| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| C.I.A. Adventure | CLOAD |
1980 | English | Solution, Map, Fixed game |
| Cairo Connection, The | Logyk Software | 1993 | English | Solution, Map, Hints |
| Canapés of Death, The | Cedric V. F. Knight | 2003 | English | Solution, Map |
| Canasto Rebellion, The | Trevor Taylor | 1988 | English | Solution |
| Caverns of Jupiter | Interface Publications | 1983 | English | Solution, Map |
| Chicago | Olav Frijns, Otto Steinbush | 1990 | Dutch | |
| CIA | Avon Camelot Books | 1984 | English | Solution, Map |
| CIA Agent 009 | Greg Cetton | ? | English | Solution |
| Code, The | Soft Concern | 1984 | English | Solution, Map |
| Codename: Iceman | Sierra On-Line |
1989 | English | Solution |
| Complex | Wade Clarke |
1988 | English | |
| Contract | Nationsoft | 1985 | English | |
| Corporal Stone | Zenobi Software |
1992 | English | Solution |
| Cortizone | Zenobi Software |
1990 | English | Solution, Map |
| Crack City | Zenobi Software |
1989 | English | Solution |
| Crime Time | Starbyte | 1990 | English | Solution |
| Crime Time | Starbyte | 1990 | German | Solution |
| Critical Mass | Sirius Software | 1983 | English | Solution |