| key specs |
| Genre | RPG | RPG |
| Platform | Nintendo Switch, PlayStation 4 (PS4), PC: Windows | Nintendo Switch, PlayStation 4 (PS4), Xbox One, PC: Windows |
| Modes | Single-player | Single-player |
| Series | The Caligula Effect | - |
| PEGI Rating | 18+ | 16+ |
| general |
| Brand | NIS America | Riot Games |
| Model | The Caligula Effect: Overdose | Ruined King: A League of Legends Story |
| Release date | March 15, 2019 | November 16, 2021 |
| Publisher | NIS America | Riot Forge |
| Developer | FURYU Corporation | Airship Syndicate |
| Director | Takuya Yamanaka | Joe Madureira |
| Writer | Tadashi Satomi | Frank Barbiere |
| Composer | Tsukasa Masuko | Gareth Coker |
| Genre | RPG | RPG |
| Series | The Caligula Effect | - |
| Age Rating (PEGI) | 18+ | 16+ |
| Platform | Nintendo Switch, PlayStation 4 (PS4), PC: Windows | Nintendo Switch, PlayStation 4 (PS4), Xbox One, PC: Windows |
| Game Modes | Single-player | Single-player |
| DLC | Yes | Yes |
| Enhanced for PS4 Pro/ Xbox One X | - | Yes |