Astra Itinera

In the far distant future, the story of a united Earth branching out to the stars is more legend than history.
Humankind spread across the galaxy to planets in all regions of space.
But the distance was great, communication and travel were slow… and human nature took a dark turn as civilization collapsed, sending worlds into chaos and barbarism overrun by marauders.
Your world has risen from the chaos—a united republic like the Earth of legend. Technology for space travel improved steadily. Hope of restoring order to the other worlds is growing.
Reaching out to other worlds—you found there is a growing threat of tyrants seeking galactic domination. Technology— naively shared at first, then stolen—has created formidable opponents and a long war ensued.