I am switching game engine for ease of use and budgeting. Unity was too hard to use, and I have a history of using Gamemaker most my life. I used Gamemaker since I was a kid since Gamemaker 5 came out. I remains' dear to me and its affordable. As for 3d game I'm switching to Unreal Engine because of Blueprints and Gamemaker has the Drag and Drop. I finish designing level 1 of The End of the Norm game and Gamemaker can make it happen more quickly. There just easier to use!  Plus, if I had enough funds, I wish to publish on Nintendo or Xbox systems one day and with Gamemaker I could afford it.