Freetortion PlugIns are available in 64 bit on Mac OS X

Included PlugIns:

• Volume I - Red Skull Distortion
• Volume II - Fuzz-Stone Distortion
• Volume III - Fuzz-Stone[Ge] Distortion
• Volume IV - Whamdrive Distortion
• Volume V - California Sun Distortion
• Volume VI - EddieVsHeaven

Freetortion Series, a collection of free effect plug-ins for
Windows and Mac.
The Freetortion Series includes Red Skull (high-gain distortion),
Fuzz-Stone ('60's styled guitar fuzz tone),
Fuzz-Tone[Ge] (Fuzz style Germanium transistor distortion),
Whamdrive (shift the pitch),
California Sun (guitar combo amplifier),
and EddieVsHeaven (complete guitar rig in a stompbox).

The MAC OS X installer installs both Audio Unit and VST plugins which are capable of 32 or 64 bit.