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Harry Potter and the Natural 20 by
Sir Poley reviews
Milo, a genre-savvy D&D Wizard and Adventurer Extraordinaire is forced to attend Hogwarts, and soon finds himself plunged into a new adventure of magic, mad old Wizards, metagaming, misunderstandings, and munchkinry. Updates monthly.
Crossover - Harry Potter & Dungeons and Dragons - Rated: T - English - Chapters: 74 - Words: 314,214 - Reviews: 6555 - Favs: 6,422 - Follows: 7,259 - Updated: 8/2/2018 - Published: 5/7/2012
Transcendent Humanity by
Solaris242 reviews
Humanity never developed FTL. The Prothean archives contained no technology, no Element Zero, just a warning. Isolated from the rest of the galaxy for two thousand years, restricted to their only system, how will humanity have changed when they first meet the Turians? AU, alternate history of humanity and First Contact.
Mass Effect - Rated: T - English - Sci-Fi - Chapters: 18 - Words: 40,604 - Reviews: 2082 - Favs: 6,469 - Follows: 7,482 - Updated: 3/1/2016 - Published: 5/7/2013
The Heavens Shall Tremble by
Full-Paragon reviews
Sequel to And the Meek Shall Inherit the Galaxy. On hiatus while author recovers from medical emergency.
Mass Effect - Rated: T - English - Sci-Fi/Horror - Chapters: 23 - Words: 95,248 - Reviews: 943 - Favs: 1,348 - Follows: 1,575 - Updated: 9/21/2015 - Published: 10/25/2013 - Garrus V., Liara T'Soni, Tali'Zorah, Shepard (M)
Harry Potter and the Methods of Rationality by
Less Wrong reviews
Petunia married a biochemist, and Harry grew up reading science and science fiction. Then came the Hogwarts letter, and a world of intriguing new possibilities to exploit. And new friends, like Hermione Granger, and Professor McGonagall, and Professor Quirrell... COMPLETE.
Harry Potter - Rated: T - English - Drama/Humor - Chapters: 122 - Words: 661,619 - Reviews: 35024 - Favs: 24,917 - Follows: 18,612 - Updated: 3/14/2015 - Published: 2/28/2010 - Harry P., Hermione G. - Complete
Mass Effect: The First War by
ProfFartBurger reviews
The Prothean Ruins weren't. They contained little more than mentionings of an Alien Society; as a result, humanity develops on a completely different path than what was intended, and when first contact is made not with the Turians, but a desperate, destitute race viewed as beggars and thieves, how will this dying race change Humanity? And how will Humanity change the Galaxy? *A/U!*
Mass Effect - Rated: T - English - Adventure/Sci-Fi - Chapters: 22 - Words: 200,906 - Reviews: 1851 - Favs: 3,533 - Follows: 2,575 - Updated: 1/12/2014 - Published: 1/26/2013 - OC - Complete
And the Meek Shall Inherit the Galaxy by
Full-Paragon reviews
Due to a shift in turian and quarian patrols, first contact for humanity is friendly; Rael'Zorah and Hannah Shepard become friends, as do their species. But the galaxy is not a safe place, and schisms develop when the Council steps in. As humanity finds new allies among the stars, something darker stirs. The Meek must beware, for it is nearly harvest time. AU, lots of worldbuilding
Mass Effect - Rated: T - English - Sci-Fi/Family - Chapters: 49 - Words: 232,286 - Reviews: 3722 - Favs: 3,279 - Follows: 2,449 - Updated: 11/16/2013 - Published: 3/31/2013 - Tali'Zorah, Shepard (M), Hannah S., Rael'Zorah - Complete
Ranger Harry by
Meteoricshipyards reviews
My 2010 Nanowrimo story. A crossover between Harry Potter and Advanced Dungeons and Dragons. Harry ends up in an ADnD world at a young age. Trained as a Ranger, when Dumbledore gets him back he's not a little boy any more.
Crossover - Harry Potter & Dungeons and Dragons - Rated: T - English - Adventure - Chapters: 10 - Words: 66,306 - Reviews: 707 - Favs: 1,946 - Follows: 2,170 - Updated: 8/20/2013 - Published: 11/1/2011 - N. Tonks