Mazebert does not really look like a "inspired by" game. More like a rip off (You TD). It's like saying that LoL or HoN was "inspired" by Dota. No, they were rip offs. You can use the idea, same. You just copied various original ideas of YouTD. It's mechanics, item trading and and towers and items itself. When you copy very idea that made popular some game it's not an inspiration. It's a ripoff.