Warless Stars: Mecha Apocalypse at the Galaxy's Edge

In the year 20333, humanity's mecha civilization reaches the Sagittarius Arm—only to broadcast Earth's location to hostile alien forces. With the old world destroyed by cataclysm and a galactic countdown to annihilation ticking down, Earth's survival hangs by a thread. Can humanity's advanced war machines turn the tide before the stars themselves become their graveyard?