The Black Pits of Luna
Robert A. Heinlein
Future History or "Heinlein Timeline" (11)
Time for the Stars
Sword Coast Adventurer's Guide
Steve Kenson
Dungeons & Dragons, 5th Edition (1)
The Pandora Paradox
Joshua Dalzelle
Omega Force (12)
The Spider's War
Daniel Abraham
The Dagger and the Coin (5)