| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| I.T. - Das Abenteuer des Jahrhunderts | Birkhäuser Verlag | 1984 | German | Solution, Map |
| I.T. - de Adventure van de Eeuw | Omikron | 1983 | Dutch | Solution, Map |
| I.T. - The Adventure of the Century | Addison-Wesley Publishers |
1983 | English | Solution, Map |
| Ice Princess, The | Falsoft Inc |
1985 | English | |
| Iconia | Falsoft Inc |
1987 | English | |
| Imperial Castle | Interface Publications | 1984 | English | Solution |
| In My Liverpool Home | Interface Publications | 1984 | English | Solution |
| Indy | Hobby Press, MicroHobby | 1987 | Spanish | |
| Input Adventure | Input Magazine | 1984 | English | Solution, Map, Hints |
| Intérieur | Hebdogiciel | 1985 | French | Solution |
| Interpol | ? | 1988 | German | Solution |
| Intrigue | Falsoft Inc |
1988 | English | |
| Isla de los Secretos, La | Anaya | 1984 | Spanish | |
| Island | Falsoft Inc |
1985 | English | |
| Island of Secrets | Usborne Publishing | 1984 | English | Solution |
| Island of the Penguins | Fontana Paperbacks | 1984 | English |