extermination.io is a great 2D shooter where your goal is to destroy everything! Go through many unique levels and buy upgrades, install equipment and go into battle. There are many different types of weapons to make the gameplay more interesting, and you can even go into battle without weapons. To defend against enemies, you can buy armour in the store. You can wear one helmet and one object for the body. extermination.io also comes with a full-featured level editor, so you can create and upload your own levels for other people to play.