The two game modes between placing turrets and then retaking the land are interesting! The first time I played I built so many forest turrets that the saws bugged out and I couldn't chop any more trees. The second time I played I immediately chopped the great tree down and was pleasantly surprised to find out about the nature mode.
It's an interesting concept where you're kind of fighting yourself. There were a few bugs that made playing and understanding the game difficult, like a bug that lets you place trees while being a settler and having the ability to cut down the ancient tree immediately and have zero rage. Maybe the settler should be limited to what trees they can cut at first so they have to make incremental progress.
I was impressed by the art, and the implementation of the concept! I could see this being expanded on and becoming a balancing game of building vs. destroying, kind of like playing an RTS and then destroying it all.