It was a funny moment in the book (as a breather from all the orc slaying), where the heroes entered an ancient dwarven labyrinth. The dwarf in the group immediately started admiring the great craftmanship and pronounced that anyone who isn't a dwarf would end up immediately lost in it, with no chance of escape. When asked, how they should navigate the labyrinth, the dwarf put his hand firmly on the left wall and said, with a stern face: "Stick to the walls. Always go left."
What should I say ... That shit works (of course you can easily create labyrinths that can't be solved with this "navigation technique", but rarely people take these rules into account).
Learning languages in games is a concept I haven't come across until some time ago (I am pretty sure that there is also language learning in older games, iirc also WoW, but none of which I played), and it is a mechanic that I surprisingly really enjoy. I started to come across it in a game called wander, where finding stones and learning a language was basically all there was to the whole game (I wouldn't recommend anyone buying it, although I can easily end up spending hours, just ... wandering ... around).