Valiant Hearts: The Great War™ / Soldats Inconnus : Mémoires de la Grande Guerre™

In 5 libraries here. 3 launched it, and the typical player put in 3.8 h. 2 finished it.

Named in 0.1% of Name 100 runs, about 1 in 1,123: people remember it when asked to name 100 games from memory.