| Atari 400/800 disk |  Suspended Model IS2-AT1 | 1983 | Infocom, Inc. MA, USA 51051 |
| CP/M 8in. disk | Suspended Model IS2-CP1 | 198? | Infocom, Inc. MA, USA 51051 |
| DEC PDP-11 disk | Suspended Model IS2-DE1 | 198? | Infocom, Inc. MA, USA 51051 |
| DEC Rainbow 100 disk | Suspended Model IS2-DE2 | 198? | Infocom, Inc. MA, USA 51051 |
| Epson QX-10 disk | Suspended Model IS2-EP1 | 198? | Infocom, Inc. MA, USA 51051 |
| IBM PC 5.25in. disk | Suspended Model IS2-IB1 | 1983 | Infocom, Inc. MA, USA 51051 |
| Kaypro disk | Suspended Model IS2-KA1 | 198? | Infocom, Inc. MA, USA 51051 |
| NEC PC-8000 disk | Suspended Model IS2-NE1 | 198? | Infocom, Inc. MA, USA 51051 |
| NEC Advanced PC disk | Suspended Model IS2-NE2 | 198? | Infocom, Inc. MA, USA 51051 |
| Osborne-1 disk | Suspended Model IS2-OS1 | 198? | Infocom, Inc. MA, USA 51051 |
| Texas Instruments Professional disk | Suspended Model IS2-TI1 | 198? | Infocom, Inc. MA, USA 51051 |
| Texas instrument TI-99/4A disk | Suspended Model IS2-TI2 | 198? | Infocom, Inc. MA, USA 51051 |
| TRS-80 disk | Suspended Model IS2-TR1 | 1983 | Infocom, Inc. MA, USA 51051 |
| TRS-80 disk | Suspended Model IS2-TR3 | 1983 | Infocom, Inc. MA, USA 51051 |
| Commodore C64 disk |  The Four-In-One Infocom Sampler Model ID2-CO1 | 1984 | Infocom, Inc. MA, USA 51051 |
| Coleco Adam disk | The HitchHiker's Guide to the Galaxy | 1984 | Infocom, Inc. MA, USA 51051 |
| Amstrad CPC/PCW disk | The Hitchhiker's Guide to the Galaxy | 1984 | Infocom, Inc. MA, USA 51051 |
| Tatung Einstein disk | The Hitchhiker's Guide to the Galaxy | 1984 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code |  The Hitchhiker's Guide to the Galaxy SG Ver.31 | 1984 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | The Hitchhiker's Guide to the Galaxy Ver.42 | 1984 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | The Hitchhiker's Guide to the Galaxy Ver.47 | 1984 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | The Hitchhiker's Guide to the Galaxy Ver.56 | 1984 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | The Hitchhiker's Guide to the Galaxy Ver.58 | 1985 | Infocom, Inc. MA, USA 51051 |
| Infocom Z-Machine code | The Hitchhiker's Guide to the Galaxy Ver.59 | 1985 | Infocom, Inc. MA, USA 51051 |
| ACT Apricot PC Xi disk | The HitchHiker's Guide to the Galaxy Model IS4-AC1 | 198? | Infocom, Inc. MA, USA 51051 |
| Apple II 5.25 disk | The Hitchhiker's Guide to the Galaxy Model IS4-AP1 | 1984 | Infocom, Inc. MA, USA 51051 |
| Apple Macintosh disk | The HitchHiker's Guide to the Galaxy Model IS4-AP2 | 1984 | Infocom, Inc. MA, USA 51051 |
| Atari 400/800 disk | The Hitchhiker's Guide to the Galaxy Model IS4-AT1 | 1984 | Infocom, Inc. MA, USA 51051 |
| Atari ST disk | The Hitchhiker's Guide to the Galaxy Model IS4-AT2 | 1984 | Infocom, Inc. MA, USA 51051 |
| Commodore C64 disk | The Hitchhiker's Guide to the Galaxy Model IS4-CO1 | 1984 | Infocom, Inc. MA, USA 51051 |
| Commodore Amiga 500 disk | The Hitchhiker's Guide to the Galaxy Model IS4-CO4 | 198? | Infocom, Inc. MA, USA 51051 |
| Epson QX-10 disk | The HitchHiker's Guide to the Galaxy Model IS4-EP1 | 198? | Infocom, Inc. MA, USA 51051 |
| IBM PC 5.25in. disk | The Hitchhiker's Guide to the Galaxy Model IS4-IB1 | 1984 | Infocom, Inc. MA, USA 51051 |
| IBM PC 5.25in. disk | The HitchHiker's Guide to the Galaxy Model IS4-IB2 | 198? | Infocom, Inc. MA, USA 51051 |
| Kaypro disk | The HitchHiker's Guide to the Galaxy Model IS4-KA1 | 198? | Infocom, Inc. MA, USA 51051 |
| Osborne-1 disk | The HitchHiker's Guide to the Galaxy Model IS4-OS1 | 198? | Infocom, Inc. MA, USA 51051 |
| TRS-80 CoCo disk | The Hitchhiker's Guide to the Galaxy Model IS4-TA4 | 198? | Infocom, Inc. MA, USA 51051 |
| Texas instrument TI-99/4A disk | The HitchHiker's Guide to the Galaxy Model IS4-TI2 | 198? | Infocom, Inc. MA, USA 51051 |
| IBM PC 5.25in. disk | The Hobbit | 1984 | Infocom, Inc. MA, USA 51051 |
| Apple II/IBM PC disk | The Infocom Sampler | 1987 | Infocom, Inc. MA, USA 51051 |
