Start a journey across a neverending universe filled with obstacles and Dangerous Stuff.
Manouvre your ship around those Scary Red Dots, gently steering with your remote/pad. Or not so gently, if you prefer. Whatever floats your (space) boat.
Try not to remain without fuel, and explore as far as you can reach. Infinity awaits you in every direction: are your piloting skills good enough to get to it?
Of course, you're in a rush, so your ship is always accellerating – it wouldn't be much of a challenge if you were simply out for a stroll, would it? :)