If you use a laptop, that laptop computer just CAN'T run that game.
If it's a PC with an integrated video card, you need to install a real video card... IF it have any expantion slot available.
Check what kind of expantion slot you have BEFORE geting a new video card. You can have PCIe, AGP or PCI cards. They are NOT slot interchangeable.
PCI slots are shortish and close to the back of the case. You usualy have 2 to 4 of them.
AGP are situated about 1 inch back and have a dual row of connectors on each sides. You only have ONE or zero.
PCIe (PCI Express) are about 1.5 inch back. Most computer have only one, but gaming ones can have 2 or 3.
NO computer have both AGP and PIe.
Electro, May 2013