Hi all, first post hereabouts.
I've been playing AH for quite a while now, and I've noticed that while the game plays very well (and is often challenging) with 3-4 players, once you get above that it's just too easy. With more players, you have enough people to do everything without losing stride if one or two are busy healing up or item-hunting or whatever. The lower Gate and Outskirts limits and the higher Arkham Monster limit adds little to the challenge.
Boardgame nights being what they are, one can't always exactly control the number of people who turn up -nor do I want to. As a result, I've been toying with ways to increase the challenge with more players, but if possible I don't want to reinvent the wheel.
So my question is, how do you guys increase the challenge? Anyone have any good house rules?
I currently have the Dunwich and Pharaoh expansions.