Yes the build is 64bit, we don't support 32 bit machines.
Thank you Team Terrible sorry I didn't know if its support 64 bit because I use another window I used before windows 7 now I use windows 8.1 pro I think you have to put this game support 64bit, not 32 bit if somebody 32 bit knows because I download the game and my internet to refuel it I have to pay 200$ dollar and I use 32bit and I download it but it's not work I have to work many to refuel internet and will take time to reach 200$ dollar