how do i play video games on ubuntu or kubuntu

to use windows games and programs you have ti install Wine:

https://help.ubuntu.com/community/Wine

Have fun!:)

and you can get WINE by going to "Applications>Add/Remove" just search for WINE, click the checkbox next to it, and click "Apply" It's that easy!

alternatively you can open a terminal (Applications>Accessories>Terminal) and type in:

sudo apt-get install wine

and enter your password where prompted. You get the same effect in the end.

If you try these and you get an error, or can't find it, make sure your extra repositories are enabled by going to "System>Administration>Software Sources" and making sure that all the check boxes in the first 2 tabs are checked (except for the one labeled 'source')

Now, if you want the most recent (though possibly less stable) WINE versions, you will want to do this:
Open a Terminal (Applications>Accessories>Terminal) and type in(or copy-paste...dont paste the things next to the #):

wget -q http://wine.budgetdedicated.com/apt/387EE263.gpg -O- | sudo apt-key add -
#This adds the WINE repository key to your repository key list so you can add it to your Repo list

sudo wget http://wine.budgetdedicated.com/apt/sources.list.d/hardy.list -O /etc/apt/sources.list.d/winehq.list
#Add the WINE repo to your repo list, so you can actually download from it

sudo apt-get update
#Update your Repository indexes so you can see the newly available packages

At this point, you can go back to the first part and do either of those to get the new version of WINE

Remember, that before you actually use WINE the first time, you need to run the WINE Configurator (Applications>Wine>Configure Wine). you dont actually need to change anything if you don't want, but it has to be run once before you start.

Just keep in mind, that WINE, although a masterful piece of software, is not perfect, is still in constant development, and may require some heavy tweaking sometimes to get some games to work right. As always, google is your friend, as you can find plenty of walkthroughs on the internet for setting up various games on WINE, when they require non-standard methods.

Finally, a great resource for WINE gaming is here:
http://appdb.winehq.org/
I'd bookmark it if I were you. If you ever want to know if a game works with WINE, and how well, as well as things that some people have used to get it working, this is the place to go. Just search for your game, and you'll get hooked up with all the info you need, and then some!

Have fun with your new software! Hope this is helpful!

Andrew