Which Dxd Fanfiction Explore Alternate Universe Settings?

Yeah, the AU scene is massive. I mostly look for ones that change a single pivotal moment and then let the dominoes fall. There's a classic where Issei never gets killed by Raynare, so he never gets resurrected by Rias. He just stays a oblivious pervert trying to get a date, while the supernatural world operates around him. The comedy and dramatic irony in those can be fantastic. Also, any fic that makes Asia the central figure of a different covenant, or explores a world where Sirzechs took a darker path, usually goes to some fascinating places. Just search 'AU' or 'alternate universe' on the big archives, you'll fall down a rabbit hole.

Anyone else kinda live for those 'what if' spins? The sheer volume of alternate universe stuff for 'High School DxD' is wild, and it's honestly where a lot of the most interesting stories happen. You've got the obvious high school swaps—Issei attending Kuoh as just a normal human, or maybe a teacher, while the supernatural stuff simmers in the background. Those can be fun slow-burns, but the real meat for me is when the entire power structure gets flipped.

Like, I stumbled across one a while back where the Great War ended differently and the Three Factions never formed the Alliance. Issei got caught up as a pawn in a cold war between Heaven and the Underworld, and the whole dynamic with Rias and the others was fraught with way more tension and political maneuvering. It wasn't about rating games; it was about survival and espionage. That kind of wholesale change to the world's rules completely alters every character's motivations and relationships, which feels fresh after you've read a hundred fics following the canon stations.

Then you have the really out-there crossovers that essentially function as AUs. Issei reborn into the world of 'Fate/stay night' as a Master or even a Servant? That's a full-blown alternate universe with its own logic. The author has to rebuild his place in that world from the ground up, which often leads to some clever power interactions and new rivalries. Those stories are a mixed bag for sure—some feel forced, but the good ones make you wish for an official spin-off.

Honestly, the more removed from the original setting, the more I tend to enjoy it. Modern no-magic AUs, historical fantasy AUs, even straight-up genre shifts into mystery or sci-fi. They force the characters to be defined by their core personalities rather than their canonical roles and powers, which can lead to some surprisingly sharp character studies. My bookmark folder is mostly that stuff now.