Of course Scrabble is a classic, I've played it a lot, but it wasn't in my home as a kid. Even though I am from the USA, I am not familiar with the 5-Second Rule game, but the concept is very entertaining, and I could see it beneficial for English learners too. UNO is a big one too in our house, the kids get very competitive with it.
Thanks for joining the challenge, an outstanding post.