Disgaea 3: Absence of Justice [BLUS30181]

There appears to be support for more cores.
I'm doing 92% on my E5520's @2.26 with HT off.
in game ~1.0fps

Has any gotten it to utilize more than 8 real cores?

You have 2 E5520's? Nice. But why is HT off? I am sure Windows will prioritize things properly, and firstly use the 8 real cores as usual, then run two threads per core (HT). Well, in theory. But you can still turn it on and see how many "cores" it uses, out of the 16 available, regardless of performance. On my 4C, 8T, i7 I still see > 95 % load in Disgaea 3.

Also, wow! You broke 1 fps, congrats! Now I can't wait for 8 cores Haswell E...