| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Carma | Marnie Parker | 2001 | English | Hints |
| Cave of Morpheus, The | Mark Silcox | 2001 | English | |
| Chasing, The | Anssi Räisänen | 2001 | English | Solution, Map |
| Coast House, The | Stephen Newton | 2001 | English | Solution, Map |
| Colours | J. Robinson Wheeler | 2001 | English | Solution |
| Cruise, The | Norman Perlmutter | 2001 | English | |
| Crusade | John Gorenfeld | 2001 | English |