Books
- Today's Stellar Patrol: Instruction Manual for Planetfall. 1984
- The Hitchhiker's Guide to the Galaxy Instruction Manual. 1987
- Stationfall Official Technical Manual. 1987
- Return to Zork: Encyclopedia Frobozzica. 1993
- Zork
- The Flathead Calendar 883.
- Zork Zero Instruction Manual. 1988
- Zork I Instruction Manual. 1987
- G.U.E. on Nine Zorkmids a Day: Instruction Manual for Zork II: The Wizard of Frobozz. 1984
- Frobozz Co International Annual Report 778 GUE: Instruction Manual for Zork III: The Dungeon Master. 1984