It seems like I'm not the only one who sees a huge reservoir of potential regarding forking in a campaign, but one cool idea jumped to mind. I'm not sure it can work though.
The basic concept would be that some organization has two forks of each player character, and uses them simultaneously.
The thing is, the characters don't know this, and neither do the players even though they play both forks.
Again, this is all kind of vague, but basically I want to mindscrew the players by having them do two sets of missions, thinking they're the same 'character' throughout, when in reality they're two different forks of themselves.
So, perhaps a sample adventure seed would be:
Characters find out something on a mission for Firewall that's extremely sensitive to a Hypercorps or some other organization. This organization finds out somehow, but are unable to directly take out the characters like they want, before they return with their information. Instead, they decide to try to discredit the characters and somehow create a Fork of each character. This fork is contracted by what the characters think is Firewall, to do an exploration a supposedly abandoned habitat. Instead, when they arrive, they see various entities (rogue AIs, perhaps even a TITAN, etc) on the habitat, and are convinced to destroy it. In reality, each Fork's muse has been hacked to change what they see via something along the lines of the vids that can be modified based on the user's preferences. They're really in the same habitat their Alphas are on.
At some point, after enough carnage and when they come up with a plan to destroy the habitat, I have the Alphas 'wake up', disoriented, and remembering only up to the end of their first mission (the one that discovered useful information). Yes, the players would know what they'd been doing, but probably would assume that their characters had been hit by something and went to their last backup. Then as they start their normal routine on the habitat they hear of some sort of massacre occurring, eventually discovering that their Forks are responsible, and having to stop the attempted destruction of the habitat.
There are obviously some loopholes to close.. one being that whatever organization creates Forks and can hack a Muse and pull this off would A) have to be extremely well prepared to pull it off that quickly, and B) exceptionally proficient technologically even for Eclipse Phase.
I'm sure there are other problems with the general outline, but I'm hoping that Eclipse Phase 'vets' can point out the viable elements and the not so viable ones and where problems might occur!
Thanks in advance.