| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Ill Wind | Marshal Tenner Winter | 2013 | English | |
| Illuminismo Iniziato | Michael J. Coyne | 2018 | English | |
| Immune System | Naomi Abramowicz | ? | English | |
| Impetum Maleficus | Hamish McIntyre | 2016 | English | |
| Improv: Origins | Neil deMause | 2022 | English | Solution |
| In a Manor of Speaking | Hulk Handsome | 2012 | English | |
| In Good Company | A. M. | 2016 | English | |
| Incredibly Mild Misadventures of Tom Trundle, The | Bill F. Lindsay | 2020 | English | |
| Inform(al)7 Abbreviated Self Tutorial, The | Jim Wilbur | ? | English | |
| Insomnio de una Noche de Verano | Jarel |
2002 | Spanish | |
| Island of Doctor Wooby, The | Ryan Veeder | 2015 | English | |
| Itch, a Berliner | Britta Nahrm | 2013 | German |