User blog comment:Draevan13/Hints that Metro Last Light's Redemption ending is cannon?/@comment-1600847-20160608010107/@comment-5818471-20160627072504

Well put, although it's definitely not as simple as "Atryom is going insane" (spoiler: he isn't, he's actually the only sane person in an insane world, that's why he is treated by everyone like a madman). I've actually just got round to reading Metro 2035 - it has been laying on my bookshelf for months now, but I didn't really have the time or will to get to it. Now I am glad that I did because it was a good read. I will update the novel's page here on the Wiki.