Here is why Hack and Slash games don't sell

[pokoko]

One of the problems with a lot of genres is that they often have too many games leaning on their primary defining factor as a crutch. If they want broader appeal then they need to cross over into other genres.

Borderlands is a good example. Instead of just being an FPS in a market filled with FPS titles, they crossed over into a Diablo-type looting game and it worked beautifully.