I love the Valespian Pact series ( can't wait for Bespoken ) by Lexi Ander, the Galactic conspiracies by Rob Colton, Saving Caeorleia series by Alicia Nordwell, the ESTO universe by Angel Martinez, and of course the Claimings series by Lyn Gala

[Fizban]

Well, I'd have to say my favorite is J.L. Langley's Sci-Regency series. I think it's great because it combines one of my favorite historical fiction genres with a reasonable reason for it to be an openly M/M society in this particular situation. I can't wait for book 4, which I understand is currently in the works.

I also highly recommend Belinda McBride's Uncommon Wh*re series. There's currently 3 books in that with a couple of related books - one M/M and one M/F.

[Weelee]

My Favs are:
Brooklyn Sinners series by Avril Ashton

Mother Earth by Ally Blue
Bay City Paranormal Investigations by Ally Blue
Hellscape by Ally Blue


Fatefully Yours series by Gabrielle Evans (Was my First series read)
and of course the Brac Pack and spin-offs (another intro to the world of MM

Chaos Station by Jenn Burke.

[Soire]

Sci-Fi/Space-Opera:
Feral Machines by Ginn Hale
Chaos Station by Jenn Burke

Sci-Fi/Post-Apocalyptic/Slash-Fic:
In The Company of Shadows (IcOS) by Santino (Hassel) & Ais -> After Midnight (spinoff) by Santino Hassel
Where there is Smoke by Cari Z
The Long Fall of Night by A.J. Rose (this is not strictly Sci-Fi but an impressive realistic post-apocalyptic scenario)

Sci-Fi/Fantasy/Paranormal:
Angels of the Deep by Kirby Crow
SPECTR srs by Jordan L. Hawk
[German] 3517 Anno Domini: Wir waren Götter by Raik Thorstad

Dark/High Fantasy/Mythology
The Relics of Gods srs by Yeyu
[German] Zenjanischer Lotus by Raik Thorstad
The Rifter srs by Ginn Hale
Wolf's Own srs by Carole Cummings
Dreams of Fire and Gods trilogy by James Erich

[angelfire79]

Turbulence by Lynn Gala
Line and Orbit by sunny moraine
A solid core of alpha by Amy lane
Dark space by Lisa Henry

But my all time favourite has to be ICOS (In The Company of Shadows) by Santino Hassel & Ais anything set in this world is a must read the world building and in depth characters are amazing

OMG Mel Keegan's NARC series and Hellgate series are amazing sci-fi stories

[lace30]

-The Others Project by Adrienne Wilder -Chronicles of the Shifter Directive by Scarlet Hyacinth (not sure if this can be considered Sci-fi though)
-Sumeria's Sons by Lexi Ander
-Hachti Warriors by Anya Byrne
-Lynn Hagen & Stormy Glenn's Sci-fi MM books

Tom Early - Aspect of Winter
Jenn Burke - Chaos Station series
Talya Andor - Signal to Noise
Sunny Moraine - Line and Orbit
Lia Cooper - Blood and Bone series
James Crawford - Leech series
X Aratare - Ghost
Scott Tracey - Witch Eyes
KJ Charles - A Charm of Magpies series
Lexi Ander - Sumerias Sons series
Lisa Henry - Dark Space
Jordan L Hawk - SPECTR series
Jordan L. Hawk - Whyborne & Griffin series
Carole Cummings - Wolf's Own series
Ginn Hale - Lord of the White Hell
Daniel A Kaine - Dawn of Darkness
Lissa Kasey - Dominion series
Derekica Snake - Lord Emperor series
Mary Calmes - Reah series
Becca Abbott - Reifu Rising
Jordan Castillo Price - PsyCop series
Alicia Nordwell - The Experiment

[RavenT]

I have to admit--for sci-fi M/M I usually read fanfic of series and movies I like. Commercial M/M sci-fi hasn't been as good at satisfying the sci-fi part as the M/M part. For fantasy it's generally good.

http://www.archiveofourown.org is my fanfic well of goodness.

I find it difficult to distinguish SF from fantasy in the MM genre, but here goes, most but not all discovered here

* Bone Rider by Fally (I went on to buy another book by this author which I quickly abandoned - a common experience for me)
* Happy Snack by Nicole Kimberling
* Tales of Nevèrÿon and Stars in My Pocket like Grains of Sand by Samuel R. Delany (I first bought them as mm pb, then trade pb (Tales only), then epubs)
* Converge series by Chris Owen
* Into the Divide by Sandra Bard (I've just finished the first one, can't say about the others in the series)
* Fighting Gravity by Leah Petersen (haven't read the sequel, buried under all the other new books: so many books, so little time - and still I reread quite a lot)

Seeing a post under mine: I do love the Psycop series, but classify it as fantasy where I have many more favorites.

[Weelee]

A Post Apocalyptic series: Immemorial Year series by T J Klune

Just finished book #2 waiting on the next book ......

Really got to read it ...thought it may be another gory, sex bound series BUT no!!!! was very pleasantly surprised ...minimum sex and quite a good story line .... heaps of gory angst ...but good reading


Withered + Sere (Immemorial Year, #1)

Crisped + Sere (Immemorial Year, #2)

[Soire]

The Abyss #1-3 by X. Aratare (Raythe Reign) online serial

This series I enjoyed very much and mutated quickly to one of my all-time favorites. A mix of scifi, space, technology (not the invincible kind) and vampire, but not quite your usual one. It's yaoi - illustrated - but with a strong, nicely paced plot, fleshed out characters and worldbuilding that supports the story subtly. And really a minimum of sex considering the genre. Only once I actually had to pause and ask myself how a certain side-character came to know one of the main figures within a few days like a friend of several years, and suddenly was 'family'. The serial has not been edited or proofread but I feel the story well worth the inconvenience. And the costs of 10 bucks for a 1 month membership

The Experiment by Alicia Nordwell
Breeding Stations by Chris T. Kat
Dark Space by Lisa Henry

Valespian Pact series by Lexi Ander
Infinitum Government by Megan Derr
Regelence series by Langley, J.L
Ai no Kusabi by Yoshihara Reiko