Single day campaign

[Aaedimus]

Inviting a bunch of people to play a full day (8-12 hr) campaign... want to make sure I have enough content while not going overboard...

Any reference material or campaigns you might suggest that'll fit into that kind of time-slot?

It'll be 5-9 players most likely...

[Tiadoppler]

This sounds like a good amount of time for a short one-shot. With 5 players and 12 hours, it'd probably be easy to do 2-3 full adventuring days, but with 9 players (a huge group that'll move slowly) and 8 hours, it might be a struggle to do more than 1 full adventuring day.

You might take a look at Ghosts of Saltmarsh.

Edit: Generally, if I'm running for 3-5 people, I try to plan for a 'day' or major plot section every 4 hours. If the group is 6-8 people, I'd plan for a 'day' every 6 hours of play. More players = slower game (in the vast majority of situations).

[Aaedimus]

Yeah, I was thinking of splitting it into like, 3 one shots with interconnected stories, and having a break between each one. I don't want it to feel formulaic though.

Is ghosts of salt marsh in a specific book?