- Four Against Darkness: A Solitaire Dungeon-delving Pen-and-paper Game
- Rogue Stars: Skirmish Wargaming in a Science Fiction Underworld
- Four Against the Abyss: Volume 2
- Caves of the Kobold Slave Masters: A Solitaire Adventure for Four Against Darkness Recommended for Characters of Level 1 or 2: Volume 2
- Caverns of Chaos: Tables and Missions for Four Against Darkness, Levels 3 to 6