999: Nine Hours, Nine Persons, Nine Doors
| Relation | Kyokugen Dasshutsu 9-Jikan 9-Nin 9 no Tobira |
| Title | 999: Nine Hours, Nine Persons, Nine Doors |
| Type | Complete |
| Language | English |
| Publication | Non-free, commercial |
| Platform | Nintendo DS |
| Medium | 1 Cartridge |
| Voiced | Not voiced |
| Animation | Story: Simple animations |
| Released | 2010-11-22 |
| Age rating | 17+ |
| Publisher | Aksys Games |
| UPC | 893610001402 |
| Catalog no. | NTR-P-BSKE |
| Links | Official website |