Do no, I repeat, DO NOT purchase this game if you have a dual core CPU.
User Rating: 1 | Advent Rising PC
If you do you will find that you're practically unable to play the game due to it somehow being incompatible with more recent CPU's, making the game run at approximately 20 times the intended speed. And no I'm not talking about frames per second. Gideon will teleport across a room in a split second when you press the movement keys, making it nearly impossible to play the game. There's no real support for the game either so this issue won't ever be fixed.
You can turn the additional core(s) off for the advent.exe application using task manager, but in my case that resulted in the game running in slow motion instead. It's playable, but extremely sluggish and annoying.
You also can't change the resolution to anything above 800x600, so the game also looks like a mess. But I guess that would be a minor issue... 
