Have fun with your friends.
Have a website where you can initiate a game. It goes like this:
– Enter one sentence to start the story.
– Enter your friends email address.
– The system will send your friend the last sentence (yours) without disclosing who you are, but explaining the game.
– If he wants to participate he clicks on the link in the email and does the same first two steps as you did (write a sentence and an email address of his friend.)
– The game ends when the last person does not continue the game within a given time, one day for instance.
– when the game ends everyone who participated get an email with the whole story you creates together, as well as the list of participants.
Can also be done on other platforms like Facebook.