I went from 1 to well over over 20 in 1e over a period of many years. One of my friends and I each had six characters that had gone from levels 1 to 12 serving as henchmen to the character's of more experienced players in Judge's Guild's Inferno. Then, one day, I spotted the buried rules on how many levels a character could actually gain per adventure and realized that, my characters wouldn't have been higher than 19th or 20th.
After that, I have tried playing high level adventues, but found I don't like DND after about level 10-12 so I no longer play or run games past those levels.
After that, I have tried playing high level adventues, but found I don't like DND after about level 10-12 so I no longer play or run games past those levels.