Art Money For Mac
Hey, there are a few things out for Mac right now. The Cheat is the best memory editing / game hacking tool out there for Mac (that I know of) at the moment.
Artmoney Download For Mac
Here is a link to the program as well as source: Not too long ago I wrote a simple memory accessing template as an XCode project. Its using the read and write functions from The Cheat, but you could pretty easily write your own.
Artmoney For Mac
More or less your using the vmwrite and vmreadoverwrite functions that are defined in the mach header files mach/vmmap.h or mach/vmregion.h. Here's a quick upload of the memory accessing template: Read through the readme, if your on an Intel based mac then you will need to run a command through terminal to set the kernel's vm protection to allow reading / writing to memory.