Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | City of Terrors | 1978 | Michael A. Stackpole | Buy |
| 2 | Sewers of Oblivion | 1980 | Michael A. Stackpole | Buy |
| 3 | Tunnels & Trolls Solo Adventure 21: Red Circle, Fantasy Role Playing Game Module | 1987 | Michael A. Stackpole | N/A |
These three solitaire adventures, written by Michael A. Stackpole for the Tunnels & Trolls roleplaying game, were published by Flying Buffalo across nearly a decade, from City of Terrors in 1978 to the Red Circle module in 1987. Solitaire adventures in this format are designed to be played without a game master, with the reader making choices and following branching paths through the adventure.
City of Terrors (1978) and Sewers of Oblivion (1980) are the earlier two entries, with the third — Tunnels & Trolls Solo Adventure 21: Red Circle, Fantasy Role Playing Game Module — arriving in 1987. For fans of classic tabletop fantasy gaming, these modules represent an early and influential approach to solo play in the genre.