Steam Store Link: http://store.steampowered.com/app/242860/Verdun/
Discount: 70%
Price: $7.49
Description:
Verdun was the first multiplayer FPS set in a realistic World War One setting (until Battlefield 1), the game which started the 1914-1918 WW1 Game series. The merciless trench warfare offers a unique battlefield experience, immersing you and your squad into intense battles of attack and defense.