That's it, free games. I'm not giving a strong recommendation, but I played the first new one and thought it was worth it. Considering that it came free with my graphics card at the time.
Also if you have an AMD card, be sure to turn on TressFX for better hair quality.
It's not as good as the other two but it's incredibly well optimized and can run on a toaster. Makes me feel so good knowing that my ancient graphics card is running such a pretty game on high.