Twilight of the Superheroes is the title of a proposed comic book crossover that writer Alan Moore submitted to DC Comics in 1987 before his split with the company. Although various elements suggested by Moore later occurred in various comics, Twilight was never produced. The proposal gained fame after surfacing on the internet in the 1990s where its status as a lost work by one of the superstars of the medium, as well as its dark treatment of superheroes, garnered much attention.
The title refers to Ragnarök from Norse mythology. The story was to be set two decades in the future of the DC Universe and would feature the ultimate final battle between the heroes of Earth, including the older and younger generations of superheroes, as well as the supervillains and some extraterrestrials who inhabited Earth in the DC continuity. Twilight was conceived as a standalone limited series which could also be tied to ongoing titles at the other writers' consent, much like the then-recent 12-issue limited series Crisis on Infinite Earths.
The complete text of the story was released in December 2020 by DC Comics.[1]