| Infocom Z-Machine code |  Suspended - Interlogic Science Fiction Ver.8 | 1983 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | The Witness - An Interlogic Mystery Ver.13 | 1983 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | The Witness - An Interlogic Mystery Ver.18 | 1983 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | The Witness - An Interlogic Mystery Ver.20 | 1983 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | The Witness - An Interlogic Mystery Ver.21 | 1983 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | The Witness - An Interlogic Mystery Ver.22 | 1983 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | Zork I - The Great Underground Empire Ver.75 | 1983 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | Zork I - The Great Underground Empire Ver.76 | 1983 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | Zork II - The Wizard of Frobozz Ver.22 | 1983 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | Zork II - The Wizard of Frobozz Ver.23 | 1983 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | Zork III - The Dungeon Master Ver.15 | 1983 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | Zork III - The Dungeon Master Ver.16 | 1983 | Infocom, Inc. MA, USA 51051 |
| Atari 400/800 disk |  Enchanter Model 1Z4-AT1 | 1983 | Infocom, Inc. MA, USA 51051 |
| Atari 400/800 disk | Infidel Model IA1-AT1 | 1983 | Infocom, Inc. MA, USA 51051 |
| Atari 400/800 disk | Planetfall Model IS3-AT1 | 1983 | Infocom, Inc. MA, USA 51051 |
| Atari 400/800 disk | Suspended Model IS2-AT1 | 1983 | Infocom, Inc. MA, USA 51051 |
| Atari 400/800 disk | The Witness Model IM2-AT1 | 1983 | Infocom, Inc. MA, USA 51051 |
| Apple Macintosh disk | Deadline Model IM1-AP2 | 1983 | Infocom, Inc. MA, USA 51051 |
| Atari ST disk | Zork II- The Wizard of Frobozz Model IZ2-AT2 | 1983 | Infocom, Inc. MA, USA 51051 |
| Atari ST disk | Zork III- The Dungeon Master Model IZ3-AT2 | 1983 | Infocom, Inc. MA, USA 51051 |
| IBM PC 5.25in. disk | Enchanter Model IZ4-IB1 | 1983 | Infocom, Inc. MA, USA 51051 |
| IBM PC 5.25in. disk | Planetfall Model IS3-IB1 | 1983 | Infocom, Inc. MA, USA 51051 |
| IBM PC 5.25in. disk | Suspended Model IS2-IB1 | 1983 | Infocom, Inc. MA, USA 51051 |
| IBM PC 5.25in. disk | The Witness Model IM2-IB2 | 1983 | Infocom, Inc. MA, USA 51051 |
