yes they are 64 capable, which means they will run in a 64 bit environment, but they are not native 64 bit games, otherwise you would have 2 launchers for them, very much like adobe c5 which has a 32 bit launcher which resides in your programme files x86 folder, and a 64 bit launcher which resides in your programme files folder, the same as your internet explorer which has 2 launchers one for 32 and one for 64, the executable has to be writen in 64 bit code to work in 64 bit which games simply do not at the moment because the majority of pc gamers are still on 32 bit platforms,