The game itself is more addicting and immersive than any of its predecessors and its reviews confirm that. The same, unfortunately, cannot be said about Bethesda Softworks' latest immersive RPG: Oblivion.
One GPU generation later and the worries about performance under Doom 3 and Half Life 2 were yesterday's news.
Much to our surprise, especially given the performance hype that had preceeded both of them, both games ran relatively well on most mainstream hardware that was available at the time. When both Doom 3 and Half Life 2 came out we burned the midnight oil trying to put together guides for CPU and GPU performance in the games as soon as they were released.