Not done yet

“This is a game that we are working on right now. The people building the game are changing and adding and maybe removing some parts of it. But we are not sure what to add and what to change to make it really good. That’s why we are so happy for your help. It might even break or stop working because it is not finished.”

Why this technique
It emphasizes that the kids’ opinions are welcome and helpful, and that no one’s feelings will be hurt if they don’t like something.