Publication history of DC Comics crossover events

During its 75 years of publication, DC Comics has produced many crossover stories combining characters from different series of comics. Some of these are set in the fictional DC Universe, or any number of settings within the DC Multiverse.

Publication history

Crossover Event	Year Published	Notes
Crisis on Infinite Earths	1985	The Anti-Monitor tries to destroy the DC Multiverse but succeeds only in merging it into a single universe; numerous characters die, including Supergirl (Kara Zor-El) and the Flash (Barry Allen). Series to spin out of event; Man of Steel, Green Lantern Corps.
Legends	1986	Darkseid and his servant Glorious Godfrey attempt to ruin humanity's faith in superheroes. First Post-Crisis appearance of Captain Marvel in normal continuity, and forms a new Justice League roster. Series to spin out of event; Suicide Squad, Justice League International.
Millennium	1988	After the Guardians and Zamarons exile themselves from this dimension, one of each remains and seeks out 12 Chosen to become the New Guardians. The robotic Manhunters aim to prevent this and several supporting characters were revealed to be Manhunters. Series to spin out of event; New Guardians.
Cosmic Odyssey	1988	Darkseid strives to gain the Anti-Life Equation. Series to spin out of event; New Gods.
Invasion!	1988–1989	The Dominators have put together an Alliance to invade Earth and eliminate the threat posed by their unpredictable "metahumans".
Janus Directive	1989	Suicide Squad leader Amanda Waller sends her agents on missions in the apparent pursuit of her own private agenda, the so-called Janus Directive.
Armageddon 2001	1991	Monarch threatens to destroy the future and Earth's superheroes must stop him.
War of the Gods	1991	Wonder Woman and the Amazons are caught in the middle of a war between the ancient Roman gods and the Olympian gods. Meanwhile, Circe frames Themyscira for crimes that leads to a war between America and the Wonder Woman's home.
Eclipso: The Darkness Within	1992	Earth's superheroes fight Eclipso and his Pawn Lar Gand.
Trinity	1993	The Green Lantern Corps, The L.E.G.I.O.N., and The Darkstars go up against the beings called "The Triarch".
Bloodlines	1993	The DC superheroes go up against alien parasites; new superheroes are created from some of their victims.
Worlds Collide	1994	The DC superheroes meet their Milestone Comics counterparts.
Panic in the Sky	1994	The Legion of Super-Heroes traverses multiple universes, and attempts to resolve some of the inconsistencies of the timeline of the DC Universe.
Zero Hour	1994	Extant and Parallax attempt to recreate the Multiverse; a new timeline emerges.
Underworld Unleashed	1995	Neron a demon from Hell offers the DC universe villains an "upgrade" in exchange for their souls.
The Final Night	1996	A Sun-Eater threatens life on Earth by devouring the Sun. Hal Jordan sacrifices his life to destroy it
DC vs Marvel	1996	Two brothers who personify the DC and Marvel universes become aware of the other's existence, and challenge each other to a series of duels involving each universe's respective superheroes. The losing universe will cease to exist. The story has an out of universe component in that although there are eleven primary battles, the storyline does not show one side as being victorious. The "brothers" resolve the situation by temporarily creating a new universe, called the Amalgam universe, which is occupied by merged versions of many of the heroes. An inter-dimensional character called Access eventually manages to restore the universes to their normal state.
Genesis	1997	Darkseid battles Earth's heroes when the Genesis Wave strikes; many superbeings have their powers altered or negated.
DC One Million	1998	The Justice Legion Alpha of the 853rd century joins together with the present day Justice League to battle Solaris the Tyrant Sun.
Day of Judgment	1999	Demonic forces threaten the Earth; Hal Jordan becomes the Spectre.
Our Worlds at War	2001	Imperiex threatens the universe.
Identity Crisis (DC Comics)	2004	Sue Dibny, the wife of superhero Elongated Man, is murdered in their apartment. The DC superhero community rallies to find the murderer.
Countdown to Infinite Crisis	2005	Consists of the one-shot Countdown to Infinite Crisis and four miniseries which spin out of this comic: Day of Vengeance, in which Shadowpact is formed to defend magic from the Spectre; Rann-Thanagar War; Villains United, in which the Secret Six is formed to fight the Secret Society of Supervillains; and The OMAC Project, in which Batman's mistrust of his fellow heroes leads to the creation of an army of cyborgs.
Infinite Crisis	2005	Kal-L, the Superman of Earth-Two, and several other characters return to attempt to change the universe for the better. History is altered at the end of the series.
52	2006	The "missing year" between Infinite Crisis & One Year Later where the world is without Superman, Batman and Wonder Woman. The series establishes the existence of a new Multiverse.
One Year Later	2006	All DC comics jump forward in time to one year after the end of Infinite Crisis. Diana has a secret identity of Diana Prince and reclaims the Wonder Woman mantle, Bruce Wayne resumes as Batman, and Clark Kent gets his powers back and returns as Superman.
Amazons Attack	2007	Lead up with Wonder Woman v3 #6-8, Circe manipulates the Department of Metahuman Affairs and the Amazons after bringing Queen Hippolyta, Wonder Woman's mother, back from the dead that leads the Amazons to fight America and the country's heroes. The only way Wonder Woman could end this war, besides defeating Circe, is fighting her own mother.
Countdown (to Final Crisis)	2007	A weekly series that started a week following the end of 52, Countdown acts as the "spine" to the DC Universe that, as the name suggests, counts down to a new event for 2008. The series crosses over with certain titles and deals with Jimmy Olsen getting super powers, Mary Marvel trying to get her powers back, and a plot with the Monitors that involves the new Multiverse and the three characters that were supposed to die in Infinite Crisis: Jason Todd, Donna Troy, & Kyle Rayner.
Final Crisis	2008	The event that started at the conclusion of Countdown. Started May 2008. Batman is apparently killed by Darkseid in this event. In reality, he is trapped in the past, where he witnessed Anthro's death. The Martian Manhunter is murdered by Libra and the new Secret Society of Supervillains. Barry Allen, who died in Crisis on Infinite Earths, returns to life in this event.
Blackest Night	2009	An all out war between the living heroes and villains and the Black Lantern Corps and the DC Universe stemming from the war of light.
Brightest Day	2010	The events immediately following the final moments of the Blackest Night.
Batman: The Return of Bruce Wayne	2010	Bruce Wayne returns to present-day Gotham City after the events of Final Crisis.
Flashpoint	2011	Everything will change in a Flash.
The New 52	2011-	After the events of Flashpoint the DC Universe is rebooted