[en] [Operation Otherworld 02] • Operation Luna Tor Science Fiction
[fr] [New Space Opera 01] • Le Nouveau Space Opera Bragelonne
[en] [Merkiaari Wars 04] • Operation Breakout Impulse Books UK
[en] [Merkiaari Wars 04] • Operation Breakout · Merkiaari Wars Book 4 Impulse Books UK
[en] [Sector General 01] • Beginning operations Tor Books
[en] Operation Longlife Wildside Press
[en] The Godel Operation Baen
[en] [Far From Home 01] • Operation Chimera · A Far From Home Series Curiosity Quills Press
[en] [Far From Home 01] • Operation Chimera Curiosity Quills Press
[en] The Sol System Renegades Quadrilogy · Books 1-4 of the Space Opera Thriller Series Knights Hill Publishing
[en] An Echo in the Blood (The Hive Trilogy: An Unborn Space Opera) C.L. Roman
[en] [Starstrike 02] • Operation Orion Del Rey
[en] Beyond · Space Opera Effervescent Press
[en] [Galactic Demon Hunters 03] • Black Hole Werewolves_A Paranormal Space Opera Adventure Createspace Independent Publishing Platform
[en] [Galactic Demon Hunters 01] • Damnation Robot_A Paranormal Space Opera Adventure Shadow Alley Press
[en] [Galactic Demon Hunters 02] • Neutron Dragon Attack_A Paranormal Space Opera Adventure Createspace Independent Publishing Platform