I really like the old Lucas graphical adventure games: Day of the Tentacle, Full Throttle, Monkey Island 1, 2 and 3, Indiana Jones, Loom. Some of them have remastered editions that make it easier to play, but I think GoG made a really good job with their versions too. They are puzzley games that make you think out of the box sometimes. They have great stories too. I learned a lot of English playing those games as a kid.