I've found two amazing websites fully of Linux free games !!!
After seen some games like American Army, now I am thinking if the computer we have is going to be able to play 3D games like that !??!?
I also got very happy with the graphical interface that Greg show us in today's class. It is very intuitive and it allow us to put a brief video of each game in the menu, with this interface the students that are going to play, could take a better idea about the games.