Resident Evil: Operation Raccoon City certainly isn't Left 4 Dead, but I wouldn't blame you for confusing the two. ORC is, after all, a four player co-op zombie shooter, featuring a variety of zombie types that largely resemble what both Left 4 Dead games featured before it (a large tank-like zombie, a zombie who scurries on the ceiling and reels you in with his tongue, etc.).

In fact, other than a third-person perspective and a Resident Evil landmark setting, I was getting some serious déja vu playing ORC. Except for one crucial point: it wasn't quite as fun as Left 4 Dead.