Age of Empires: Definitive Edition

Select the Assyrian as your Empire. Set up a game with a full tech tree, huge map, large resources and post iron age. Turn on the 'steroids' cheat. Have your villagers build a bunch of houses and an Archery Range. Make a bunch of Assyrian Chariot Archers, select a large group of them by clicking and dragging your mouse over them, and press delete. This will instantly kill all the ones you selected. Rinse and repeat. You will need to use the 'woodstock' and 'pepperoni pizza' cheat codes to replenish wood and food respectively.