Andrew Liptak from
The Verge responded with enthusiasm to Titan Books' December 2016 announcement about the involvement of Jemisin and Valente with the book series, claiming that it felt "like
Isaac Asimov or
Arthur C. Clarke coming down from the mountain to write a
Star Wars novel". Liptak noted that Jemisin won the 2015 Hugo Award for Best Novel for
The Fifth Season while Valente is a multi-award-winning author who won acclaim for her
Fairyland series, and that these "authors could add a new flavor to the next
Mass Effect novels".
Nexus Uprising met with varying reviews. Matt Heywood was of the view that as a tie-in novel,
Nexus Uprising competently added more understanding to the plot of
Andromeda, as it fleshes out the events that took place prior to the events of the game. While he considered it a mandatory read for players, he felt that it is also an entertaining sci-fi book for science fiction enthusiasts who are unfamiliar or indifferent to the video game series. Keri Honea from
Playstation Lifestyle thoroughly enjoyed the book, and expressed a bewilderment as to "why the game wasn’t written half this well". Brendan Lowry from
Windows Central said he liked the book due to its unique premise, noting that "this survival type of story is something that hasn't really been explored with
Mass Effect before". He considered
Nexus Uprising to be a good prequel to the video game, and also explains why the Nexus ended up in its run down state when encountered in the game. Sci-Fi & Scary scored the novel 3 out of 5 Stars, concluding that it was a good book which fell short of greatness, and the authors did a solid effort of making the extensive cast of characters "distinct from each other".
Black Girl Nerds scored the novel 3.5 out of 5 Stars, praising it as a worthwhile read but criticized the dull, slow pace of the middle chapters as its main weakness. Jacek "Pottero” Stankiewicz from the
Polish website
Nerdheim scored the book 6 out of 10. Liz Bourke from
Tor.com praised the authors of
Initiation for writing a fun book which has the feel of the original
Mass Effect trilogy, noting that it is more light-hearted in tone than co-author Jemisin’s original solo work. She praised the novel for being "fast-paced and full of action", and that it successfully maintains its tension throughout the narrative. Bourke found the novel's version of Cora Harper to be a recognizable version of the video game character, but one who's more fully-fleshed-out. She compared the
Andromeda book series favorably to previous novel tie-ins, which she considered have failed to live up to the standards of excellence set by the original trilogy. Luke K from
Critical Gamer found
Initiation to be much more enjoyable then the game it is supposed to serve as a tie-in prequel to, noting that the reader does not need to be familiar with any other works from the
Mass Effect franchise to understand or appreciate the novel. He considered the novel to be "definitive proof that a story told in this universe without player agency can most certainly work", and that Cora comes across as a likeable protagonist though her video game iteration is noted as a divisive character among players. Merrin from
Speculative Chic praised
Initiation as an unusual tie-in novel which is well-written and engaging, and opined that Jemisin was more competent at fleshing out character motivations and backstory then the game's writers. She was impressed by Jemisin's ability to add depth to Cora's characterization, and address plot holes from
Mass Effect 3 and
Andromeda within the constraints of a shorter novel. Liz Bourke from
Tor.com praised
Annihilation as a "fast, tense, deeply enjoyable novel in a space opera setting", and its author for having a "deft touch with characterisation, giving us people who aren’t types, but who have interesting relationships to whole cultures that in the games are mostly glimpsed only in passing". She commented that Valente "expertly manipulates pacing and tension", so that the narrative's combination of "
buddy-cop dynamics,
murder mystery,
investigative thriller, and unfolding disaster story comes together into a smooth and riveting whole". She felt the "conclusion to the plague problem feels a little rushed, but the character work is on point and full of feeling", and that Valente should write more material in the
Mass Effect universe. Patrick Sklar from
TheGamer scored the book 4.5 out of 5 stars, noting that the narrative's three story arcs are all wrapped up neatly by the author and that each conclusion was satisfying to various degrees. He singled out Yorrik as an "absolute delight" given his amusing speech patterns, and considered him to be the best elcor character the franchise has ever seen. He concluded that it will satisfy fans of the
Mass Effect franchise but is not easily recommendable as an entrance for newcomers to the lore of the series. Julian Benson from
PCGamesN commented that "all the missing races being off on a different ship bears more than a passing resemblance to a story from
The Hitchhiker’s Guide to the Galaxy: Golgafrinchan Ark Fleet Ship B". ==References==