Up there with Heaven's Vault in terms of language learning games, and manages to go a step beyond as you start to impact the world and interactions of various groups of people you meet along the way. The game could have easily done without the stealth sections but they don't detract from a great puzzle experience.

Also something I won't say too much on so as not to spoiled anything but it was a nice touch how the glyphs themselves make sense in each language.