Battalion Commander 1917

Set during the chaos of World War I, Battalion Commander 1917 casts you as an ordinary soldier handed an extraordinary mission. Orders come down that seem nearly impossible: cross deep into enemy territory, track down an enormous enemy machine, and destroy it before it can be used against your side — a mission that could save as many as 1,600 fellow comrades.
Along the way, you'll come across soldiers held captive behind enemy lines; free them, and they'll join your growing battalion, adding real firepower to your advance.
Each run also lets you collect gold, which can be spent on valuable upgrades, including a heavy tank to push through tougher resistance. It's a tense, mission-driven 2D shooter built around steady squad growth and rising stakes.