[en] The Space Opera Megapack Wildside Press
[en] [Jolo Vargas Space Opera 03] • The Cold Dead Earth J.D. Oppenheim
[en] Fear the Liberator · A Space Opera Novel Mars Dorian Media
[en] The Jolo Vargas Space Opera Series Box Set J.D. Oppenheim
[en] The Space Opera Novella Wildside Press
[en] Beyond the Stars · at Galaxy's Edge · a Space Opera Anthology Createspace Independent Publishing Platform
[hu] [Space Opera 01] • Űropera GABO
[en] [Merkiaari Wars 04] • Operation Breakout Impulse Books UK
[en] [Space Eldritch 01] • Space Eldritch Cold Fusion Media
[en] [Merkiaari Wars 04] • Operation Breakout · Merkiaari Wars Book 4 Impulse Books UK
[en] Operation Longlife Wildside Press
[en] Space Eldritch Cold Fusion Media
[en] [Known Space 01] • Arm Del Rey