Arkham Horror: The Card Game

I've not gotten into any of the expansions. The base game is really cool and pretty tough. Tough in the sense of trying to beat the game. It's easy enough to learn and set up. Good stuff.

The absolute best board/card game to my tastes. The campaign and story elements make for mysterious first playthroughs and interesting unique replays. Each scenario is highly creative and plays unlike others, with excellent theming and art. The investigators and deckbuilding possibilities provide variety themselves which only improves with each new pack. On top of this, it scales reasonably well anywhere from 1-4 players. This game has led to a sharp decline in my playtime on any other.