Yes, you can create a game and legally sell it with the free version of Unity. The general consensus at this stage is that Unity and Unreal Engine both are beginner friendly and won't require advanced programming knowledge for simple projects which will get the ball rolling as you learn.

Both have strong communities in which you can participate and consult with. Both game engines are extremely robust and offer a fully featured free version to get you started. There is no right answer to that question. Which is easier to use, Unity or Unreal Engine? Highlights include the likes of Among Us, Beat Saber, Genshin Impact, Pokémon Go, Super Mario Run, Iron Man VR, PC Building Simulator, Pillars of Eternity, Kerbal Space Program, Hearthstone, Temple Run, among many others. Unity has been used to create hundreds of popular games. You can download it and use Unity free of charge as long as your revenue (or funds raised in the last year) does not pass $100K. It also includes support for Unity Ads and the in-app purchase plugin.

Unity offers a free Personal plan that includes all core features to create games and interactive experiences.

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