One way that creators make money from free content is through adverts that are shown alongside it. They only get a very small amount of money when an advert is seen, but the more times an advert gets seen, the more money they can earn.
For some creators, making money comes from selling other things such as in-game items or memberships. They may also launch and sell merchandise – toys, t-shirts and other things they have made that they advertise in their own content.