This is a challenge for The Sims 3, created by me and my friend Henkla. But their creator wouldn't let them pass that easy, because those with the perfect genes would forever hate their own children.' Welcome to the Perfect Genetics challenge! They were destined by their creator to give birth to a heir with the same special looks who would get the same task until the genes had prospered for 10 generations. But this very Sim had something special that no other Sims had, unique eyes that nobody before had seen anything alike and a hair colour that astonished everyone who saw it. Perfect Genetics challenge 'Once upon a time, the Mighty Player sent a Sim to live in the world where all its creations were living happily.