It is 3425 BBY in the Old Republic Era, 18 years following the complete collapse of the Resurgent Sith Empire.
A young Force adept with an uncertain background (that's you!) finds herself stranded on a former Imperial world still recovering from the power vacuum left behind. She becomes embroiled in a small part of a conflict far older than she is.
It is three thousand years before the Battle of Yavin. You are Jazt Naht, a Jedi in training. Your Masters, even your family, have always encouraged you to listen to the Code and the will of the Force. It just figures that your first mission makes it hard to do either one.
In a galaxy where darkness triumphed, and the Sith have ruled and fought and torn each other apart for millenium, you stand not as an all powerful dark lord, or even as a dark apprentice.
You are one of millions of force sensitive runts; not even a student yet with mere hopes of becoming something greater. (Assuming your father, anyone higher on the food chain, or your name being drawn by a machine doesn't sentence you off to the Unknown Regions first to fight and die in obscurity against...
You control Desmond Miles of the Order Of Assassins, only this time, in the Galaxy Far, Far Away. This particular sandbox has one goal: Getting The Apple Of Eden before Palpatine does, or defeating him before he unlocks it's secrets before bending the galaxy completely to his will.