The business model is simply selling the game (typically in a $10-60 range), and sometimes additional DLC (downloadable content).
There are many games by independent developers on consoles, too. For example, Nintendo regularly releases "Indie World Showcase" promotional videos: https://www.youtube.com/watch?v=brNLmMMB-J4
There are many games by independent developers on consoles, too. For example, Nintendo regularly releases "Indie World Showcase" promotional videos: https://www.youtube.com/watch?v=brNLmMMB-J4