I can relate to that so much. Switching gears from GM to player is a real struggle for me at times.

The way the party kind of adopted the recurring mini BBEG. He was designed to be a recurring villain , showing up near the end of act 1, and was supposed to be the final boss in act two.

He had done some truly vile things to various members of the party, but apologized for them each time, spoke to them as equals, and was overall a fairly amicable person, at least if you can discount the kidnapping and torture on one players father, and the murders of another character's entire tribe.

Late in act 2, they discovered that he was under a compulsion to serve the whims of the big bad, and I had assumed it was going to lead to a confrontation where they killed him, then went after the BBEG. Instead, they went on a whole redemption arc for the mini BBEG, found a way to break his compulsion, and went on a long quest to free him from the control of the BBEG.

It was kinda inspiring, again except for the multiple murders and other truly vile things this guy did. It was certainly not the outcome I was expecting in a campaign specifically bent to focus on moral grey areas.

I am something of an over planner, but it took me probably 40 hours to get the themes and major plot points nailed down for all three acts. Then, probably another 40 to flesh out act 1 to the point I was ready to bring the players into the sandbox.

For the first year, I was then spending about 3 hours of prep time per session to tie in all the character backgrounds and weave them into the narrative. After the first year, it was down to probably an hour of prep per session unless they were about to transition between acts, or a major character story was happening.

Uncountable.

A single intense session can they're take an entire weekend of planning as your primary task, depending on how you run your table. It can take longer.

I remember the big fight from my longest campaign ever.

Arranging tokens, having charts set up for pre-rolled checks for the most common bad guy actions, drawing up maps, planning out the "big" minions' actions, the actual bbeg's actions he intended, the kinda of minions and their sections of books marked and ready, organizing miniatures for the sections that would make use of them, checking character sheets to make sure I could keep the important parts in my head, and more.

I think I worked for two weeks getting it all set up, an hour or two a day mostly, with the two days before set aside for getting everything finalised and physically set up, and those two days were pretty much an all day thing.

And that's with me already having had a good chunk of that info in my head. Back then, I could quote off most of the recurring monsters' stats, and the main bad guys too.

It really does, and there are always some loose dissapear into the weave over the course of a campaign, but there is a huge high from pulling years of work into a final epic encounter and conclusion.

Plus, the debrief at the end where players can ask all the questions about loot they missed and which characters were actually doppelgangers is always fun.

I recently joined a second game with a different group as a player, so I still get my individual play time. Some of my players will also likely run one shots or small adventures in the interim while I do the next campaign prep, but they are adamant that they don't want to run any long form stories.