| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Una de Dragones | Edlobez |
2014 | Spanish | |
| Unchanter | Jan Ã…berg | 1986 | English | |
| Under Cover of Darkness | Christopher Huang | 2000 | English | Map, Solution |
| Under Obstruction | Cody Gaisser | 2022 | English | |
| Unforgotten | Quintin Pan | 2005 | English | |
| Unfortunate Training of Frank Lee, Monkey Butler to Be, The | Josh Giesbrecht | 2001 | English | Map, Solution |
| Unidad 030307 con Destino 207 adC | Jose Safonte | 2007 | Spanish | |
| Unterwelt | Christoph Oleschinski | 2004 | German | |
| Upwards | Sam Kabo Ashwell | 2005 | English | Map, Solution |
| Upwards and Onwards | David Jacob Wildstrom | 2003 | English | Map, Solution |
| US Theatrical Cut, The | Cody Gaisser | 2022 | English |