There are 14 repositories under infocom topic.
Zork I (Microcomputer Version) by Infocom
The Hitchhiker's Guide to the Galaxy, by Steve Meretzky and Douglas Adams (Infocom)
Mainframe Version of Zork (Infocom)
A fast and compact library for writing text adventure games for the Z-machine running on 8-bit computers as well as other platforms.
Zork I (Microcomputer Version) (Solid-Gold Edition) by Infocom
Zork III (Infocom)
Planetfall, by Steve Meretzky (Infocom)
Zork II (Microcomputer Version) (Infocom)
A Z-machine interpreter for the Commodore 64 and similar computers
Deadline by Marc Blank (Infocom)
Beyond Zork: The Coconut of Quendor by Brian Moriarty (Infocom)
The Restaurant at the End of the Universe (Incomplete, Unreleased) (Infocom)
Bureaucracy, by Infocom
Enchanter (Zork IV) by Marc Blank and Dave Lebling (Infocom)
Trinity by Brian Moriarty (Infocom)
A Mind Forever Voyaging, by Steve Meretzky (Infocom)
Suspended by Mike Berlyn (Infocom)
Infidel by Mike Berlyn (Infocom)
Stationfall, by Steve Meretzky (Infocom)
The Lurking Horror, by Dave Lebling (Infocom)
Leather Goddesses of Phobos Gold Edition, by Steve Meretzky (Infocom)
Starcross by Dave Lebling
Wishbringer: The Magick Stone of Dreams by Brian Moriarty (Infocom)
James Cameron's The Abyss (Unfinished, Unreleased) by Bob Bates, Infocom
Leather Goddesses of Phobos, by Steve Meretzky (Infocom)
Sherlock: The Riddle of the Crown Jewels, by Bob Bates of Infocom (1987)
The Witness, by Stu Galley (Infocom)
Z-Machine interpreter for Android
Spellbreaker (ARCHMAGE, MAGE, ZORK 6) by Dave Lebling (Infocom)
Arthur: The Quest for Excalibur, by Bob Bates of Infocom (1989)
Sorcerer by Steve Meretzky (Infocom)
Cutthroats, by Michael Berlyn and Jerry Wolper (Infocom)
Border Zone, by Marc Blank (Infocom)
James Clavell's Shōgun by Dave Lebling of Infocom (1989)
Hollywood Hijinx, by Hollywood Dave Anderson (Infocom)