ORIGINAL: Mark VII
My most disappointing computer game would be AH's Rise and Fall of the Third Reich. My friends and I just wore out the board game version since we were always playing it. The computer version was just useless and a waste of the money and time put into it!
I was a Beta on that one. AH wouldnt listen to us at all. All of us begged for them to make it 2 player mainly with an AI as a "training" tool. AH wouldnt have any of that. They had very specific things they wanted us to "playtest" and anything beyond that they wouldnt listen. It wasnt until it was released that they even attempted to put an E mail option into it.
I would have named this one as the worst, but I didnt buy it. I got mine free [:D]
(for the record, I asked them to remove my name from the list of playtesters, but it had already been printed)