I looked into this for Andriod/iOS development and I don't want to say no - but I really think there are easier ways to make a living. Also had a friend who release a half-way decent game using Swift (iOS) and it bombed. I think the stats are basically only 2 of every 10 App Store games makes profit. Salary wise it works out to for every developer 8 of ten don't make a poverty line income. 1 of ten will survive (say 50k USD per annum) and the other 1 is a large firm (Supercell, for ex.)
That of course is for mobile development, but it goes to show that the people making the big bucks are the established firms, not the small guys. In addition, anyone making money is making money because they have already release 3+ decent titles. Reputation is everything in mobile dev. Now again, this is mobile dev, not general game dev. But the lesson seems to be, go work for a big company (and then may be then, strike out on your own) or go be these guys.