This 13 minutes of gameplay was shown during PAX 2012. In this section of the game, Lara is going to look for signs of other survivors of the wreck. This video is recorded, so it doesn't look as polished as the game actually does, still, it's looking amazing.

Yeah we saw this at E3 in a private room. Actually we saw roughly 45 minutes worth. Looks good doesn't it?

It looks fantastic. You can really see the attention to detail.

So the PC version is going to be download-only? That seems like an odd thing to do for a major release, but I guess PC retail copies aren't selling as well as they used to. Although I prefer to buy retail copies of the games I really love, most of my game library is digital now, and as long as they release it on Steam I'll be happy.