The year is 2074. Three years ago a laboratory virus became airborne, and infected the human race. 90% was killed instantly. 10.5% became zombie-like creatures without any reason or logic, just the desires to hunt, kill, feed, and mate, however, they're sterile. only .1% of the world's population was totally immune. The other .4% developed strange abilities, because the virus opened up parts of the human brain that we aren't capable of harnessing on our own. This disease was named Elegy by the people who were safe from it, not very much of the population.
The zombie-like people are known only as the infected. People don't see any reason to make them into monsters. They just want them to live out the rest of their days without causing harm. They are often much faster, but not much stronger, than a 'clean' human. However, they're infinitely more aggressive. They don't look human anymore. Their eyes become completely colorless, except for the pupil, which often closes up. It's estimated that 20% or more of the infected are blind because of this strange aftereffect. Their senses are greatly enhanced though. They can hear even the slightest noises, and sense vibrations through a brick wall. They're not superhuman as far as strength is concerned, but they'll use what they have and they never back down.
The .4% infected, but still hanging on to their minds, are called Vales. The abilities they've gained are always of a psychic nature. Telepathy, minor teleportation, telekinesis, mind reading, energy radiation, it all comes from the mind. Unlike the infected, Vales are fertile, and able to have children. These children often suffer from any and every conceivable disease, or are extraordinarily healthy, and end up destroying everyone around it through mental power, not knowing how to control it, Very few have grown past 2, but there's still time. These people are sane.
The last .1% are called the Obsoletes. The Vales look down upon them for not being able to adapt to the changed world, and as with all groups of humans there are those who go against this way of thinking, that is the general consensus of the Vales.
The setting is a future L.A, where efficient battery-cars line deserted streets. Most of the houses seem to have a silverish sheen to them, with no obvious window. It's actually a solar skin, an advanced solar panel, that supplies power to the building. Since most of the buildings are self sufficient for energy like this, very few were hooked up to the power grid that now lies in shambles. There's also geothermal power, though it's less common. Quite a bit of food is grown hydroponically, within sealed buildings that the residents call complexes. Many complexes are joined by suspended tubes that go from building to building, and through many abandoned ones as well. Tubes have been blown up before to keep the infected from getting into a complex. Heating doesn't use oil, but instead, through the silver-skinned buildings, miniature coils wind their way through the walls and floors, and can be temperature adjusted.
The object of the game? Survival.