Room simulation for non standard room shapes

That would be interesting to see if algorithms could calculate all the possibilities. My room is sorta like this:

| spkr spkr |
| |
| |
| |
| |
| |
| ------------------
| |
| |
| |
| _______________
| |
| |
| |
| ---|
| |
| |
| |
|------------------------|

32 feet deep, 12.5 ft wide at the speakers, with an alcove leading to stairs on the right side. I think having the speakers deep into the listening space gives me symmetry of sound but I have a 41 hz room resonance and other things going on that might be helped by more sophisticated software.

my picture is not coming out right, argh