| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Illuminismo Iniziato | Michael J. Coyne | 2018 | English | |
| Innuh's Pyramid | ? | 2018 | English | Solution, Map |
| Into the Dungeon | Millenium Games | 2018 | English | |
| Into the Dungeon 2 | Millenium Games | 2018 | English | |
| ISS Emergency! | John Leonard |
2018 | English | Solution |
| Iunnuh 2 The Curse from the Past | Aristide Torrelli, Davide Bucci | 2018 | English |