Lunar Strain is the debut album by Swedish melodic death metal band In Flames. In this release, vocals were sung by Mikael Stanne, the vocalist of Dark Tranquillity, who was a session musician for In Flames at the time. The album is known for its "folky elements" with the inclusion of violins and acoustic guitars. Three of the songs are re-recorded versions of tracks from the band's 1993 demo. In 1999, it was re-released in Japan and included all the tracks of the Subterranean EP, under the title Lunar Strain & Subterranean. In the 2003 Regain Records version of the re-release, the songs order differs slightly with "Clad in Shadows" being the second track shifting the rest down by one. However, the discrepancy is not apparent in album track listing, being mislabeled as the below. The album was re-released, and remastered with bonus tracks in 2005 under Regain Records and Candlelight Records USA with the same artwork but the more modern logo seen from the album Reroute to Remain to Come Clarity. The bonus tracks are actually from In Flames' 1993 Promo, which contained "alternative mixed versions of the album recordings."