| Series | Created by | Games | Genre |
|---|---|---|---|
| I Wanna Be The Guy | — | 3 | platform game |
| Icewind Dale | — | 4 | role-playing video game |
| Idol Land PriPara | — | 1 | — |
| Idoly Pride | — | 1 | — |
| IHF Handball Challenge | — | 6 | handball video game |
| Illusion | — | 6 | platform game |
| Imagine | — | 16 | simulation video game |
| In the Groove | Roxor Games | 1 | dance video game |
| Incredible Crash Dummies | — | 1 | — |
| InFamous | — | 4 | science fiction video game, action-adventure game |
| Injustice | NetherRealm Studios | 1 | fighting game |
| International Basketball Manager | — | 2 | sports management video game |
| International Cricket Captain | — | 5 | sports video game |
| Into the Radius | CM Games | 2 | first-person shooter, survival game |
| Invizimals | — | 6 | — |
| Inyochu | CyberWorks | 1 | — |
| Ishar | Silmarils | 4 | role-playing video game |
| Izumo | — | 5 | — |