Trisquel repositories.

Now about Wine, it's OK to use it since it's free software
(http://directory.fsf.org/wiki/Wine). **However**, using (or
teaching/helping) it to use non-free software through it is not
an option for a free software activist, so don't insist for
support on how to do such things here. Perhaps the folks at
Warthunder, or whichever non-free program/game you want
to [be ab]use[d], can aid you in this case, not us.

P.S: Greetings from Brazil!

Respectfully, Adonay.
Have a nice day.

--
Assinatura automática – português brasileiro:
– Site pessoal: http://adfeno.mooo.com/
– Em favor da aprovação da Lei ODF em Santa Catarina
(https://secure.avaaz.org/po/petition/Aprovacao_da_Lei_ODF_em_Santa_Catarina),
e para garantir os direitos humanos de igual tratamento pelo
governo ou lei, de circulação dentro das fronteiras de cada
nação, de participação no governo, e de igualdade no
acesso aos serviços públicos, não estou aceitando arquivos
do Microsoft Office ou do Apple iWork. Por favor, use o
LibreOffice (https://www.libreoffice.org/) e seus formatos
do padrão ODF (.odt, .odp, etc.).

Automatic signature – North American English:
– Personal website: http://adfeno.mooo.com/
– In favor of the approval of the ODF law in Santa Catarina
(https://secure.avaaz.org/po/petition/Aprovacao_da_Lei_ODF_em_Santa_Catarina),
and to ensure the human rights of equal treatment by the
government or law, of circulation inside the boundaries of
each nation, of participation on the government, and of
equality on the access to the public services, I'm not
accepting Microsoft Office's files or Apple iWork's files.
Please use LibreOffice (https://www.libreoffice.org/) and its
formats from the ODF standard (.odt, .odp, etc).

I'm not sure why a website for a video game, libre or not, would link to any graphics drivers. It's not typically something you have to worry about. Even in the case of Windows, computers shipped with it are typically also shipped with whatever drivers are needed for the hardware that is a part of the computer (e.g. the GPU).

You seem to be under some sort of impression that the driver is directly connected to the game, which it isn't. Modern games don't connect to GPUs at that low of a level, and basically, anything natively compiled for GNU/Linux will run. The only question is whether or not it will run well, which partially depends on whether or not your GPU's hardware acceleration features can be used, though there are some other aspects. The easiest way to tell is to just run the game and see what happens.

Of course, you shouldn't run proprietary software games, but this applies just as much to libre software games.

These drivers are free, but they need nonfree firmware.

I have the same problem unfortunately....