I finaly found a solution to use the Unity 3D Web Player (http://unity3d.com/webplayer)

Here is a Youtube video I did to test a few games BGO (Battlestar Galactica Online), Ratz Instagib, Downtown Drift: http://www.youtube.com/watch?v=MpHJY5Sw ... r_embedded
Unfortunately I just have ATI card at home -- not NVIDIA .I wanted to know if someone will be interested to do a few tests with a NVIDIA card. So we can have an idea for performance.
Tested with winte 1.7.0
1. Download http://www.mediafire.com/?g6ndj2dviujtync
2. Choose a cleaned/fresh WINEPREFIX
export WINEPREFIX=/where/you/want/to/install/everything
3. Decomrpess the tarball
tar xvjf all_tools.tar.bz2
4. Install firefox
wine firefox_set_up_23.0.1.exe
5. Install Flash player
wine install_flash_player_11_plugin.exe
6. Install Unity Web Player
wine UnityWebPlayerFull.exe
7. Decompress the file Unity_WebPlayer_Lastest_Updates.tar.bz2 into $WINEPREFIX/drive_c/users/yourusername/Local\ Settings/Application\ Data/
tar xvjf Unity_WebPlayer_Lastest_Updates.tar.bz2 -C $WINEPREFIX/drive_c/users/yourusername/Local\ Settings/Application\ Data/
Replace 'yourusername' by yours
Notice: If you want to play BGO then you have to patch wine-1.7.0//dlls/user32/winstation.c Replace
HDESK WINAPI OpenInputDesktop( DWORD flags, BOOL inherit, ACCESS_MASK access )
{
FIXME( "(%x,%i,%x): stub\n", flags, inherit, access );
SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
return 0;
}
by
HDESK WINAPI OpenInputDesktop( DWORD flags, BOOL inherit, ACCESS_MASK access )
{
return CreateDesktopA("Desktop", 0, 0, flags, access, 0);
}