Games like TombRaiderand Legacy ofKain: Soul Reaver2 would be considered an action-adventuregame, while a game like Diablo IIorBaldur's Gate: DarkAlliance would be considered an Action-RPG.
This is jarring and stupid and should never be done in any sort of video game (save those played on Facebook) and any game developer who thinks that placing Twitter share buttons in the middle of their dark fantasy RPG is a good idea should think again why it is we play games in the first place.