Summary: Have been trying to get this to work since 2 Jan 13. Steam personnel, when they finally answered, 8 days later on 10 Jan 13, sent me through a series of checks over the next four days that lead me to discover that the program blocks any computer with a C++ program NEWER than 2010 original version..
Pros: Don't know--can't get it to load; neither can Steam personnel.
Cons: Can't get it to load, keep getting runaround by Steam (mandatory online linkage).
Summary: Agree that if you have, or can get ahold of, the original Doom 3 this is a waste of money. Steam DRM locks the game to your account so you can't resale it. The PC graphics aren't upgraded that I can see. Some of the game play is different and less challenging then I remember. The Lost Mission is OK, but nothing really new. The biggest problem I have with this is you can't use any of the mods/maps that have been developed over the years.
Summary: I was so excited to be able to pre-order this game as I thought it would be great. Found out it was just the same old game in a new package with one little new level. Does work in Eyefinity Mode.
Still waiting for it to down load, an hour and half I will not get back.
9 November 2013
Summary: If it had informed that it was a link to down load the I would not have purchased, I would have thought that being on a DVD disc that the game was on the disc as link could have easily been put onto a small cd. Still an hour and a half of my life wasted Why did not steam inform the buyers that the game was not on the dvd but just a link and a licence number. I'm so shafted......
Pros: None as yet as I'm still waiting for the game to download.
Cons: Thought I was buying a game but just got a web link and a licence number
Summary: If you want to play the game that defined the entire FPS genre, here it is in it's complete package. The games have a very unique feel to each of them, and I recommend you buy this for 1 and 2, 3 being a bonus.