Boggle tournaments (each family is a team) or Scattegories or something that challenges the MIND. Each family gets the SAME crossword and the first one done WINS.
Then....you can add jump rope competition (longest time, most turns w/out a miss, etc.) Something for the physical!
Team up families for a POLISH SOFTBALL game! SSSSOOOO much fun and ANYONE of ANY AGE can play.......NO BOUNDARIES, can run the bases in ANY direction, can have as many people on base as you want, people can pass each other in "running the bases". People who feel intimidated DON'T HAVE TO. All they have to do is make contact w/ the ball and they don't HAVE to run if they don't want to once they get on a base. LOTS & LOTS of fun!! You also are NOT limited the the number of players on a team! If there are lots, divide the alphabet or some other way so that everyone has a chance to play.