"Space Opera is a science-fiction role-playing game focused on space opera themed adventures. Although generic, it has an official universe first described in Space Marines."
- A 92 page Volume 1 rules book with sections on human and alien player characters, character generation, a dozen career areas, over 175 skill areas, psionic talents, equipment maintenance and repair, starship maintenance, and asteroid mining.
- A 90 page Volume 2 rules book with sections on equipment lists and descriptions, technology levels, vehicles and aircraft, weapons, ground combat, starship design and combat, interstellar commerce, starports, planet generation, non-player characters and encounters, and aliens.
- A double-sided blue cardstock Character Record Sheet/Novagun Targeting and Range Chart
- A double-sided blue cardstock UFP Planet Survey Form/Starship Data Sheet
- A double-sided blue cardstock UFP Intelligence Report Form/Novagun Action Hit Table
- A double-sided blue cardstock UFP Contact Report Form/Novafire Success and Penetration Chart
- A half page summary of game contents