I often get ideas for a campaign or a quest that I don't know how I'll end up running a fraction of the ones that could fit into my current campaigns (The Night Below and a solo campaign in the Valley of Obelisks), let alone the ones that would be an entirely different campaign or even system. @_@ So, instead of dooming my ideas and thoughts to a hell stuck in my head (or written on a post-it note that gets lost or a wayward email to myself), I'll share them.
The two main ones I've been pondering lately are a Mutants & Masterminds game and a Delta Green/CthulhuTech game.
Memphis In Mayhem (a play on the festival Memphis in May, if you've never been here...when it happens...which is May, just so you know; I've also always thought that'd be a cool name for a rock/metal/hardcore festival during May, too...I digress): A meteorite (or whatever the proper term is) strikes Memphis at the height of Memphis in May -- Musicfest (read: Mudfest) at Tom Lee Park! After the damage clears and a state of emergency passes, people begin to develop superpowers (DUNDUNDUN!). However, their strength is relative to how close they are to Tom Lee Park (in terms of tens of miles or something so a quest that happens in Germantown doesn't cause much power loss compared to an expedition to Nashville or Little Rock). Eventually, a group known as the Cult of the Dragon emerges as the main antagonists -- their powers focus around breath weapon (read: Blast), flight, natural armor and higher ups would possess the ability to absorb, nullify and manipulate powers. BUT WAIT, THERE'S MORE! The heroes would uncover evidence that the meteorite was actually a genebomb fired by aliens -- the Dragu! Who are attempting to conquer Earth because of it's rich genetic diversity or something. The dragu come in three flavors: dragonoids (think 4e Dragonborn), full on dragons (elder dragu who have undergone a transformation into what is essentially a living weapon of massive destruction, think...well a fucking dragon, under CR'd of course) and Elder Dragu (dragonborn who have remained in their form and lead the race). The aliens would either be aided or destroyed (or completely ignored?) by the heroes.
Delta Green/CthulhuTech -- I'd run the Delta Green portion of this game with the Agon conversion (search for DAGON, the character sheet alone makes me want to run/play), most likely. But, it'd follow a plot that several scientists discover an ancient grimoire and alien technology and reverse engineer it eventually leading to a follow up campaign that was run with CthulhuTech. So, the Delta Green is what ran up to CthulhuTech verse. This campaign might actually be harder to pull off because only about half my players/friend are really into Cthulhu/Lovecraft/Horror and only a couple are into big mecha animu
Though, if it did progress to CT phase, I could also bring in some Eclipse Phase stuff (assuming it's as awesome as I've read about, I'm yet to read through it myself).
Both campaigns would be more episodic than what I usually run (especially since I have some players that always show up and some players that usually show up and some that wouldn't want anything to do with either of these). And I'd use a GITS:SAC style set up with "Stand Alone" and "Complex" episodes -- basically not everything HAS to relate to the campaign arc, there's other stuff that happens as well (that may or may not be tangentially related to the main plot). But investigation, combat and stealth would be present in both (in varying amounts, there's not much stealth or investigation needed when the evil cult knows your super powered ass is coming to demolish them, but it is when you're looking for their hideouts and double agenting as as member).
So, take a story, leave a story?
