ForceUser said:Still, I've noticed that for an average session, an hour of play requires about an hour of prep.
d20 Modern somewhat reduces the difficulty of making stat blocks.
GlassJaw said:Well the biggies are magic and magic items. Take those out and you've cut the job in half. A "standard" magic level D&D campaign can be very time-consuming for the DM.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.