Idle Kill'em All! is an Idle-style strategy game in which you will have to wage war against horrible monsters who will try to conquer the kingdom. You will need to summon units, merge them, and place them on the battlefield. Depending on the value of the units, you can merge them with each other and thus increase your striking power. Compete against terrible monsters, and also formidable bosses. Good luck ! Use the mouse to play this game.