| Code | Title | Description | Setting in Mystara | Cover |
| Year 1981 | Dungeones & Dragons Basic Set | Rules Supplement | Explicit | |
| Year 1983 | Dungeones & Dragons Basic Rules Set 1 | Rules Supplement | Explicit |
|
| B1 | In Search of the Unknown | Adventure | Implicit | |
| B2 | The Keep on the Borderlands | Adventure | Implicit | |
| B3 | The Palace of the Silver Princess | Adventure | Implicit | |
| B4 | The Lost City | Adventure | Explicit | |
| B5 | Horror on the Hill | Adventure | Implicit | |
| B6 | The Veiled Society | Adventure | Explicit | |
| B7 | Rahasia | Adventure | Implicit | |
| B8 | Journey to the Rock | Adventure | Implicit | |
| B9 | Castle Caldwell and Beyond | Adventure | Implicit | |
| B1-9 | In Search of Adventure | Adventure | Explicit | |
| B10 | Night's Dark Terror | Adventure | Explicit | |
| B11 | King's Festival | Adventure | Explicit | |
| B12 | Queen's Harvest | Adventure | Explicit | |
| BSOLO | Ghost of Lion Castle | Adventure | Explicit |