Lucius wrote:Zombra wrote:OK, I can go along with your reasoning.
As for the last question ("Does it fit?"), I don't think so. Real-world religions would look weird next to the Guardians and Mushroom cultists.
Good question, and very good point. Which is why I mentioned Scientology earlier. It would fit right in! But in all seriousness maybe you're right and we should leave religion out of it. I'm not one for offending people.
At least not too much. 
Fallout 2 already had Scientology in it as a pretty substantial joke. If you recall, the Hubologists even had porn star versions of Nicole Kidman and Tom Criuse promoting the religion through star power. So Scientology jokes have been done (and they were pretty heavy ones too, what with the ridiculous space ship and their nonsense jargon and general cultish recruiting). If you read through all of those holodisks, the jokes just went on and on.
I loved the irreverent sense of humor in Fallout 2 and would love to see more of it. That said, of course care must be taken to not just be bigoted in the process.
If we want to take things seriously, I would look to the Black Death as an excellent example of the sorts of things I would like to see. A new sort of Flagellent movement would be perfect. Historically, they felt that humans had become corrupt and so God was punishing us. Their solution was to punish themselves so harshly that God would not have to. They would go from town to town beating and whipping themselves half to death and building up big crowds of penitent onlookers. You could even work in a Monte Python reference if you wanted to play it up as a joke.
Also, during this period the Millennialists were hugely influential. We are entering into the last days, and so God needs our help to speed up the process. The medieval Millenialists hunted down and killed Jews, Muslims, and heretics on mass so that the dead would rise and gather outside of Jerusalem, in Jehoshaphat for judgement. A big part of the Crusades, in fact, was motivated by the desire of the rich to be buried in Jehoshaphat so that they could be the first to be judged. This sort of thing could be played off very seriously without making insulting mainstream Christians. I would have the city (or military compound) of New Jehoshaphat and play up their ignorant zeal more than their Christianity. Make it clear to everyone that they do not understand the actual tenets of Christianity and even have a few token Christians comment on how nuts they are. Just make sure to not tack on a current denominational name to them, but call them something new. They may wave crosses and Bibles, but it will be clear that they are to be thought of as crazies. I would even have them protest at a Ranger's funeral, just for good measure.
Also, I am drawn to Stephen King's crazy half-memory of Christianity from the Dark Tower books. It may not have been enough time for so much to have been forgotten, though.
I general, though, even if no modern religions are shown, it would be nice to see something as small as finding cross/crucifix necklaces around in the wasteland. This is a small touch that acknowledges that at least real world religions existed at one point in the past.