Massively multiplayer games is an online sub-genre is an online game that includes large numbers of players performing on the same server. The aim is to explore the universe, collect items, complete tasks and participate in battles. Usually, this is pretty much the gameplay; some multiplayer follow a specific plot. They suit every network-capable platform. MMs enable users to cooperate and battle with each other and represent many genres. The most popular type is RPG multiplayer such as World of Warcraft and Final Fantasy XIV. To upgrade avatars or equipment, one should buy it with real money accumulated in the virtual economy; the first game which implemented the system is Ultima Online. This often leads to cheating or pirating. Some of the most famous among the recent MMs is SCUM, Battlerite Royale, The Elder Scrolls, and DayZ.