Whether the game was just plain terrible or it just couldn't live up to its expectations, here is the GT Countdown to the top 10 disappointing games of the decade.

ThreeTwoFiveSix

The name of the video is a little misleading, but it sure makes people pay attention! :D
Here are Screwattack's Top 10 Biggest Busts In Gaming...

Miss Razz via gametrailers.com »

The games on this list aren't neccessarily bad games or over-rated games. They are just games that were over-hyped to the point of ridiculousness and didn't end up delivering what was promised.
Here are vgchartz.com's Top 20 Most Overhyped Games Ever.

Go to the source for the full "Part 1" list.
Here is part 2.

Miss Razz via news.vgchartz.com »

"Game PR gurus often promise things that aren't always delivered in their final games. Often caught in the pre-release storm of hyperbole, hateful buzzwords and excitable press releases, the marketing men commit their games to features or mechanics the developers just can't live up to. In a world of 22 hour days, sleep deprivation and divorce-baiting deadlines, shit happens. That seemed to be the case with the following failed preview pledges. They all got talked up (sometimes outrageously), b..."

Miss Razz via www.gamesradar.com »

"I fended off last year's hype machines like a fish resisting a hook, but by fall I was caught and reeled in by the likes of Spore, LittleBigPlanet, Gears of War 2 and Fallout 3. They were all innovative, and unique and groundbreaking, but none met my unreachable expectations.

Was it always like this? Has every big release launched like an easy home run, only to strike the foul post? My childhood memories say, "No," but my retrospective of the Most Hyped Games Ever says, "Yes."

That's ..."

Daigoji_Gai via ugo.com »