Syphon Filter 2 (2000), Sony Computer Entertainment Europe Ltd.
Zork: The Undiscovered Underground (1997),
Bubsy 3D (1996), Accolade, Inc.
Journey: The Quest Begins (1988), Infocom, Inc.
Zork Zero: The Revenge of Megaboz (1989), Infocom, Inc.
Dungeon (1987),
Fooblitzky (1985), Infocom, Inc.
Enchanter (1983), Infocom, Inc.
Deadline (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.

Syphon Filter 3 (2001), SCEA
Ad Verbum (2000),
Syphon Filter 2 (2000), Sony Computer Entertainment Europe Ltd.
Syphon Filter (1999), 989 Studios
Bubsy 3D (1996), Accolade, Inc.
Curses (1993),
Journey: The Quest Begins (1988), Infocom, Inc.
Trinity (1986), Infocom, Inc.

Syphon Filter: The Omega Strain (2004), SCEA
Syphon Filter 3 (2001), SCEA
Syphon Filter 2 (2000), Sony Computer Entertainment Europe Ltd.
Syphon Filter (1999), 989 Studios
Bubsy 3D (1996), Accolade, Inc.

Syphon Filter: Dark Mirror (2006), Sony Computer Entertainment America, Inc.
Return to Zork (1993), Activision, Inc.

Border Zone (1987), Infocom, Inc.

Syphon Filter: The Omega Strain (2004), SCEA

The Witness (1983), Infocom, Inc.