Extermination is an excellent shooting game in which you must attempt to kill any opponent on each level. You control a basic character by moving with the WASD keys, and you must be fast, agile, and use the walls as protection. Since you only have a limited amount of impact points, try to take as little damage as possible; if the damage gets too great, you will die.
As you advance, you must earn money and use it to buy new weapons and tools to help your character become stronger and live for a longer period of time. Will you finish all of the levels and exterminate all of your enemies?