Game Development

You don't have to reproduce Unity to create your game. You just need to write what you need. And you could also chose an actual free software project instead of something where they pull the rug right out from under you. If you look at the choice today, with the rug already having been pulled, would you not consider the choice an obvious mistake in hindsight? Every other project these days loses money by trying to build a following which they will then monetize on. I'm sorry for people who walked right into this trap, but it could have been avoided by making better choices in the past. Sorry if you disagree, but I've been around long enough to recognize these recurring patterns with "free" software.