You're the last being on this unnamed planet. It very closely resembles Earth down to even the animals but its far more advanced than what a mere human could ever think of. A virus wiped all of the others out except for you lucky bastard...or so you think. You go downstairs to buy some stuff,no one is going to stop you to doing whatever no matter how morally incorrect or vile your actions are.You're now the king (or queen or supreme force i dont mind) of the world.