Controls work fine for me, both on Xbox controller and on Keyboard. Space bar worked for starting the game.
For you, will be lucky, but the same thing didn't happen to me. I have tried everything and not even pressing the space key starts. I don't even have an Xbox 360 or One control.
And remove the negative votes from my comments as if I was completely wrong and your as if it were good for everyone else, nothing is for the all reach.