Ace
- Behind Time
- Silverglass
- The Goddess Worldweaver
- Stepsons of Terra
- Jamie the Red
- Outlaw Sword
- Sworn Allies
- Redzone
- Vertigo
- The Wooden Sword
- Majyk By Hook or Crook
- The Night Face
- Personal Demon
- The Great Time Machine Hoax
- Tambu
- Where the Ships Die
- Kent Montana and the Really Ugly Thing from Mars
- Drifter's War
- The Worlds of H. Beam Piper
- Off Limits
- The Demon Of Scattery
- McCade's Bounty
- Drifter's Run
- Octagon
- Northwest Smith
- A Study in Sorcery
- Spindoc
- Star Commandos (Star Commandos, #1)
- The Mists of Doom
- The Endless Frontier