I don't offer a 64 bit Windows build, but the 32 bit version should work fine on any 64 bit system.
Try running the EXE from the command line, that will probably at least print some sort of error to clarify what's happening.
still haven't had any luck. a new window opens and then immediately closes. if I run in itch it logs this as having successfully run. it seems to close immediately for some reason.