Looks promising, though there seems to be a fair number of bugs to iron out.
* Frequent crashes (segfault) on area transition (also, for me - always when attempting to enter castle district)
* Very slow in fullscreen mode, mouse movement lags 3-4 seconds
* High CPU usage even when idle (100%-115% on title screen, about 200% in game when paused)
* Moderately high memory usage, fresh load (Market Street) went from 4.9GB to 6.8GB resident while paused