Trench Warfare 1917: WW1 Game

Trench Warfare 1917 is a free, fast-paced real-time strategy game set in World War 1. As the General, lead troops from 10 different armies across 25 levels in campaign mode, or survive 50 waves of enemy soldiers in survival mode. The creative/sandbox mode allows you to design your own levels and battles with various maps, weather, and units.