Mosaic City, located along China's coast, is quite large city sometimes called the Crossroads Between Nations due to its diverse population. While it was once a large tourist spot, the city was placed under a blockade as the military appeared claiming there was a radiation leak. The true hazard, however, is much more sinister.
Where do the broken things go in Homestuck? The doomed timelines, the failed sessions, the moments where things don't quite align in the galactic coding of the game?
The Glitch.
The Glitch is a megasession formed of the debris and trash of paradox space. It contains several world and hundreds of players, trolls and humans alike, who have formed three factions in the strange session: The Preservationists, who try to make a new life in their strange universe; the Ruinists who hope to break the game and find the secrets to moving on to the ultimate reward; and the Scavengers, fitting in neither and trying simply to survive without being caught between the two.