Top Ten Most Powerful Fictional Universes
Basically measuring how powerful the characters, technology, organizations, etc. are in a given universe.And at number 1 we have the ridiculously overpowered but also ridiculously vague because that's just how HP Lovecraft rolls fictional universe know as the Cthulhu Mythos! Not only are there Outerversal characters, because I know lots of people are thinking "Well there's Outerversal characters also in a lot of other universes", but they have an infinite amount of Outerversal characters. Honestly, just one of these guys can destroy the entire Marvel and DC multiverse except for maybe the more powerful characters like the One Above All or the Presence. I may be biased, considering it's one of my favorite universes, what with such colorful characters like the ever so cheerful Nyarlathotep or the very humurous Yog-sothoth, but pretty much anyone would tell you that this Universe stands above all else as the most powerful.
When you are an immortal god-demon that can cause a planets population to go mad at just a glimpse of your terrifying figure... You probably are the most power thing in existence. Worried you might live near Cthulhu? Fear not, because you may never know. He may be laying dormant and controlling peoples minds while they sleep. Its no big deal. (About Cthulhu, not even the most powerful of the gods.)
An infinite number of increasingly powerful gods, who don't adhere to concepts such as time, space or reality. Also, alien species such as the Great Race of Yith have mentioned transferring consciousness across space and time. We have a clear winner.
Azathoth essentially dreams all of creation, basically meaning that anyone Omnipotent in another fictional reality is really just Omnipotent in Azathoth's dream, which would make Azathoth above everything. So, H.P. Lovecraft's world truly is the ultimate.
It seems most fictional multiverses have their own omnipotent characters, but marvel has many characters that are just shy of being omnipotent. Even lovecraftian lore hasn't shown to be as insane when it comes to the capabilities of their gods and abstract horrors. And honestly, just saying your character can destroy all of fiction doesn't mean much when in marvel there are characters who embody nothingness and the concept of nothingness.
Characters such as Living Tribunal, pre-recton Beyonder, Eternity, Thanos (with the Infinity Gauntlet), and Odin put this on the list.
Cthulhu mythos is the most powerful universe ever!
Isn't it just Earth but with superheroes/villains?
Everyone's wrong when it comes to the Marvel Universe being stronger. Yes, they might have the Living Tribunal, which is supposed to be the final say in any matter, but that is nothing compared to the power DC has because they have Dr. Fate who can literally do anything. He can change the fate of anything. I know Domino and Scarlet Witch have the power to manipulate chance, but they weren't given their powers by literal gods from all of space and time. Another point to make is that DC also has the Phantom Stranger and the Presence, who are believed to be actual manifestations. They also have the Spectre, who drew in a fight against Mr. Mxyzptlk, described to be from the 5th dimension (basically able to make anything happen with the click of his fingers). And lastly, there's Batman, who could probably take on 75% of the Marvel Universe anyway.
See Spectre, Superman (with Cosmic Armor), and other similarly godlike characters. Basically tied with Marvel.
DC is so far above marvel in power it's not even funny. Darkseid almost destroyed the multiverse BY ACCIDENT!
I would tie this with Marvel.

Fully optimized third edition, plus using rules as written, plus a very lenient DM? Recipe for the Mighty One.
It's all 4chan's fault. Look up Pun-Pun, the most powerful character possible.
Tengen Toppa Gurren Lagann on steroids.
Unimaginably powerful monsters, characters who can destroy multiverses, and a massive amount of characters who can destroy planets.
Lord english is so powerful that he killed andrew hussie the author of mspa/homestuck.
Space gods (see Q), utopian society, and weapon technology that goes further than lasers.

Time Lords wrote the laws of physics, and the Daleks nearly destroyed the multiverse.
Crazy powerful gods like the scarlet king, op monsters like 682, and lots of technology that can turn the universe and maybe the multiverse into a plane of nonexistence.
If every Scp entry is real in their universe, Scp has some of the higest potential of any universe.
With only a few niche exceptions.
Reality benders , cosmic gods , narrative manipulators , multiversal aliens , ascended organisations that play with reality space and time and thousands of other things...no wonder it is one of the most powerful fictional settings ever conceived.
Got a lot of potential and could be stronger than others above on this list.

