The game focuses on the period of WWI and includes World War 1 weapons such as Artillery, Mustard gas, Semi-Automatic Rifles, Bolt-action rifles, etc. It is the fifteenth entry in the marvelous series of Battlefield and the first main game since Battlefield 4. Battlefield 1 is an Action-Adventure, First-person Shooter, Single and Multiplayer video game created by EA Dice and published by Electronic Arts.