The puzzles normally only have one answer as well, not allowing for any additional creativity on the side of the player. These adventure games usually deal with dialogue as well within the item hunt. However, the conversations that computer games present us with can be a bit lacking. Even the games that allow you to type in your statement don't allow for the fulfillment that pen and paper RPGs provide. The man flees, leaving only a small yellow puddle where he was standing.
Player laughs insanely.
CRPGs are, for the most part, huge, semi-linear dungeon crawls. RPGs for Console systems aren't much better. But, all of these games I play. I simply object to the word role-playing being tacked onto the game title to make a buck, or because no one expects more. The point is, until character interaction and true interactivities with the environment become available within the game the title of RPG is a misnomer that we should rebel against.