First of all even if you are immortal goku at his full potential coul punch these guys hard enough so the explode, but even if that doesn't work, Zeno can not be beaten by anyone or anything. So he could destroy all these guys in 3 seconds, and if they tried to erase someone from existence by killing the past goku or Zeno they wouldn't get erased a , new timeline would just open up as stated in dbz by future trunks. So no one could beat the omni king grand Zeno which in term would mean knowone or anything can beat the dbz universe.
Come on guys we all know Goku is flexing the Cthulhu Mythos out of existence. Hit him with a ultimate gin ki dama. He has Mastered Ultra Instinct and has achieved what people call "irrelevant speed" meaning that he's so fast your argument of someone being faster doesn't matter because he moves autonomously. So strong he's backhanding time and space. Burning hope in reality with his glare.
At this point, even minor characters (for an example Krillin and Tien) are capable of destroying planets. Goku and Vegeta are capable of destroying multiple universes, and they aren't even the strongest in the series. Far from it.
Strong, beings check. Can destroy universes, check.
40k is insanely op, and the only way one faction isn't op is because all the other factions are op, and almost all except the Tau could destroy most things in any universe.
The Strongest being in the 41st millennium is Khorne and he can Kill ANYTHING in the Cthulhu Mythos besides Azatoth. Nothing can kill Azatoth besides another Azatoth.
I don't know much, but I know enough to know how imensly op warhammer 40k can be.
They destroy planets on a regular basis.
A mecha the size of the universe that throws galaxies like they're shurikens.
Pokemon is honestly more powerful than any other universe on this list. Arceus is a being who created all of reality. He is transcendent over all of existence. He can wipe anything from existence, or change reality so that you longer have your powers. Mewtwo can just take over your mind and make you serve him. Or wipe your memories, and change them so that you don't know you have powers and/or don't know how to use them.
Arceus and the Creation Trio have immense powers of creation. The only reason they're not higher is because Giratina seems to be the only one with destructive power.
Arceus Judgement enough said
Not enough? Elemental immunity to everything, if there is a type its therefore immune
A well balanced team with a thought out strategy easily takes out any opposers.
I'm a star wars fan and haven't watch STAR wars for a year well the characters are very powerful in the sacred fulfilled layers of the force, but the civilization has collapsed through unexpected chaos by Palpatine which creates the the order 66th Which the weak minded being who spoiled protection was Jar Jar Binks *Slow clapping* - Kevinsidis.
Force users are very powerful, but their civilizations are very weak overall, especially compared to Star Trek or Warhammer 40K.
Has more powerful characters than half of this list.

Tons of characters with conceptual powers. Yuyuko can manipulate death. Yukari can manipulate the boundaries between concepts. Remilia can control fate. There are many more examples.
Reimu's Fantasy Nature keeps Gensokyo the way it is and there are spell card rules to make sure people don't die. But if those weren't there then there's nothing stopping a powerful character from destroying everything.
Ben ten has Alien X,Atomics,Waybig,Humangasaur, etc. He alone is more powerful than most of the universes in this list. No need to mention about this.
Alien X. There, this is the real top spot taker


Man too angry to die, punched an embodiment of death because he could

I mean gold experience requiem is untouchable but made in heaven will just reset the other universes
Bowser tanked the galaxy reactor exploding, super dimentio was going to destroy all worlds, fawful and dark star where capable of cosmic destruction, I know mario being weak is a meme, but he's able to lift and throw castles, chain chomps, and survive briefly in lava, plus he has the star rod which is on the same tier as the infinity gauntlet.
Harry Potter is cool. They have magic. The people that hate HP are dumb. He can cast a spell on you to make you fly.