Najo said:
Ok, I need some advice on crafting a "Low" magic campaign with D&D rules as is.
Here is my goal:
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* do not alter the class progression or rules
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I think you might need to tweak the rules a bit or add some further rules but still get all the other things you want. My proposal.
(1) Make it harder to become a spell caster. Not for PCs but in the apprenticeship phase. You may want to require a minimum IN or WS. If you don't want to do that, you could postulate that becoming a spell caster is hard, requireing a grueling 10 year + apprenticeship. Normally one would have to make some sort of Will based roll to keep at it and not just give up. PCs are those who by some inner drive made it through apprenticeship.
This can drastically decrease the number of spell casters per capita. And hence, the prevalance of spell casting and magic items (more on items later). This may make many spell casters arrogant and not well liked or understood by the common folk.
You an add in the idea that sometimes there are "accidents" in the training that can injure, kill or drive insane the apprentice. The common folk are not going to look to kindly on this profession that maims and there sons and daughters. If you up the mental requirements or just make it harder to get in the door on being a caster, there could be increased competition for good apprentices, thus even common folks with the ability can apply. Of course the nobility are not going to like this equal opportunity policy. You can also imagine the competition between the divine casting professions and the arcane casting professions for apprentices, eading to some bad blood between the two camps.
(2) Magic Items. A very hard rule to change it seems is item construction. I make it far harder than base D&D (of any edition) scrolls and poptions are more straight forward but still take on the order of weeks per level. A stay at home mage can do very well jsut cranking out these things. Given the difficulty and rarity they are way beyond the means of the average citizen, but kings, nations and adventurers can afford them. So you won't see these things being used to solve everyday problems when a much more cost effective solution is present. In addition, these thiings are likely to be considered a strategic resource. Kings hording healing potions to give to their elite troops or themselves.
A corrallary it items like swords etc. take so long to make that PCs are unlikely to do this. Such items are made slowly.
So how do you make sure there are still plenty of magic itmes about? Well people have been making them for millenia, add in a ew extra-planar sources and you have quote a stock built up over time. The good thing is theses things are not floating around the marketplace, but lost here and there in various dungeons and wilderness areas. just the kinds of places the PCs go. So the PCs are going to have the standard itme mix, and it will be even more special as few non-adventurers will be so well equipped.
I know players like to design their own items. here's how I work it. I have them tell me what they want, at the start of the campaign preferrably. If it is a good idea, someone is likley to have thought of it before and they have been made and exist in the world. In a sense the players are helping you build the world. If you want you can always have them search for runmors of such items and then seek them out.
Another way to allow customization without allowing easy creation, is to let players "meld" items to make unique ones. The base items still take a while to make but the combination of the powers of two into one is fairly straight foward spell/feat & spell. You can even port over the creation cost, xp cost, etc for this "melding."
I've found players don't normally want to roleplay item creation, they just want to design them. The above allows them to do that without the logical consequences on teh campaign wolrd if 1 in 400 people can make a magic sword in 1 month.
In the end, players don't care that it is harder to maek items as they have a sufficient supply and the dungeons are still stocked.