It would not allow me to rename "enough" of it when downloaded using Firefox...the .html part visible in the downloader dialog would not be present offline---just the .exe.
At any rate, the file downloaded and executed correctly when I used Internet Explorer instead. The Introduction and Menu screens performed well, but once I got ingame everything was so incredibly slow and unresposive as to make it unplayable. Restarting it and disabling the options given in the graphics menu didn't really help to any significant degree. I would not be surprised if my old PC here is the culprit(5-6 year old Dell), as I had a similar issue(well, much worse I suppose) with another recent Indie Roguelike you might have played, Mines of Morgoth....either that or Microsoft/.NET stuff hates me.
I'll give the game another shot in some weeks once I have a modern machine same as Mines of Morogoth. :fingers crossed for said machine and everything working well with it:
Best of luck meanwhile as I hope the playerbase grows in the near future and the game continues to evolve. Perhaps in the future I might even be able to help out more directly with future game projects as such serves as my area of activity.