The PC version of Alone in the Dark is protected using SecuROM online activation. This requires that in addition to the content on the game disk, players download an additional component via an internet connection in order to install and run the game. Once the game has been correctly installed and activated, it can be played whilst offline.
To install the game on a different computer, players must revoke the serial number when uninstalling from the first machine (this is an automatic option during the uninstall process).
So you have been warned ahead of time. As far as system requirements they are about as expected with a Pentium 4 .2.8 Ghz or Athlon X2 +3800 as listed as minimal processors, 1 GB of memory, 9.5 GB of hard drive space and and NVIDIA GeForce 7600 or ATI Radeon X1950 as the miminal graphics card. It looks like the game won't be using DirectX10 at all; DirectX9 is all that is listed.