Lunar Strain is the debut studio album by Swedish heavy metal band In Flames, released in April 1994. The album is known for its "folky elements", with the inclusion of violins and acoustic guitars.

In Flames is a Swedish heavy metal band, formed by guitarist Jesper Strömblad in Gothenburg in 1990. Their lineup has changed several times, with vocalist Anders Fridén and guitarist Björn Gelotte being the only consistent members since 1995. Alongside At the Gates and Dark Tranquillity, In Flames has pioneered the genres known as Swedish death metal and melodic death metal, and as of 2008, has sold over two million records worldwide.