My main character as a kid, Dron the Mighty, was a 526 level magic-user. Don’t ask me how he got that high of a level, because even I don’t remember. He had a magically domed fortress on the positive material plan that was miles long. His son , Dron II, also reached triple digits as far as levels. Then in a 24 hour marathon game session with my cousin (he also had guys that high), we took on some ultimate force and nobody won. The creature perished, but so did all of our guys. It just wasn’t fun anymore so we wrapped everything up and started over.
This column talks about how to cope with ultrahigh level characters. It’s a pretty good read just because I remember having to deal with these things so many years ago. Now I have a hard enough time finding time for a game much less having characters who are epic level.