| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Cacodemon | Adventure PD |
? | English | |
| Code, The | Soft Concern | 1984 | English | Solution, Map |
| Codebook Caper | Scorpio Gamesworld |
1984 | English | Map, Hints |
| Codename Midnight Sun | John Betteridge |
2006 | English | |
| CODENAME OBSCURA | Mika Kujala | 2023 | English | |
| Codename: Iceman | Sierra On-Line |
1989 | English | Solution |
| Codename: Intrepid | ? | 1983 | English | |
| Codetopia | Bits Bair | ? | English | |
| Codeword Arguseye in Secret Mission | Kingsoft | 1984 | English | Solution |
| Codex Sadistica: A Heavy-Metal Minigame | grave snail games | 2021 | English | |
| Harry Potter Code Game | British International School of Washington | 2022 | English | |
| Trouble From the Past | Michael Kennedy | 2022 | English |