When was the last time you cried in a video game? It's been quite a while for me. I remember The Walking Dead's closing scene hit me pretty hard, but not too many times before or since then.

Ubisoft is looking to be the next video game publisher to tug at your heart strings and eye ducts with its indie inspired adventure game, Valiant Hearts: The Great War. Using the same graphic engine which powered Child of Light and Rayman Legends, its famous Montpelier studio is constructing a story of families torn apart, sacrifices being made, and lives being lost in a marvelous World War I tale.

With over 30 million casualties, you can probably guess that one of the five characters it will put you in control of will not make it to the end of the game. Same goes with the dog which connects all five stories. That poor pooch is going to cause me to go through a few tissue boxes, I can already tell.

The first Ubisoft developer diary show how Ubisoft Montpellier came around to the idea of the story and art, how it achieved historical accuracy from all sides of the war, and how it will try to achieve the emotional attachment it wants you to feel with each protagonist.

Valiant Hearts: The Great War will be available for the PlayStation 3, PlayStation 4, Xbox 360, Xbox One, and PC on June 25th.