yeah aside from dell boy here with his M140 we all usually run something other than integrated graphics. I can play CZ just fine on a 5 year old p3 with a geforce videocard, which is simillarly capable to intel extreme graphics.
IF you feel like playing new games, post at least your computer model here so we can figure out if it has a slot to expand, and find you a best value for what you can spend.
PC gaming takes knowledge, but you will gain experience in hardware the more involved you become.