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Top Books on Reddit in 2018 rank no. 136
Video games are sometimes erroneously called games(r/gamedesign)
www.amazon.com/Art-Game-Design-Lenses-Second-ebook… Highly recommend this book if you don’t have it already.
Production wise Unreal Engine official has so much learning material, courses, open sourced projects for you to learn. All free. Honestly for beginner there isn’t much to spend money on, because game engine company like Epic has made so much money they invested a ton in return to further promote their engine. You just need patience.
Maybe get a Houdini Indie license? That’s a rabbit hole you might want to think twice of.
And there’re a lot of good stuff on Udemy, also very cheap.