The Omega Event

It's been 5 years since a catastrophic event brought mankind too it's knees. In that time, over ninety percent of the population has either mutated beyond recognition or been wiped out. The cause of the event unknown, the surviving members of the human race scramble to stay alive, fighting monstrous creatures and fighting for resources. And in the thick of it stand a brother and sister duo, doing their best to protect each other from this twisted world. But what will they do when their world is once again turned upside down?