My own experience is about the same as ruleslawyer's. I am running a campaign where there are several level 21 and level 22 characters, and the enemies go all the way up to CR 34 (got long-term ambitions).
I have an uber-enemy (63rd level) and have had all kinds of fun trying to figure out how to have a tiered system of something like this:
commoners / normal PCs / epic / deific
So far, there aren't any epic-level spellcasters among the PCs and it's not looking like it'll be a problem for several more levels. But, I really don't like the system as is.
I have started working on other things, such as actual 10th and 11th level spells. I can't really see a reason why a wizard couldn't research a 12th level spell. After all, a 9th level spell that's got a +3 metamagic feat added to it is supposed to be the equivalent of a 12th level spell. So asked myself, what would such a spell be able to do? I ratcheted up the tables in the DMG regarding dice and effects of spells and just pushed the "chain" spells up a few notches. I much prefer this to epic spells. But, I do like the idea of epic spells, and of them being of a different type than normal spells.
I also still try to use the very old WotC product: the Primal Order, and find that this system makes a tiered system rather simple.
Dave
I have an uber-enemy (63rd level) and have had all kinds of fun trying to figure out how to have a tiered system of something like this:
commoners / normal PCs / epic / deific
So far, there aren't any epic-level spellcasters among the PCs and it's not looking like it'll be a problem for several more levels. But, I really don't like the system as is.
I have started working on other things, such as actual 10th and 11th level spells. I can't really see a reason why a wizard couldn't research a 12th level spell. After all, a 9th level spell that's got a +3 metamagic feat added to it is supposed to be the equivalent of a 12th level spell. So asked myself, what would such a spell be able to do? I ratcheted up the tables in the DMG regarding dice and effects of spells and just pushed the "chain" spells up a few notches. I much prefer this to epic spells. But, I do like the idea of epic spells, and of them being of a different type than normal spells.
I also still try to use the very old WotC product: the Primal Order, and find that this system makes a tiered system rather simple.
Dave