One time there was a civilization. Not a very big one, approximately 75-100 people all living in a small village. They had it good; there was absolutely nothing to harm them. That was until the small village grew. Over the years the population increased dramatically. From 100 people to over 1,000 families all living in now, well a small city.
The people wanted to expand more and discover more than the dusty desert that they lived in. Many tried, but none prevailed. The reason for their failure was unknown to their kind, the only reality they knew was sealed up inside the city walls trapping them from the knowledge they wanted so desperately.
The town rebelled against its leaders, surprised the leaders acted fast gathering groups of people and using them against the resistance. Thus the Ender War was born. In the benefit of the resistance they used the scientists to help create a creature of destruction.
Years into the war the scientists successfully created a creature of destruction. It was a kamikaze type creature. They named it after its actions; because of its sneaky nature they named it the creeper.
The creeper devastated the leaders forces and soon after the rebels broke free of the city walls receiving the freedom they fought for. This freedom didn't come free though, the city leaders tried hard to destroy them still.
The war raged on but the rebels found reliable resources like iron and gold, which they used against the city and won many battles.
Not seeking defeat the city looked for new ways to find weapons. They established a secret underground base and called it the stronghold. They performed experiments in seek of new weapons. The scientist one day had a idea, they built a portal and tested it. Sending only 2 men through, they where instantly killed because of the failed transfer. They fixed the portal so it was safe for humans. Then sent 2 more humans through the portal. One of them was killed by a large dragon and the other was teleport back to the base. The survivor described the horrid scene of this new dimension and named it "The End" after the war that caused the chain events that came to this.
Later that day he started to experience some strange symptoms, when he was walking he sometimes found himself 5-6 feet in front of his previous position like he had teleported. His skin had this rash that looked black. His arms and legs started to grow and exceed in length, along with a choking sensation. His blood became cold and purple, his eyes became bloodshot and started to glow. He was quickly put into quarantine and observed but he already turned.
The scientists named the disease that killed the man "The Ender Virus" and before they could kill this creature he had escaped custody and disappeared into the world spreading the disease to other people.
Things where looking bleak for the world. The resistance made a portal as well but it didn't lead to The End, it lead to the fiery under world. They named it the Nether. Instead of using it for their advantage they used it as a prison for the other forces they captured, but the Nether turned out to be more than what they hoped for...