Quantum Starfarer

From DriveThruRPG:

Starships riding fire across the sky. Heroes and villains exchanging laser fire. Desperate spacers struggling against an alien monstrosity. Vast alien vistas, flying cities, moonscapes, mad robots, and first encounters. High-action science-fiction adventure that stimulates your sense of wonder. The rules include everything from quick character creation, through personal, vehicle, and starship combat, to starship design, procedural world generation, and a quick equipment guide!