Gosh, what a giant name.
On the 100th birthday of the beginning of WWI, Valiant Hearts was the best work of art we could expect, to mark this date. The game manages to teach us a lot about WWI (really, there is an exceptional historical accuracy, main facts about the war are covered and you get to play on some historic events), while also achieving quite a lot on other areas. The music is exceptional, the art is beautiful, the history it's touching. Only cons: Sometimes it's a bit infantilized for my taste, but that's because they probably created it in a way to reach the young persons, too. Overall, is one of those you should not miss.