* ''[[The Dusted Variations]]'' (2005) – bonus disc of Enigma covers in ''[[15 Years After]]''
* ''[[A_Posteriori_(album)#Private_Lounge|A Posteriori (Private Lounge Remixes)]] (2007) – several remixes based on tracks from [[A_Posteriori_(album)|A Posteriori]], exclusive to iTunes
===Bootleg albums===
'''Note:''' These albums are bootleg copies of songs done by other artists and packaged as created by Enigma.
*''Metamorphosis'' – Bootleg album released in anticipation of ''[[The Screen Behind the Mirror]]''
*''Erotic Dreams'' – album ''Temple of Love'' by ''Erotic Dreams'' project, originally released in 1998 from Dino Music in Holland.
*''Sleep'' – Bootleg album of [[Conjure One]] songs.
*''Matrix ]['' – A song by [[The Cynic Project]] commonly mislabeled as being written by Enigma
*''Dream On'' – an [[Andru Donalds]] CD [[Snowin' Under My Skin]] mislabeled as Enigma
*''Valley of Dreams'' – Bootleg album released in anticipation of ''[[A Posteriori]]''
*''Enigma5'' – Bootleg album from Shanghai released before Voyaguer, the album was very shoddily made and never gained much publicity outside of Shanghai''
*''Enigma- Best:'' – This album seems to have been reproduced in more than 4 different forms, each with their own tracklisting. Album artwork for these albums are not worth looking at and the albums are not too brilliantly made, although all of the tracks are real Enigma, except ''Snow in the Sahara'' (by Anggun)
*''Enigma & D-Emotion Project'' – Bootleg album.