I think I mentioned this twice in a matter of weeks. Enough to make myself curious as well. I went and dug up the old notes. DP's words carry weight with me (despite being salted with a spicy crust of scorn); I have to believe writing my own stuff is better. Places and faces will just come more readily to mind on the fly if they're your own. But here I am, proud of this mashup and fascinated by all these other mashups people are coming up with.
I look at this thing and I'm actually pretty amazed by the intricacy of it:
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The PC's found an artifact on the aisle of the Kopru in the hands of a mummy from a long extinct civilization. The civilization's great city was where the huge crystal lake now is. Defeating the plesiosaur they previously fled and swimming down into the depths, the PC's found a city under a magical dome. The artifact let them into a tower that touched the roof of the dome. Entering through the tower they slew a hideous chitinous abomination that they caught mid-molt and that sets everything in motion.
Basically this city has been moving in treacle-time for aeons but on activating the artifact and accidentally murdering the avatar of Blibdoolpoolp, consort of Dagon they have set a timer in motion. The city was ruined by a cataclysmic upheaval and sent to the bottom of the lake. Its inhabitants divided into the Engineers to the NW, defending the rapidly mutating surviving citizens with their constructs (S3); the Wizards warring with each other to the SW including a school of Diabolists, an Archmage living with his cloned daughter and an army of white apes and a school of elves committed to undeath to protect their secrets (Ruins of Mythdrannor); Deep ones to the SE led by Dagon from Cthulhu D20 are trying to raise great Cthulhu at the pit of chaos in C11 (The death of Dagon's consort has tipped him over the edge); and the Blight to the NE, an evergrowing thicket full of vegepygmies (The control room is in the center of the lake). And a mysterious Trader who wanders between them all, seeking his own ends.
I wrote up a rough ruins generator to allow PC's to explore and peppered it with rooms from the various cannibalized modules, fitting them into the various buildings. I let the PC's form alliances and work fetch quests for various powers on the board and meanwhile, moved up the clock day by day, slowly building up the tension of a groaning dome over their heads. The PC's wrote the story themselves. Tipped the balance, engaged in pitched battles in the streets between robots, apes, liches and devils before crashing up that pillared promenade in the SE in a giant construct bristling with reactivated energy weapons to kill Dagon and stop the great summoning. The place crumbled and they escaped through the garbage disposal in the NW leaving all but the goddess of the hospital (original copy of the archmage's daughter) and her mutated mongrelman patients (to whom they gave the key to the control room) to their fates.
Obviously that could have been even more TL/DR but it's not worth a new thread. The point is, uh, shit what is the moral... Oh yeah, modules rock, doing your own stuff is awesome and mashups are total fucking yes.
You're all right. C'mon, group hug!