Some low tech suggestions for after the grid goes down, or if one was at my low tech abode;
A pack or two of cards, and some gin, or similar, the game that is.
Perhaps some chess/checkers boards, and with a run off or elimination. There's always some who would rather enjoy watching and drinking than playing, at least after loosing a round or two.
Scrabble can be fun if crew is semi literate, would probably have to have a couple of games going.
Of course there is always poker. Playing for coins and keeping the stakes kinda low helps people stay relaxed and friendly.