extraacco
PM . Follow . Favorite
Joined 12-03-14, id: 6322476
Sort: Category . Published . Updated . Title . Words . Chapters . Reviews . Status .

Psi Effect by Cap'n Chryssalid reviews
A fun-loving asari mercenary finds herself a little in over her head when she ends up abducted by terrifying aliens from beyond the galactic frontier. These asari-like creatures call themselves 'humans.' They seem to be secretly nosing about on the borders of known space, acting through proxies, conducting covert operations, and they've got a deal for an enterprising asari...
Crossover - X-Com & Mass Effect - Rated: T - English - Humor/Sci-Fi - Chapters: 43 - Words: 387,570 - Reviews: 1367 - Favs: 3,353 - Follows: 3,881 - Updated: 1/2/2018 - Published: 7/19/2014 - U. Wrex, Daro'Xen, Shepard (F), OC
Vigil by Peptuck reviews
Mankind has survived its crucible, and while scarred and changed by the Ethereals, they advance into the cosmos. The galaxy beyond is a place of wonder and terror, of wealth and strife. Amid the threats and opportunities, both within and without, XCOM remains vigilant. Mass Effect/XCOM/Eclipse Phase/FEAR/Destiny fusion.
Crossover - X-Com & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 18 - Words: 170,804 - Reviews: 427 - Favs: 955 - Follows: 1,048 - Updated: 9/14/2016 - Published: 9/2/2014
When Civilizations Meet by Generatedname reviews
The Ethereals, the Aquatoids, the Micronoids. Humanity has faced them all, and come out stronger. The Humans have left their world, exploring the stars, their technology built on Alien corpses. How will they react when they meet a peaceful society, one that is both advanced and primitive? ABANDONED, REWRITE IS UP UNDER THE TITLE 'THE HUMAN WAR!
Crossover - X-Com & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 17 - Words: 52,325 - Reviews: 334 - Favs: 741 - Follows: 852 - Updated: 3/29/2016 - Published: 5/11/2014 - OC
The Technological Assimilators by Knight in Blackest Armor reviews
With the technologies of several alien races at its disposal, humanity had undergone a technological revolution. It advanced at such a rapid pace, far exceeding many expectations. Soon however, the humans learned that they shared their galaxy with yet another group of sentient alien life, but to mankind's horror and confusion, these aliens were not the sort they expected at all.
Crossover - X-Com & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 5 - Words: 147,111 - Reviews: 230 - Favs: 819 - Follows: 1,102 - Updated: 9/5/2015 - Published: 3/20/2014
I Am Watchful I Am Necessary by BattleshipFusou reviews
Decades have past since the Ethereals threat was defeated and humanity has emerged united and stronger than ever for the conflict it faced. Now after discovering the Prothean Archives on Mars, humanity is about to end up on a much larger stage than it ever expected to play on when yet another alien threat comes knocking. And again, X-COM stands ready to fight. ON HIATUS
Crossover - X-Com & Mass Effect - Rated: T - English - Sci-Fi - Chapters: 9 - Words: 18,569 - Reviews: 378 - Favs: 821 - Follows: 1,113 - Updated: 2/25/2015 - Published: 9/30/2013 - Admiral Hackett
XCOM: Second Contact by Agayek reviews
With the destruction of the Temple Ship humanity knew peace. XCOM never forgot their motto however, 'always vigilant, always reliable'
Crossover - X-Com & Mass Effect - Rated: T - English - Sci-Fi/Adventure - Chapters: 26 - Words: 294,105 - Reviews: 1070 - Favs: 2,242 - Follows: 2,318 - Updated: 9/15/2013 - Published: 1/1/2013
XSGCOM: Mirror Image by Hotpoint reviews
Crossover between SG1 and XCOM. As Earth fights against two separate extraterrestrial threats the defenders join forces and the tables are turned.
Crossover - Stargate: SG-1 & X-Com - Rated: T - English - Adventure - Chapters: 52 - Words: 349,026 - Reviews: 787 - Favs: 1,031 - Follows: 563 - Updated: 12/30/2009 - Published: 7/2/2007 - Complete