Philotomy Jurament
First Post
Probably The Longest Day (Avalon Hill). We played a game that took all summer, played off and on. It rendered the dining room table at my friend's house unusable, to his mom's consternation (I don't think they used the dining room much, anyway, though). Fortunately, his father was a player in (and the owner of) the game, so that wasn't a big problem. 
[Note that Board Game Geek lists the playing time as 5,400 minutes, or 90 hours. I think our game probably took longer than that, but I don't know for certain.]

[Note that Board Game Geek lists the playing time as 5,400 minutes, or 90 hours. I think our game probably took longer than that, but I don't know for certain.]