IN THE MULTIVERSITY MAP, THERE IS ONLY ONE DARKSEID
From a thread on Quora, there is an explanation about the Multiversity map:
Darkseid is a Multiversal being.
In DC Comics the Multiverse is made up of spheres.
The center of the Multiverse is the Rock of Eternity (nexus of all magic in the Multiverse) and the House of Heroes.
Then we got the Bleed. The Bleed is split between two layers. Upper and lower.
In the Upper layer you got the 52 Main Universes.
In the Lower layer you got a near infinite number of universes. Each universe exploring all the timelines that could were, could be, and still can be. So a really unimaginable number of universes.
The Barrier that splits all those Universes from the Sphere of the Gods (where Darkseid lives) is the Speed Force. The Sphere of the Gods envelopes all those universes I mentioned before.
And for those gods a universe can be as big as a sphere you can hold in your hand, or a bubble you can pop.
Above that Sphere theres the Monitor Sphere, home of the Prime Monitor that is the one that decides which universe is risen to the upper layer of the Bleed, when a main universe is destroyed.-Is Darkseid a multiversal being (one being existing in all multiverses at the same time) or a single being who has different versions of himself throughout the multiverse?, Quora
In ‘New Gods’ (1997) #15, Darkseid and Highfather are trapped on the Source Wall. In order to communicate with Vykin the Black, Darkseid sends an avatar of himself. Each avatar possesses a fraction of Darkseid’s nigh-infinite power.
SPHERE OF THE GODS
Because Darkseid lives in the Sphere of the Gods, beyond the DC multiverse, there is only one true form Darkseid.
Though since Final Crisis, there have been multiple origins of Darkseid when the multiverse was reborn, the other versions of Darkseid that have entered the DC multiverse, are merely avatars. In “What is Darkseid’s True Form?”, Fiction Horizon goes over the concept of avatars.
In The Multiversity Guidebook, the Highfather, also a New God and Darkseid’s brother, states that each reality – past, present and future – has its own version (avatar) of Darkseid. This means that Darkseid is actually an omnipresent, non-corporeal being fragmented so that he can be present in every possible reality.
As far as we know, only actual multiversal deities (The Presence in DC Comics and The One Above All in Marvel) and Dr. Manhattan have these abilities, which would put Darkseid – his true form, that is – very high on the list of the most powerful beings in the history of comic books.
DOOMSDAY AND SUPERMAN HAVE DEFEATED AVATARS OF DARKSEID
‘SUPERMAN/DOOMSDAY: HUNTER/PREY’ (1994) #1
In ‘Superman/Doomsday: Hunter/Prey’ (1994) #1, Cyborg Superman guides Doomsday to Apokolips who arrives by cargo ship.
Programmed by Cyborg Superman, Doomsday destroys Apokolips’ army. Eventually, Darkseid must take direct action and intervene.
During the battle, Doomsday delivers a painful beatdown on Apokolips’ monarch.
Though there is debate that the Darkseid version Doomsday defeated was an avatar, writer Dan Jurgens seemed to confirm otherwise.
‘SUPERMAN/BATMAN’ (2004) #3
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TRUE FORM DARKSEID CAN DESTROY THE DC MULTIVERSE
“Final Crisis” reveals true form Darkseid. At the end of “Death of the New Gods”, the battle between New Genesis and Apokolips invades Heaven. Evil wins the battle, Darkseid armed with the Anti-Life Equation and the New Gods fall to Earth.
Known as Boss Dark Side of the Dark Side Club, he orchestrates the ALE going live on the Internet creating a singularity that threatens to send New Earth to Hell, dragged the whole DC multiverse past, present and future with it.
What the storyline shows is that true form Darkseid is a concept of pure Evil, the God of Evil, that threatens to destroy the DC multiverse. So what is true form Darkseid? True form Darkseid is the Anti-Life Equation erasing free will from the DC multiverse.
TRUE FORM DARKSEID IMPOSES THE ALE ON NEW EARTH
At Bludhaven, true form Darkseid is finally triumphant! With a half of the human population under his control, he has imposed the ALE on Earth.
As the Doomsday Singularity drags Earth to Hell the Fifth World is finally born.
TRUE FORM DARKSEID DESTROYS THE ENTIRE DC MULTIVERSE
True form Darkseid is a Multiversal Level threat. In ‘Final Crisis’ (2009) #7, true form Darkseid destroyed the entire DC multiverse past, present and future.
As the Doomsday Singularity drags the Earths to Hell, the heroes work on the JLA Watchtower on the construction of the 31st century Miracle Machine.
Indeed, it is the only weapon capable to reverse the effects of the Anti-Life Equation and restore the DC multiverse.