I am going to give you a suggestion. Bring Pictionary or Pit, and make everybody play. Those are laughing, screaming family memories that will never die! A computer is not involved! Interaction! The things they draw to get the word across in a picture, amazing!! And Pit! Oh my! It's war, but not with weapons. With trades and eye contact, and actual family!
And then there is the grandson who snuggles up and wants an alliance! Geeze! He's his father's kid, and his father is MY kid...
Suzi