The job he reluctantly signed up for is to be "expendable", undertaking all of the most dangerous tasks necessary for a mission to colonize the ice world Niflheim.

Discussing the background of the novel, Ashton said: "I wrote a short story a number of years ago that explored...a sort of crappy immortality....

[5] Writing for Locus, Gabino Iglesias called the book a "multilayered, wildly entertaining story" and wrote, Mickey7 has something for everyone while also putting a fresh spin on the idea of clones.

"[6] Writing for Transfer Orbit, Andrew Liptak praised it as a "fun sci-fi romp, part Andy Weir's The Martian and John Scalzi's Old Man's War and Sue Burke's Semiosis.

[1] The book is being adapted into a film directed and written by Bong Joon-ho and starring Robert Pattinson as Mickey, Steven Yeun, Toni Collette, Naomi Ackie and Mark Ruffalo.