| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Schizo | Tomasso Caldarola | 2002 | Italian | |
| Shrapnel | Adam Cadre |
2000 | English | Solution |
| Sin Rumbo | Enrique D. Bosch | 2000 | Spanish | |
| Sin Sentido | Enrique D. Bosch | 2003 | Spanish | |
| Snowdrop | Andrew Broadhurst, Philip Broadhurst | 1987 | English | Solution |
| Sonidos Absolutos, Los | Pablo Martínez Merino |
2008 | Spanish | |
| Soy Anüak | Bubbi de Lucca, dddddd | 2010 | Spanish | |
| Space Under the Window, The | Andrew Plotkin | 1997 | English | |
| Suprematism in IF | Andrey Grankin | 2007 | English | |
| TWO | Adventuron Software | 2019 | English | Solution, Map, Puzzle chart |
| Visualizing | Marnie Parker | 1999 | English | Solution, Map |
| Zendyr's Labyrinth | Carlos Gomez |
2005 | English | |
| ZNA | Enrique D. Bosch | 2000 | Spanish |