For the folks who are not keen to party hard,
We are asking around and trying to find a chill place where you can hang out. There is a board game cafe in Daejeon, but it's rather far from the rest of the party. We are asking around for places near to the party, so it might be possible to pop in and have a little of both experiences.
In Dunsan, near Traveler's/the party: a bunch of restaurants and coffee shops, batting cages, noraebangs, a couple of fancy dessert cafes.
In Gung-dong (near Santa Claus and the old Shisha House, if you know Daejeon): a board game cafe called Maeul. It is directly across from the Baskin Robbins on Rodeo Street. Bright yellow sign. In the basement.
I hope this helps! I'll update if we get any more information coming through!