| getit | Maker | Status | Projects | Rating | Lang | Years | Additional Comments |
| - | H. Hoffmann | ? | 1 Game | - | - | 1995 | - |
| - | H. Lyppens Software Productions | ? | 2 Tools | - | - | 1992 | - |
| - | H. Mueller | ? | 47 Games | 46% | - | 1992-1995? | - |
| - | H. Spierling | ? | 1 Game | 41% | - | 1996 | - |
| - | H20 | ? | 10 Pictures | - | - | ? | - |
 | h2g2 URL | Active | 1 Website | - | en | ? | H2g2 is inspired by The Hitchhiker's Guide to the Galaxy, the best-selling book by Douglas Adams. H2g2 created an unconventional guide to life, the universe and everything. It's a guide that's written by the people who visit the h2g2 website - the Researchers - and which is available wherever you are in the world, vie PCs, handheld computers and mobile phones. The result is a living, breathing guide that's constantly being updated and revised, driven forward by the people who use it. |
| - | Haage & Partner | ? | 2 Tools | - | - | 1996? | - |
| Haage + Partner URL | Active | 2 Websites, 1 CD | - | de,en | 2001? | - |
| - | Haamujengi | ? | 1 Demo | 20% | - | 2002 | - |
| - | Habor | ? | 1 Game | 54% | - | ? | - |
| - | Hack n' Trade | Active | 1 Demo | 48% | en | 2001 | - |
| - | Hack.se | Active | 1 Demo | 69% | en | 2002 | - |
| - | Hacker Corp. | ? | 1 Game | - | - | 1987 | - |
| - | Haggeman | Active | 3 Modules | 78% | en | 2000-2002 | - |
| - | Hai N. Truong | ? | 1 Game | 20% | - | ? | - |
| - | Haiwan 2000 | Active | 1 Demo | 65% | en | 2002 | - |
| - | Hakan Thoerngren | ? | 1 Game | 19% | - | 1990 | - |
| Halcyon URL | Active | 3 Demos | 43% | en | 1996-2002 | Demo group. |
| - | Halef | ? | 1 Game | 20% | - | ? | - |
| - | Halo | ? | 4 Demos | 56% | - | 1994? | - |
| - | Ham | ? | 1 Module | 79% | - | 1996 | - |
| - | Hambo Productions | ? | 1 Game | 48% | - | 1994 | - |
| - | Hambo | ? | 1 Game | 47% | - | 1995 | - |
| - | Hanakawa | Active | 1 Demo | 14% | en | 2003 | - |
| - | Handmade Games | ? | 3 Games | 62% | - | 1993? | - |
| - | Hanna Barbera | ? | 1 Game | 50% | - | 1990 | - |
| Hannes Seifert URL | Active | 27 Modules | 67% | de,en | 1992-1995 | Company director from Neo Software! And he's a very talented musician. |
| - | Hans Butler | Active | 2 Pictures | 70% | en | 1995 | - |
| Hans Maurer URL | Active | 1 Website | - | en | ? | - |
| Hans Persson URL | Inactive | 1 Website | - | en | ? | This site tries to list all adventure games (interactive fiction) produced over the years. No RPGs are listed - only adventures. A paradise for all nostalgia freaks, because it contains background information about Infocom, Magnetic Scrolls and many other |
| - | Hans Peter Obermeier | ? | 1 Game | 49% | - | 1997 | - |
| Hansa URL | Active | 5 Demos | 71% | es,en | 2000-2002 | Demo group. |
| - | Haplo | Active | 1 Picture | 90% | - | 1998 | - |
| - | Happening Boiz | ? | 1 Game | 41% | - | 1991 | - |
| - | Harald Westphal | ? | 1 Tool | 57% | - | 1990 | - |
| - | Hard Drinking Dreamers | Active | 1 Demo | 66% | en | 2001 | - |
 | Hardfire MAIL | Active | 2 Modules, 1 Picture | 74% | - | 1999-2002 | - |
| - | Hardliners | ? | 2 Games | 36% | - | 1991? | - |
| - | HardNULL | Active | 1 Demo | 8% | en | 2003 | - |
| - | Hardread | Active | 2 Demos | 70% | en | 2001-2003 | - |
| - | Hari Wiguna | ? | 1 Game | - | - | ? | - |
| Harlequin Software URL | Active | 2 Games | 53% | en | 1993-1998 | They have made 'George and the repton clone' as well as other titles. |
| - | Harshy | ? | 1 Game | 24% | - | ? | - |
| - | Hartmut Westphal | ? | 1 Game | 30% | - | 1995 | - |
| Hartwerk URL (formerly called Aristo Soft) | Active | 1 Reference | - | de | - | Hartwerk is making serious programs for the Macintosh |
| - | Harvester | Active | 2 Demos | 79% | - | 1999 | - |
| - | Harvey | ? | 1 Module | 80% | - | ? | - |
| Hasbro Interactive URL (featuring Atari / Level 9) | Active | 2 References | - | en | - | Publisher of all Microprose / Team 17 / Atari games. |
| Hash Enterprises URL | ? | 5 Tools | - | - | 1988-1992? | - |
| - | Hatewares | ? | 1 Game | 36% | - | 1997 | - |
| getit | Maker | Status | Projects | Rating | Lang | Years | Additional Comments |
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