The games that I made are free but I can earn passive income from the adds that are shown at the bottom of the screen. The instructors of the course show earnings proof about how they make at least $2000 every month. They have however made over 100 apps so I have some work to do. I've made 4 apps so far and I've set a goal of making an app a day as this is what the course instructors do. Making $2000 a month from home would be an absolute dream come true and having a large part of that be passive income would be amazing! Here are links to the free games that I've made so far.
Space Alien Invasion
Fourth of July
A Day at the Beach
Back to School