SIN takes place in a post apocalyptic future derived from a universe very similar to ours. The inevitable lack of resources to sustain humanity on Earth had split the world into two warring factions, the United Nations (U.N.) and the New Earth's Alliance. (N.E.A.).

After years of unnecessary conflict and technological advancement in weaponry, both sides eagerly stumbled into peace to avoid extinction. Now under the rule of the newly formed United Earth's Federation (U.E.F.) space has become the last hope for the human race.

However, with resources more scarce than ever the clock is ticking. How do we decide who's privileged to live and who's not? What happens to those of us left behind? A world now loosely controlled by a single totalitarian government, overrun by gangs, private military groups, freedom fighters, and death; Life seems to provide no more than a fruitless future.

Regardless, there are still those of us that fight, we fight each other, we fight the system, we fight for our loved ones... whatever the reason, we battle for answers.