Metro 2033 (awsome game) which ending is cannon?

[I Fiend I]

Spoiler: click me then

I could tell you, but why would I? Just read the book. You'll appreciate dear Artyom even more after that.

does he speak in the book or just narrate again?

It's a book.

Of course he speaks

Just as with the game, the whole story follows him on his path through the Metro---and trust me, while the game is incredible (I love it to bits), the book is even more so. Though that is a rule hardly ever proven wrong: Books will beat the visual media that are born from them.

what about the god father
book: kinda sucks
movie: classic

book kinda sucks? wow, what are you on about.