| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Clear-up in Cloggieland | Harold Dixon | ? | English | Solution |
| Cloak of Darkness | Roger Firth | 1999 | English | Solution, Map |
| Colditz Escape | Adventure Probe Software |
1986 | English | |
| Crystal Keepers | Doreen Bardon | 2001 | English | Solution |