GTA: Royal Warfare
Once, there was a righteous king, who ruled the land with greatness. However, evil doesn't like that, so they send some undead. At first, the undead was harmless and some traders even exploit them since they don't ask for anything else. The king warn them against the undead, but no one listen. Then came a day, when more undead visited the castle. Soon, the undead turn ruthless and started killing. That was the start of the great war. The game is played via mouse and the idea here is to not let the undead pass you. You earn money from killing undead and you can spend money to hire more troops.