Very weird, in a good way. Nice twist on the psychological-horror-set-in-a-lighthouse trope. I also found it darkly humorous, not laugh-out-loud funny but it did have me grinning like a madman while I stumbled around with my axe seeking ever more sinister offerings for the lighthouse. Very appropriate and not at all expected.
On a technical note, this actually ran better and faster in my browser than from the downloaded version. Pretty strange for it to be that way around, but the browser version worked fine enough. There was just a bit of lag when I chopped the door down and went into the shed with the oil barrels.