Valiant Hearts: The Great War[a] is a 2014 puzzle adventure game developed by Ubisoft Montpellier and published by Ubisoft. The game was released for Microsoft Windows, PlayStation 3, PlayStation 4, Xbox 360 and Xbox One in June 2014. Set during World War I, the game follows four characters who help a young German soldier find his love in a story about survival, sacrifice and friendship. Players solve puzzles by interacting with various objects and people. The characters are accompanied by a dog named Walt who helps players solve puzzles. Collectible items hidden in each chapter reveal facts about the war. The development team's goal was to assist players to remember World War I during its centenary in 2014. The team stayed away from creating a war game or a first-person shooter and focused instead on depicting the trials and tribulations of soldiers on both sides during the war. To ensure the game was historically accurate, the team listened to first-hand accounts of the war, read letters written by enlisted soldiers and traveled to the remains of wartime trenches in France. As the team had no experience working on a puzzle game, they took inspiration from old LucasArts adventure games as well as titles like The Cave. Valiant Hearts utilizes UbiArt Framework which was previously used in Rayman Legends.