| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Indiana Jones II | Péter Nyitrai | 1990 | English | Solution |
| Innuh's Pyramid | ? | 2018 | English | Solution, Map |
| Insel der 1000 Gefahren, Die | ? | ? | German | Solution |
| Interpol | ? | 1988 | German | Solution |
| Invincible, The | ? | ? | German | Solution, Map |
| ISS Emergency! | John Leonard |
2018 | English | Solution |