| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| 1 Line Cave Adventure | Digital Prawn, Einar Saukas | 2007 | English | Solution, Map |
| 12 Lost Souls | Len Townsend | 1987 | English | Solution, Map, Fixed game |
| 12:54 to Asgard, The | J. Robinson Wheeler | 2010 | English | Solution |
| 2604 | Admiral Jota | 2001 | English | Solution, Map |