I like Alternate Universes in fanfic a lot, so I've collected recs for my favorites in this genre. I read gen, slash, and het in different fandoms, so you'll find all kinds of AUs recced here.
Within a fandom the recs are sorted by author, with new additions being marked. For TS the links are also sorted by the type of the AU (see sub-categories), but in the end I was too lazy to adopt that system for the other fandoms that have accumulated many entries. It is labelled whether something is gen, slash or het, but those are not separate sections. If you are interested in what I think works as AU and what doesn't, or what I count as AUs and what not, and a detailed explanation of what I see as sub-categories and why, you can read my thoughts on these subjects.
Some of my favorite AUs are WIPs, and some of them are probably likely to stay in that state, nevertheless I will also rec those. While I'm not particularly bothered by reading unfinished stuff, I know other people don't like doing that, so I'll indicate in the rec if it's still unfinished.
[Andromeda] [Avatar the Last Airbender] [Babylon 5] [Buffy/Angel] [DC Universe] [Due South] [Eagle of the Ninth] [Farscape] [Harry Potter] [Highlander] [Lord of the Rings] [Merlin] [Multifandom] [Numb3rs] [Roswell] [Sanctuary] [The Sentinel] [Sherlock] [Smallville] [Stargate: Atlantis] [Star Trek: Reboot] [Star Trek: TOS] [Star Wars] [Suits] [Supernatural] [White Collar] [The X-Files] [X-Men]
Just fixed a lot of link rot. No new updates yet.