i played dday and found it to be a nice alternative to the usually lengthy games that are europe, pacific revised ect. dday can be completed in an hour and is very fun, fast paced and histoically accurate. its the choice if you want to get a quick game of A&A in. i havent played nor heard much about the battle of the bulge game so i cant compare the two. but dday is certainly a great addition to A&A.