Starblazer Role Playing Game Planet Killers

"Millennia ago, the Star Kings destroyed whole worlds and moved entire stars in their quest to build a galactic superweapon. Leaving a trail of extinct or dying species behind them, it was only a matter of time before the few remaining civilizations banded together and fought the Star Kings in a final climactic battle on their home world. Now, the frigate Rocinate, on a peacekeeping mission, stumbles across a long-forgotten world and accidentally awakens ancient war machines that have lain dormant for millions of years! In The Planet Killers campaign, characters are drawn into a tale of revenge on a galactic scale! "