- Adventure (with Donald Woods; 1976; FORTRAN).
- The 1976 date refers to the "canonial" version; the original version's date is uncertain, but usually thought to be either 1972 or 1975.
- Also known as Advent, Colossal Cave, Colossal Cave Adventure, and other titles. There are many ports and translations of this game; see the Adventure page.
As a reference:
- Spelunker's Quest (Tom Murrin; 2009; Z-code). William Crowther is the subject of an oil painting in one location.