My low level students don't like pictionary either, but I force them to play it because I've come to realise that tey don't want to play because they're either too lazy to actually be active participants in class, or they're too shy to be laughed at by the other students in class if there's a word they don't know.
They absolutely LOVE "Hearts, Guns and Bombs" and the "Bomb Game", as both appeal to their competitive nature.
I taught 2nd Grade middle schoolers how to play UNO. Apparently they had never hear of it before, so my guess is that it is not sold in Korea. If you brought UNO cards along with you, or you have access to a militar base where you can pick some up, the children will really enjoy it ^^