| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Off-Season at the Dream Factory | B. J. Best | 2021 | English | Solution, Map |
| One Last Thing | Dee Cooke |
2020 | English | Solution, Map |
| Opposite Edge of Slumber | Artem Flo | 2020 | English | Solution, Map |
| Over Here! | Lionel Ange |
2020 | English | Solution, Map, Hints |