Okay, my ideas for the story are kinda generic and non-original. So I have more time to learn new tools. The theme is not the one I wanted... But I've got some ideas.

My ideas - 12 minutes - Infinite runner - 50 first dates - driving the same racing course again and again - Loop and you are pushing into it next carts - merge X game style - a knot is a loop - adding new knots to a rope - electric circuit

I'll take a nap for a couple of hours now. After I'll choose the right idea, game engine, and start with coding.