I just figured it was a blurting game. (This is how my family describes games: blurting or not blurting. For example Trivial Pursuit is non-blurting, because people blurt out answers until you nod your head yes.)
Dwellars tend to not monopolize games, so I didn't make rules. If you all want we'll do the other decades one letter at a time.
So let's fill in the rest, peeps.