Ten Thousand Years Later: Hunted Down? I'll Build an Empire Instead

A terminally ill boy awakens ten thousand years in the future, equipped with the high-tech golden finger of nanobots.

He builds a faction in the new world and joins forces with multiple races to fight powerful enemies.

In the end, he takes control of a mechanical army and saves the world. (Star Core: Ding! My name doesn't even deserve a mention? Tsk.)