| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| I.T. - The Adventure of the Century | Addison-Wesley Publishers |
1983 | English | Solution, Map |
| Ice Princess, The | Rüdiger Hanke | 1995 | English | Solution |
| Illumina | Finn Rosenløv | 2021 | English | Solution |
| Illumina | Finn Rosenløv | 2021 | Danish | Solution |
| Illuminismo Iniziato | Michael J. Coyne | 2018 | English | |
| In Quest of Chaos | Coco-Cassette, T&D Subscription Software | 1991 | English | |
| Indigo | Emily Short | 2011 | English | |
| Ingrid's Back! | Level 9 Computing |
1988 | English | Solution |
| Iron Wolves, The | Chronosoft | 2021 | English | Solution, Map |
| Isle of the Cult, The | Rune Berg | 2004 | English | Map |
| ISTHORN | Stuart S. Reeve | 1990 | English |