Established in May 2003, X-Project is a journal-based RPG now on Dreamwidth. We use a combination of in-character journals and email/IM logs. There's a number of settings for a range of play, whatever your preference, and the slate has been wiped clean on all of our available and retired characters.
In January 2015, X-Project underwent a relaunch, which expanded the pool of usable concepts to all of the Marvel properties, regardless of who holds the licence. Using the X-Men franchise as a base, we are now pulling in elements from the MCU, Spider-Verse and other properties. We are also now on Dreamwidth, as of April 2017.