Homestuck is a webcomic where there is a multiplayer video game called Sburb which is a standard component of reality itself. Sburb, when played, destroys your original universe and transports you to a liminal place called a Land where the goal is to create a new universe and reality. Because all the realities are made by previous players of the video game, there's a large cast that follows multiple timelines/realities. Because all of this is also a video game, there are some bugs/hacks/glitches. Much of the later plot of Homestuck revolves around trying to glitch reality in a way to kill an unkillable glitched final boss to save and fix the timelines/realities which were all glitched to being unplayable/unwinnable because of it. There are a variety of mediums in which the story is told and the guy from Undertale did a lot of the music for it.

oh okay

thinking of her