Do steam games still run in only 32bit ??

[chaparral]

I remember most or all of the games on steam use to only run the 32bit version...

Is this still the case now ??

 

[AWPC]

AFAIK pretty much unless the game is written for 64 bit most still have the same 32bit limitations they run under the WoW 64 emulator.
http://en.wikipedia.org/wiki/WoW64