| Ideas and Inspiration for Fantasy and Science Fiction Writers | Good Looking Corpse | epubmobipdfpng | |
| If I Were a Lich, Man | Magpie Games | zip | |
| IIWALM PrintNPlay Cards | | pdf | |
| IIWALM PrintNPlay Dreidels | | pdf | |
| images | | png+jpg | |
| Improv for Gamers Second Edition | Evil Hat Productions | pdfzip | |
| Improv for Gamers: Locations Deck | Evil Hat Productions | pdf | |
| Improv for Gamers: Points of View Deck | Evil Hat Productions | pdf | |
| Improv for Gamers: Relationships Deck | Evil Hat Productions | pdf | |
| In die Tiefen | Eichhörnchen Rollenspiele | epubpdf | |
| In the Shadow of Tower Silveraxe | Gelatinous Cubism | pdfpng | |
| In This World | | pdf | |
| index | | html | |
| Index To Challenge Magazine 25-77 | Game Designers' Workshop (GDW) | pdf | |
| Inevitable: A Doomed Arthurian Western RPG | SoulMuppet Publishing | pdf | |
| Inevitable: Quickstart | SoulMuppet Publishing | zip | |
| Infernum - Book of the Damned | Mongoose | pdf | |
| Instant Location 3 - The Enchanted Trove | Story Maker Games | pdf | |
| Into Debt Goes Ank | Greg Stolze | azw3epubmobipdf | |
| Into the Dark | Off Guard Games | pdf | |
| Into the Many-Towered Twilight | Nikoline | jpgpdf | |
| Into the Outlands | Dream Pod 9 | pdf | |
| Into the Shadows | Lost Heretic Press | pdfzip | |
| Intriguing NPCs #1 | The Halls of Gaming | pdf | |
| Invasion of the Vespoids | Wood Planet Gaming Lodge | pdfpng | |
| Iron Edda: World of Metal and Bone | zzz-TheOtherDev Productions-closed | pdf | |
| Ironhill Citadel: Virtual Boxed Set© | 0one Games | zip | |
| Islands 1 | Frog God Games | zip | |
| Islands 2 | Frog God Games | zip | |
| Islands 3 | Frog God Games | zip | |
| The Isle of Glaslyn | Leyline Press | pdf | |