| Title | Year | Genre |
|---|---|---|
| Idol Janshi o Tsukucchaou | 1999 | Mahjong |
| Ikaruga | 2002 | Shooter |
| Illbleed | 2001 | Adventure |
| Imperial no Taka - Fighter of Zero | 2000 | Aerial fighting |
| Incoming - Ginrui Saishuu Kessen | 1998 | Action |
| Incoming | 1999 | Action |
| Industrial Spy - Operation Espionage | 2000 | Action |
| Inhabitants | 2005 | Puzzle |
| Inoue Ryoko - Last Scene | 2001 | Adventure |
| Inoue Ryoko - Roommate | 2002 | Adventure |
| Interlude | 2004 | Adventure |
| Intrepid Izzy | 2021 | Platform |
| Irides - Master of Blocks | 2005 | Puzzle |
| Iris | 2003 | Adventure |
| Iron Aces | 2001 | Aerial fighting |
| Izumo | 2004 | Adventure |
