Korman itself is completely agnostic as far as 32-bit or 64-bit goes, and it is not that difficult to produce a working 64-bit build of Korman. The main reason that no public x64 build is available for Windows is because of the way MOUL exports are currently handled. The MOUL engine expects for all colliders to be exported in PhysX's special cooked format. So, Korman has to include PhysX for MOUL builds currently. Unfortunately, PhysX 2.6 is only 32-bit. Future work on the MOUL engine is to include an agnostic format and cook the PhysX data on-the-fly.