From Wikipedia
The Lost Treasures of Infocom is a collection of 20 computer games from interactive fiction pioneer Infocom, released in 1991. It was available in MS-DOS, Apple Macintosh, Amiga, and Apple IIGS versions, as well as a cross-platform CD-ROM version. Infocom was closed in 1989 by its then-parent company Activision. Still holding the copyright to nearly all the past Infocom titles, Activision bundled 20 of the most popular into this package. The games included are:
Zork I
Zork II
Zork III
Beyond Zork
Zork Zero
Enchanter
Sorcerer
Spellbreaker
Deadline
The Witness
Suspect
The Lurking Horror
Ballyhoo
Infidel
Moonmist
Starcross
Suspended
Planetfall
Stationfall
The Hitchhiker's Guide to the Galaxy