Currently reading a few things, but really only focusing on getting these two finished.
I really liked the setting of Metro 2033 but felt like nothing really much happened in the first three quarters of the book aside from world building and faux-philosophical monologues from Artyom's traveling companions. The world building was great, the monologues not so much.
2034 seems like it's fixing that issue. I'm not super far into it,probably only a quarter of the way through so far, but things are actually happening. Whatever the thread with Sasha is seems interesting, Guessing she's probably Homer's daughter but who knows at this point, as Hunter probably isn't old enough to have an adult daughter and Homer's past is all still slowly being revealed. And having Homer, someone with more knowledge of the tunnels than Artyom, is a nice change.
I've never played either of the Metro games, but am definitely interested to see how they would have brought this world to life in them.
This is the other one. It's not the best written book in the world by any stretch, but I like roguelikes and it's interesting to read about what some of the founders of the genre have to say about what it was like to be developing them. A lot of the more specific computer science lingo and history is lost on me, but whatever.