We had a triple date night a couple of weeks ago with The Sugdens (Katie and John), and the soon-to-be Christensens (Alex and Orchid). We had a great time snacking, chatting and playing the Choo-Choo game. There is only a max of five players for the game and since there were six of us, we did teams.
Here is a picture of the board. To play the game you have "missions" that you have to complete. I.E. Seattle to Los Angeles. To complete your missions you have to build a train connecting those two cities.