| Title | Type | Date | Platform | Names | Characters | Series |
|---|---|---|---|---|---|---|
| The Hitchhiker's Guide to the Galaxy | Book | 1979-10-12 | Douglas Adams | |||
| The Restaurant at the End of the Universe | Book | 1980 | Douglas Adams | |||
| Life, the Universe, and Everything | Book | 1982 | Douglas Adams | |||
| So Long, and Thanks for All the Fish | Book | 1984 | Douglas Adams | |||
| Mostly Harmless | Book | 1992 | Douglas Adams | |||
| The Ultimate Hitchhiker's Guide | Book | 1997 | Douglas Adams |