A name synonymous with interactive fiction, Infocom's prolific contributions to the genre are legendary for their superior quality and outstanding packaging. Combining vivid writing and logical puzzles with an excellent parser capable of understanding complex commands, Infocom games were equally notable for including a lavish variety of “feelies” with each product – imaginative props ranging from student handbooks and galactic postcards to 3D glasses and “magic” stones, some of which were crucial to solving the in-game puzzles.
Tombs & Treasure [June, 1991]
A Mind Forever Voyaging (APP2) [September 1, 1985]
Ballyhoo (APP2) [February, 1986]
Beyond Zork (APP2) [October 1, 1987]
Bureaucracy (APP2) 
The Hitchhiker's Guide to the Galaxy (PC) 
The Hitchhiker's Guide to the Galaxy (APP2) 
The Lurking Horror (APP2) [unknown]
Nord and Bert Couldn't Make Head or Tail of It (APP2) 
Trinity (APP2) 
Zork: The Great Underground Empire (APP2) 
Zork II: The Wizard of Frobozz (APP2) 
Zork III: The Dungeon Master (APP2) 
Zork I [March 15, 1996]
There are numerous companies in the industry, and their names change like the weather. The information above is not particular about the finer details. Acquisitions are common, so companies with no recent listings may still be developing games under a new name. For example, DMA Design currently has a Rockstar name. Do you know of a title that is not listed above but should be? Be sure and let a staff member know. You can contact staff if you click here.