Just need to get past Xmas then I can probably afford to add a descent graphics card
More aboutthis system gaming
You will be able to play them yes, but don't expect high settings or resolutions without some lag. The PSU may need upgrading as well, as I doubt the 300W supply included will have PCI-E connectors (or even if you should use it).
Thinking AMD 7750 which gets power off the pci bus only, low end. If graphics budget is higher I have a 500W+ PS on an older system I can swap out. If I can get 1028x762 until then in this system I will be happy!