This was a delight to play! I normally don't mesh with this sort of game, but the information was portrayed well enough that I was able to get into the groove of things very quickly.
Clever how you (I'm guessing) predicted that people would lean hard on the 2x2 token strategy, so you punished it hard. That said, figuring that out made the final opponent much more predictable, so I think it might've helped at the end.
It was interesting to see how some of the tradeoffs you had to make to boost the difficulty, like the vampire placement on the entire board, or how you place the 2x2 token over the most unrevealed cards, ended up making it easier in other ways.
I think that actually ended up making the game more compelling. I keep coming back to this; great job!