| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| 1893: A World's Fair Mystery | Peter Nepstad | 2003 | English | |
| 2604 | Admiral Jota | 2001 | English | Solution, Map |
| 31. Oktober | Finn Rosenløv | 2022 | Danish | |
| 5 Minutes to Burn Something! | Alex Butterfield | 2015 | English | Solution |
| 69,105 Keys | David Welbourn | 2009 | English | Solution |
| 77 Verbs | Brian Rushton |
2020 | English | |
| 9:05 | Adam Cadre |
2000 | English | Solution |