OK, this is where verisimilitude comes in. I have no problem imagining things or suspending disbelief. Obviously I would not play PC games if I had that much of a problem with realism as 'OMG I can't kill somebody with a single bullet as it is in real life' doesn't really apply to games.
HOWEVER, that is not the point. I am not judging Fallout 3 based on realism, it clearly isn't realistic, but then again neither is any other game. Verisimilitude works by setting a number of principles to your world, and then having your game abiding by it, kind of like physics for that particular world. Tell me that magic potions heal wounds because that is how magic works in this world, then ok, I believe you. No problem. Tell me this laser rifle turns you into dust, cool! Oh, and heads explode when shot at, excellent!
The problem is Fallout 3 is inconsistent in that it goes against the world it created, and against the world created in the two previous intalments. Food is still the main way of sustaining people. Water is clearly vital. Yet, the game makes no attempt to explain where people get their water from. There is not one single well in the entire game. Not a homemade purifier. Zippo. At the same time, the game says people survive on scavenged food, but at the same time, says its 200 years after the war. These two things don't go together, food would have rotted, and been consumed by the first couple of generations. Im not saying this is related to reality or not, im saying it doesn't make sense in the world its set in (verisimilitude) . . .
I've removed the reference to previous games because this comment of yours can pretty much stand on its own.
I've done a *lot* of game design -- my husband and I ran an extremely popular DikuMUD for over 10 years -- and I know exactly where you are coming from. Since most people would be unfamiliar with the word "verisimilitude", I prefer to use the phrase "world logic". Yes, there is a lot lacking in FO3, but that's normal for many games. You could spend a four years just working on that alone, but you really have to draw the line somewhere and get the game out and on the shelves. What I'm saying is that, to me, most of the illogical FO3 world is forgivable and I know it will either be explained or fixed by Beth at some point, or a modder will come along and do it for them.
Just my 2 caps
Eileen