Atari has stated its single-player adventure game Alone in the Dark will require an Internet connection for activation. Alone in the Dark will use SecuROM copy protection, making players download a one-time online component before they fully install the game. Afterwards, players will be able to play the game offline. An Internet connection isn't the only thing you will need to play the game; Atari has released minimum technical specifications for the PC version:
Operating System: Windows XP/Vista 32-bit & 64-bit
Processor: Intel Pentium 4 2.8 GHz or Athlon X2 +3800 (Intel Pentium 4 3.4 GHz or AMD Athlon 64 +4000 recommended)
Memory: 1 GB RAM (2GB recommended)
Hard Disk Space: 9.5 GB free
DVD-ROM Drive: 4X speed or faster
Video: NVIDIA GeForce 7600 or ATI Radeon X1950 or better (NVIDIA GeForce 7800 GTX or ATI Radeon X1950 XTX or better recommended)
Sound: DirectX version 9.0c-compatible sound card
DirectX: DirectX version 9.0c (included) or higher
source : www.ign.com