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Or, most often, I run some sort of "what if..." campaign - what if the destruction of the second Death Star took out Endor and all of our heroes? What if Leia was never rescued and turned to the dark side? What if Qui-Gon was evil all along?
This is most in keeping with how I would approach these properties as well. What if Luke died in the Mos Eisley Cantina? There's Obi-Wan, devastated by the death of Luke, but, he still needs to go rescue Leia - so, in step our PC heroes and the story moves forward from there. Poof, your PC's are now the center of the story and we can fold, spindle and maul the setting to our heart's content.
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On Ravenloft I don't think of Strahd as the story of Ravenloft. Just my preference. He is part of Ravenloft's origin, but you can play Ravenloft with zero interactions with Dark Lords or with Strahd (and there are so many other domains players can explore).
See, this gets back around to the point I was originally making. To me, the other domains don't exist. If I was going to run a horror campaign, that wasn't Ravenloft, I wouldn't bother with anything to do with Ravenloft as a setting - Domains of Dread etc. I would go 100% new and completely ignore Ravenloft because to me, Ravenloft=Strahd. Now, I have no problems with Curse of Strahd as an adventure. I do rate it as probably one of the best modules of all time, certainly the best of 5e.
But, that's because the PC's are always the center of the story. The beginning might be the same - say Death House and the end might be similar - confronting Strahd, but everything in the middle? That's going to vary wildly depending on the group. Which is what a great module should always be in my mind - a story generator, not a story in itself. I was hoping that the new Dragonlance module would take the same approach - you start at Point X (Inn of the last Home for traditions sake, but, it certainly doesn't have to be there) and you will likely finish in Nerika in a showdown with the heads of the Dragonarmies, but, in between, there would be a bunch of sort of mini-adventures, similar to how Strahd works, where success or failure determines future goals in the war.
Alas, this is not to be. Thus, my interest in the new DL module has pretty much faded. I'm not interested in an adventure set in Krynn. I don't really care too much about Krynn as a setting, other than it's the setting for what I DO want to play in. I'm a bit disappointed, but, ah well, there's always another time.