Arthur: The Quest for Excalibur (1989), Infocom, Inc.
James Clavell's Shogun (1988), Infocom, Inc.
Zork Zero: The Revenge of Megaboz (1989), Infocom, Inc.
Dungeon (1987),
The Lurking Horror (1987), Infocom, Inc.
Spellbreaker (1985), Infocom, Inc.
Suspect (1984), Infocom, Inc.
Enchanter (1983), Infocom, Inc.
Starcross (1982), Infocom, Inc.
Zork III: The Dungeon Master (1982), Infocom, Inc.
Zork II: The Wizard of Frobozz (1981), Infocom, Inc.
Zork: The Great Underground Empire (1980), Infocom, Inc.

Curses (1993),
James Clavell's Shogun (1988), Infocom, Inc.
Zork Zero: The Revenge of Megaboz (1989), Infocom, Inc.
Trinity (1986), Infocom, Inc.

Alienators: Evolution Continues (2001), Activision Publishing, Inc.
Return to Zork (1993), Activision, Inc.

Beyond Zork: The Coconut of Quendor (1987), Infocom, Inc.
The Witness (1983), Infocom, Inc.