Clearly for me: C'n'C4 ! Why: I've played the Beta of both, C'n'C4 and StarCraft2. While StarCraft2 stayed true to it's rots, and was pretty awesomely playable, C'n'C4 just ignored what made it's Series awesome. Within playing the first hours, I've learned, that I can't build a Base anymore, like I used to. Also having such a stupid Vehicle showed to meeven more, that it's extremely annoying. Not to mention the Online-Multiplayer, where you were to encounter Opponents, way stronger than yourself, leavin you, the Player quite in a weak position from the Start (it was in those situations, that I liked the Beta was crashing so oftenly). Everyone liked building their big Bases, collecting Tiberium to increase their Army... But in 4, we didn't really get what everyone was hoping for, but instead a Game, that's more different to the Series, than what would be healthy. It's like giving a Heart-Patient some cyanide to stop the heart-problems. C'n'C4 is the first game of the Series, that I won't be playing, even if someone would be giving it as a gift it to me. And just why is EpicMickey on this list? - Well, he might not be everyone's Favorite, nor do all people like it being Wii-only atm, but that's not really a reason, that it could make it disappointing.
I really looked forward to C&C 4. This was supposed to be an epic ending to the saga of C&C, and was hyped up to be something revolutionizing, more strategic, almost a new gameplay system. The new elements of the game pretty much completely eliminated one of the main pillars on which the genre is based on. It disappointed many fans and was not the game to end the series.
@Katra dude have you even played FFXIII it didn't suck it just didn't stay trut to its colors it was a good game in its own right i liked it for that but i hated it for the lack of normal final fantasy stuff that it should of had
Now it's funny: this video starts with an Epic Mickey advertisement, and it turns out it's nominated to be the most disappointing game nominees. If i were the publisher of the game i'd definetly deny paying for this ad :) Anyways: it was FF14 for, since i've been waiting so long for this game, and it playing the open beta showed me how bad it'll be at launch, too bad!
APB: All Points Bulletin for sure. Never saw a failed game with SO MUCH potention. C&C4 was an Epic Fail too, but most fans didn't like if from the first announcement.