Here are my powers!Sam fic recs (wincest) (http://delicious.com/electricmonk/attribute%3Apowers%21sam+pairing%253Asam/dean), but not all are dark!Sam. I tend to stay clear of truly evil or dark sam. :)

Thanks, I'll check it out!

How about Centuries of stony sleep were vexed to nightmare (http://britomart-is.livejournal.com/108795.html) and it's sequel by a rocking cradle (http://britomart-is.livejournal.com/116976.html) both by britomart_is
Future!fic told from the point of view of an OFC; Sam is the Antichrist and needs a child to consolidate his position. Dean helps him audition the positive mothers, and generally looks after him.

Edited 2012-04-25 01:59 pm (UTC)

Here are some of my favorites:

Let Your Sins be Strong (That Crown Don’t Make You a Prince remix) (http://xzombiexkittenx.livejournal.com/133868.html) by xzombiexkittenx (which is a remix of A Sword and Shield Victorious (http://archiveofourown.org/works/185447) by dreamlittleyo)

Leader of the Pack (http://archiveofourown.org/works/2224) by astolat (It is more Powers!Sam than Dark!Sam, but it is definitely a great fic)

Old Country (http://archiveofourown.org/works/164479) by astolat (This is a brilliant SPN/HP crossover. "Dean Winchester is a Hufflepuff who thinks he's a Gryffindor, and Sam Winchester is a Slytherin who thinks he's a Ravenclaw. Discuss." Essentially Dean needs to stop Sam from becoming the next Dark Lord more or less)

Finders Keepers (The Sin Crouching at the Door Extended Remix) (http://archiveofourown.org/works/5672) by rivkat (which is a remix of In My Brother's Keeping (http://poisontaster.livejournal.com/332663.html) by poisontaster)

Captured by the Game (http://archiveofourown.org/works/1389) by rivkat

The Light of Munin (http://archiveofourown.org/works/180210/chapters/264948) by leonidaslion (Think cannon complicit Beauty and the Beast)

(This author also writes what is perhaps one of the darkest ongoing WIP Dark!Sam fics that I have ever encountered, the Suite!verse (http://archiveofourown.org/series/6436). It is still being written so I can't tell you if it has a happy ending (it may yet have a happy ending, although the definition of "happy" may be hugely skewed) and it is best read in small doses since it really does get THAT bleak and heavy)

The Incestuous Courtship of the AntiChrist's Bride (http://fleshflutter.livejournal.com/102268.html) by fleshflutter (This is a comedy, so it is not as dark as it can get with BoyKing!Sam, but it is a classic and a definite must read!)

(Some shorter ones by the same author as above that deal with AntiChrist!Sam in various ways)

I Feel Flames Again (http://fleshflutter.livejournal.com/104243.html) by fleshflutter

Drown and Float Away (http://fleshflutter.livejournal.com/22908.html) by fleshflutter

In the Valley of the Shadow (http://fleshflutter.livejournal.com/25778.html) by fleshflutter


I am sure I will come up with more...






Edited 2012-04-25 02:49 pm (UTC)

OMG I soooooooooooooooo second AntiChrist's Bride, and it's even better as a podfic off jinjurly's site.

This one really fits, I think:

And So Awakens Devils (http://concernedlily.livejournal.com/34347.html)

These ones are pretty short, but pretty much fit. I mean, I'm not sure how happy-endingish they are. Most of them have an evil Sam, and he stays evil, and in some of then you get the vibe that Dean is going kind of crazy. But nobody dies or anything, and the boys are still together:

...But a Whimper (http://fleshflutter.livejournal.com/944.html)

The Answers Don't Amount to Much (http://dreamlittleyo.livejournal.com/161031.html)

Bury My Old Soul, and Dance on its Grave (http://dreamlittleyo.livejournal.com/196918.html)

I hate people when they aren't polite (http://apocalypsos.livejournal.com/1208870.html)

Indigo Blooms in the Kingdom of Hesperus (http://archiveofourown.org/works/180206?view_adult=true) (This one doesn't really have a Dean going along with it—Sam wants him as a consort, and he kind of gets him, but there's brainwash involved. Also features non-con, so if that's not your thing, stay away.)