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One of the most direct adaptations from Lovecraft to Mass Effect was the Leviathan creature itself, as well as its backstory and abilities. While Mass Effect's Leviathan DLC was not trying to directly adapt a Lovecraftian story, it took many influences and used common themes from the 'canon' world of Lovecraft and its mythos. Lovecraft's tales and mythos have been adapted into many genres of games, with some being more faithful to the source material than others. The Leviathan DLC expanded on the ancient history of the Mass Effect galaxy, but also took much of its inspiration from Lovecraftian works. These creatures are revealed to be an ancient, subaquatic race called Leviathans that were the original apex species in the galaxy. The Leviathan story involves Shepard and their crew hunting for an ancient power that can supposedly defeat the Reapers. One of the more memorable DLCs from the series is Mass Effect 3's Leviathan DLC. The Mass Effect Legendary Edition has been an extreme success for BioWare and EA, and includes all Mass Effect games from the original trilogy and their complete DLCs.
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