.
| Enigma
01: Sadness Part 1 (Radio Edit) 02: Sadness Part 1 (Extended Trance Mix) 03: Sadness Part 1 (Meditation Mix) 04: Sadness Part 1 (Violent US Remix)
| | Virgin UK | DINSD 101 | Dec 1990 | CD Single | 1 | 8.5 | |
| Enigma
01: Principles Of Lust (Radio Edit) 02: Principles Of Lust (Omen Mix) 03: Principles Of Lust (Jazz Mix) 04: Sadness (Radio Edit)
| | Virgin UK | DINSD 110 | 29 Jul 1991 | CD Single | 1 | | |
| Enigma
01: Return To Innocence (Radio Edit) 02: Return To Innocence (Long And Alive Version) 03: Return To Innocence (380 Midnight Mix) 04: Return To Innocence (Short Radio Edit)
| | Virgin UK | DINSD 123 | 4 Jan 1994 | CD Single | 1 | | |
| Enigma
01: The Eyes Of Truth ( Radio Edit) 02: The Eyes Of Truth ( Album Version) 03: The Eyes Of Truth ( The Gotterdamerung Mix) ( The Twilight Of The Gods) 04: The Eyes Of Truth ( Dub Version)
| | Virgin UK | DINSD 126 | May 1994 | CD Single | 2 | | |
| Enigma
01: The Eyes Of Truth (The Götterdämmerung Mix) 02: Sadness Part 1 (Extended Trance Mix) 03: Mead Culpa Part II (Fading Shades Mix) 04: Principles Of Lust (Omen Mix)
| | Virgin UK | DINSDX 126 | May 1994 | CD2 | 0 | | |
| Enigma
01: Age Of Loneliness (Radio Edit) 02: Age Of Loneliness (Clubby Radio Edit) 03: Age Of Loneliness (Enigmatic Club Mix) 04: Age Of Loneliness (Jam And Spoon Remix) 05: Age Of Loneliness (Album Version)
| | Virgin UK | DINSD 135 | 8 Aug 1994 | CD Single | 0 | | |
| Enigma
01: Age Of Loneliness (Enigmatic Club Mix) 02: Return To Innocence (380 Midnight Mix) 03: Sadness Part 1 (Meditation Mix) 04: Principles Of Lust (Everlasting Lust Mix)
| | Virgin UK | DINSDX 135 | 8 Aug 1994 | CD2 | 1 | | |
| Enigma
01: Beyond The Invisible (Radio Edit) 02: Almost Full Moon 03: Beyond The Invisible (Album Version) 04: Light Of Your Smile
| | Virgin UK | DINSD 155 | 1996 | CD Single | 2 | | |
| Enigma
01: T.N.T. For The Brain (Radio Edit) 02: T.N.T. For The Brain (Midnight Man Remix) 03: T.N.T. For The Brain (Album Version) 04: T.N.T. For The Brain (Instrumental Mix)
| | Virgin UK | DINSD 161 | 1997 | CD Single | 1 | | |
| Enigma
01: Push The Limits (Radio Edit) 02: Push The Limits (ATB Radio Remix) 03: Push The Limits (ATB Remix)
| | Virgin UK | DINSD205 | 2000 | CD Single | 1 | | |
| Enigma
01: Boum Boum (Chicane Radio Edit) 02: Boum Boum (Original Radio Edit) 03: Boum Boum (Chicane Club Mix) 04: Boum Boum (Wally Lopez Vox) 05: Boum Boum (Video)
| | Virgin UK | BOUMCD001 | 2004 | CD Single | 0 | | |