I said 10+ for my Eberron/Pathfinder campaign, but it can shift.
The average session I spend 8-12 hours prepping for a 6 hour session, but most of that is doing maps, graphics, newspapers...I'm slow and still learning on that stuff, so it takes me a while. When I decide to do a news paper (usually 4 pages) I can easily spend 5 hours on it alone.
Stat blocks I usually do at work while on hold or waiting for a scan to finish or even during lunch. In those cases it really depends on the adventure. Going through a basic 1st or 2nd level tomb? Easy and fast. Tracking down an 8th level npc with bodyguard and magical protections? Slow and painful.
So yeah, I probably do about 2 hours of prep for every hour of game. And that doesn't include thinking time or emailing to players about updates and roleplaying opportunities.
The average session I spend 8-12 hours prepping for a 6 hour session, but most of that is doing maps, graphics, newspapers...I'm slow and still learning on that stuff, so it takes me a while. When I decide to do a news paper (usually 4 pages) I can easily spend 5 hours on it alone.
Stat blocks I usually do at work while on hold or waiting for a scan to finish or even during lunch. In those cases it really depends on the adventure. Going through a basic 1st or 2nd level tomb? Easy and fast. Tracking down an 8th level npc with bodyguard and magical protections? Slow and painful.
So yeah, I probably do about 2 hours of prep for every hour of game. And that doesn't include thinking time or emailing to players about updates and roleplaying opportunities.