Bad games have been a blight upon the world for as long as video games have been around. Most likely, they always will be. From broken or bland design to poor technical execution, there are many ways a potentially good game can go bad and an equally long list of reasons for why a game might descend into the realm of endless suck.
Whether fun just wasn’t in the budget or over-ambition resulted in under-delivering, the bottom line is that bad games just aren’t that much fun. Except when they are.
Source: Destructoid What’s the ‘best’ worst game of all time?