Ben 10 and Mass Effect Crossovers
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Mass Effect: Ultimate Ally by Breakawayfan reviews
Four years after the Diagon was defeated, Ben receives an urgent mission from Professor Paradox and is sent to an alternate universe. However, things in this alternate universe are not what he is used to and he must learn to get used to it, especially over one important factor: his new teammates are all trained killers. BenXLiara, M!ShepXAshley.
Rated: T - English - Adventure/Romance - Chapters: 3 - Words: 26,758 - Reviews: 41 - Favs: 127 - Follows: 139 - Updated: 5/23 - Published: 10/31/2014 - [Liara T'Soni, Ben T.] Garrus V., Shepard (M)
The Hero Effect by Darth Terminus reviews
On a mission from Paradox, Ben Tennyson has crossed over into another universe. Now, he must work alongside Commander Shepard in order to save the galaxy from extinction, first from the Collectors, then the Reapers. Ben/Miranda, MShep/Liara, Garrus/Tali. Based on Judge Royce's story.
Rated: T - English - Adventure/Romance - Chapters: 6 - Words: 28,465 - Reviews: 136 - Favs: 253 - Follows: 290 - Updated: 1/19 - Published: 8/6/2014 - [Ben T., Miranda L.]
The Romance Effect by Darth Terminus reviews
Ben Tennyson has many female admirers, but none of them can compare to the ladies of this alternate reality. A series of one-shots pairing up our hero with Mass Effect girls.
Rated: T - English - Romance/Humor - Chapters: 3 - Words: 6,102 - Reviews: 32 - Favs: 74 - Follows: 69 - Updated: 1/1 - Published: 10/20/2014 - Ben T.
chapter 1 a new galaxy by spurlinpatricksean2 reviews
Ben Tennyson is sent on a mission to another galaxy by paradox to help a group lead by a person name commander Shepard save there galaxy from a machine race known as the reapers who are hell bent on there extermination can Ben and his new Friends save the galaxy or are they like all the the past cycles doomed from the start only time will tell.
Rated: T - English - Adventure/Romance - Chapters: 1 - Words: 5,293 - Reviews: 9 - Favs: 11 - Follows: 9 - Published: 12/4/2014
Ben 10: Omniharem Effect (Rewrite) by Rexfan1333 reviews
Ben Tennyson has fought all kinds of criminals in his life as a hero, but when Paradox sends him to Omega to meet a group of people that he has no idea about, can he help these heroes fight these evil threats to mankind and possibly build a harem of the most beautiful women in the galaxy? That's a new one. Rewrite. Ben X Harem and other pairings are also included.
Rated: T - English - Sci-Fi/Romance - Chapters: 2 - Words: 6,474 - Reviews: 24 - Favs: 129 - Follows: 128 - Updated: 8/30/2014 - Published: 8/6/2014 - Ben T.
Ben 10: Ultimate Effect by Judge Royce reviews
Ben Tennyson has done many amazing and impossible things during his hero career. But saving an alternate reality from a race of genocidal machines? That's a new one.
Rated: T - English - Adventure/Sci-Fi - Chapters: 9 - Words: 42,375 - Reviews: 289 - Favs: 471 - Follows: 487 - Updated: 2/15/2014 - Published: 3/2/2013 - Ben T.
Mass Effect: Alien Force by edboy4926 reviews
Shepard receives the unexpected help of two beings from another dimension. How will the arrival of the Tennysons affect the ME Universe? F-Shepard/Joker, Ben/Gwen
Rated: T - English - Adventure/Sci-Fi - Chapters: 2 - Words: 2,850 - Reviews: 20 - Favs: 35 - Follows: 45 - Updated: 6/22/2012 - Published: 5/6/2012 - [Ben T., Gwen T.] [Shepard (F), Joker]