Quote Originally Posted by Husar View Post
So where do I get 64bit copies of all my games?
And does it really matter if the games were designed in 32bit with the 2GB limit in mind?
Well, you don't necessarily need a 64bit app to benefit from a 64bit OS. If a 32bit app is large address aware, it can use up to 4GB of RAM in a 64bit OS. Under a 32bit OS the maximum large address aware app can utilize is 3GB- and that's only if you do the unsupported boot hacks that were discussed above.

Some games are starting to offer 64-bit versions though. Elemental, for one, is supposed to make a 64bit version available sometime after the game's initial release. The size of the game world is supposedly only limited by memory, and in Win7 64bit it could theoretically have up to 8TB allocated. (although Win7 itself "only" supports 192GB of physical RAM, so I guess 8TB would involve massive swapping... here's a handy chart.).