A bedtime game I like to play with Jack (4) and Elazar (6) is that they pick a topic and I try to think of Torah to teach them about it.
Tonight Jack said "belly" and I told him a little about Sotah. Then he said "wall" and I told him a little about tzara'as.
It's fun and challenging to see what we can think of to come up with when they think of topics. I think this might be a fun Shabbos table game.