On one of the planets, colonists from the earth are harnessed to the attack of various monsters that live in this world. In the new exciting online game Monster Mayhem, you will help your hero repel the attacks of monsters. In front of you on the screen you will see a barricade behind which your hero will be armed with firearms and grenades. Monsters will move towards the character. You will have to bring them to a certain distance and open fire to kill. Shooting accurately or exploding monsters with grenades, you will destroy your opponents. For this you will be given points in the game Monster Mayhem.