A free app for Android, by John Tiller Software.
This is a game about the American Civil War. In it, you take the role of a commander of a Union Army in the midst of a battle. The goal is to defeat your enemy and take the battle ground.
You are able to control different types of units, including infantry, artillery, cavalry, and others. Each of them has its own unique strengths and weaknesses.
Your units will be armed with different types of weapons, including guns, rifles, machineguns, and others.
Each battle will have its own outcome. Depending on the number of troops, the type of troops, the strength of the enemy, and other factors, you might win or lose the battle.