Some you can find and install directly through apt-get (command line), Synaptic (graphical) or Add/Remove app (graphical). Those shouldn't need much tinkering. If you mean Windows games, you'll need to use Cedega, Wine or something equivalent, or install a (legal) copy of Windows into a virtual machine, which then acts almost like the real thing. If you use for example Wine, it works as follows: first install Wine, then run the Windows executable (setup.exe, install.exe, whatever) using Wine, hope that it works, and if it does, run the installed app (e.g. game.exe) using Wine, and again hope that it works. If not, visit WineHQ (their website) and see what AppDB says about that particular game.
Last edited by b0uncer; 08-17-2010 at 08:34 AM.