| Zylon the Aged | 398 GUE |
| The Lost City of Zork | 665~668 GUE |
| Zork Zero (prologue) | 789 GUE |
| Zork Zero: The Revenge of Megaboz | 883 GUE |
| The Forces of Krill | c. 883~910 GUE |
| Malifestro Quest | c. 883~910 GUE |
| Cavern of Doom | c. 883~910 GUE |
| Conquest of Quendor | c. 883~910 GUE |
| Dungeon | 948 GUE |
| Zork I: The Great Underground Empire | 948 GUE |
| The Philosopher's Stone | 948 GUE (parallel to Zork I) |
| Zork II: The Wizard of Frobozz | 948 GUE |
| Zork III: The Dungeon Master | 948 GUE |
| Zork: Nemesis-The Forbidden Lands | 949 GUE |
| Enchanter | 956 GUE |
| Sorcerer | 957 GUE |
| Zork Quest I: Assault on Egreth Castle | c. 957~966 GUE |
| Zork Quest II: The Crystal of Doom | c. 957~966 GUE |
| The Zork Chronicles | c. 957~966 GUE |
| Enchanter (novel) | c. 966 GUE |
| Spellbreaker |
966
GUE |
| Beyond Zork: The Coconut of Quendor | 966 GUE (parallel to Spellbreaker) |
| Zork: The Undiscovered Underground | 1066 GUE |
| Zork: Grand Inquisitor | 1067 GUE |
| Legends of Zork | c. 1067~1247 GUE |
| Wishbringer: The Magick Stone of Dreams | 1157 GUE |
| Wishbringer (novel) | c. 1157~1247 GUE |
| Return to Zork | 1647 GUE |
| Lurking Horror | sometime after the invention of
the automobile which was in the late 1300s to early 1400s |
| Dungeon | 1977~1979 | Dave Lebling, Marc Blank, Bruce Daniels, Tim Anderson |
| Zork I | 1980-11-XX | Dave Lebling, Marc Blank |
| Zork II | 1981-11-XX | Dave Lebling, Marc Blank |
| Zork III | 1982-08-18 | Dave Lebling, Marc Blank |
| Enchanter | 1983-08-10 | Dave Lebling, Marc Blank |
| The Forces of Krill | 1983-08-XX | Steve Meretzky |
| Malifestro Quest | 1983-09-XX | Steve Meretsky |
| Cavern of Doom | 1983-09-XX | Steve Meretsky |
| Sorcerer | 1984-01-31 | Steve Meretsky |
| Conquest of Quendor | 1984-10-XX | Steve Meretsky |
| Wishbringer | 1985-05-01 | Brian Moriarty |
| Spellbreaker | 1985-09-16 | Dave Lebling |
| Lurking Horror | 1987-05-06 | Dave Lebling |
| Beyond Zork | 1987-09-15 | Brian Moriarty |
| Zork Quest I | 1988-04-XX | Elizabeth Langosy |
| Zork Quest II | 1988-08-XX | Elizabeth Langosy |
| Wishbringer (novel) | 1988-08-XX | Craig Shaw Gardner |
| Zork Zero | 1989-03-23 | Steve Meretzky |
| Enchanter (novel) | 1989-04-XX | Robin W. Bailey |
| The Zork Chronicles | 1990-06-XX | George Alec Effinger |
| The Lost City of Zork | 1991-01-XX | Robin W. Bailey |
| Return to Zork | 1993-08-20 | Eddie Dombrower |
| The Philosopher's Stone | UNFINISHED | Nino Ruffini |
| Zork: Nemesis | 1996-02-29 | Cecilia Barajas |
| Zork: The Undiscovered Underground | 1997-08-28 | Marc Blank, Mike Berlyn |
| Zork: Grand Inquisitor | 1997-10-31 | Laird Malamed |
| Legends of Zork | 2009-04-01 | Jolt Online Gaming |
| Zork Trilogy | 1986 | COMPILATION (Zork 1, Zork 2, Zork 3) |
| Enchanter Trilogy | 1986 | COMPILATION (Enchanter, Sorcerer, Spellbreaker) |
| Zork Anthology | 1994 | COMPILATION (Zork 1, Zork 2, Zork 3, Beyond Zork, Zork Zero) |
| Zork Collection | COMPILATION |