Pre-apocalypse
The great kingdom of Dhyana is in a golden age where adventurers flock to in hope of fame, riches and power. A group of four adventurers arrive and find themselves recruited by a guild and sent on seemingly random missions, competing with other adventurers for treasure and fame.
A vast network of underdark tunnels is discovered beneath the city sewers, and as the adventurers explore caves and archaic dungeons beneath the cities it becomes apparent that most of the quests they've been doing lately are connected. Behind the scenes kobolds, dragons and dragonkin are plotting and scheming against humanoid rule, pitting the races against each other, unleashing demons, and breaking down the very fabric of magic itself in an attempt to eradicate the humanoids and their power.
Rumors has it that Tiamat herself is behind it, ushering in a new era for draconic rule with Ashardalon as her champion, and an unlikely alliance between all chromatic dragons, and the adventurers find themselves right in the middle of it, with the fate of the world as they know it in their hands.
Post-apocalypse
Demons have roamed the lands for decades, tearing it apart, eradicating all life they come across.
There were few signs of life remaining, and then suddenly the demon hordes vanished over night. Magic returned, and a peaceful tranquility indicated a new dawn. Though sparse with life, and on a scarred earth, the survivors at last see hope after decades with doom. They have been mostly alone and always in hiding for as long as they can remember. Some of them were born into it, and all of them have lost someone close to them.
A stormy night drives four survivors together and they establish a small settlement, but with a host of draconic races on the rise, and the remnant aberrations, magical beasts and demons after the apocalypse, their settlement and maybe even survival of the non-scaly races depend upon them, and it won't be easy.
I actually started with the post-apocalypse idea, and my players got really attached to that setting even though we didn't get very far, so when two players had to leave for school a year I started the pre-apocalypse campaign. What they do in the pre-apocalypse campaign will greatly affect the post-apocalypse campaign, and the maps are full of memorable loactions, so I'm really excited to see what happens, especially when we go back to post-apocalypse and they revisit old encounter locations.
