Does anyone know how experience is awarded? Fighting and exploring, right? But if anyone knows the particulars, I'd appreciate a little more information.

If you are talking of Masters of the Broken World, then you can read this post which summarize the content of this thread (russian forum translated by Google).

Thanks. I was wondering about exploring too, and whatever else might give experience. But there's useful information there too. I wouldn't have guessed that you don't get experience for a spell kill.