I really like this turn-based strategy battle to scare all the villagers.
As others have said, the single player AI is weak, and theres limited replay in the single player game, but the premise is solid and the execution is quite good, and seems like a good two player head to head game.
The computer AI has all the expansions, but it doesnt seem to be much of an advantage (just variety), so I think concerns about the add-on costs are overblown. You can play just fine with the starting set of monsters, plus the reaper which is free with account registration.
Id hope for better AI in future updates, and maybe some tweaks that make the board layout more varied, to reward replay.
mussels about Haunted Hollow, v1.0