So I haven't spent too much time with it because I've been so darn busy lately, but I picked up this game on clearance last week. It was very highly-regarded by reviewers (despite being published by THQ) and had a premise that sounded interesting to me, so I picked it up. (Note--I guess several team members that worked on S.T.A.L.K.E.R.--Shadows of Chernobyl worked on this game. I'd love to try the former, but I don't have a gaming PC!)
It's great! I can't say much about the gameplay other than that it's a totally adequate 1st persion shooter, but the backstory and environment is where it really shines. It's based on a Russian novel that takes place in post-nuclear apocalypse Moscow, where the only people who survived the blast and the fallout moved into the metro tunnels. People can't survive on the surface anymore because of all the radiation so there are multiple colonies living in the tunnels. The game does a fantastic job to showing what life is like in the tunnels, and it reminds me Bioshock in that you're observing how an isolated society functions. The only difference is that in Metro 2033, people are still living there functionally, and it's crowded and crammed.
Anyway, from what I've played so far, this is turning out to be a pretty great game, worthy of discussion. Has anybody else here tried it? What did you think?