Nachtmahr is the solo project of Thomas Rainer (also known for his other projects: L'Âme Immortelle and the now defunct Siechtum). Nachtmahr's musical style is best characterized as Techno Industrial.
Inspired by numerous years of DJing, Nachtmahr is self-described as "the missing link between merciless and provocative industrial music and the hammering power of techno".
In September 2007, Nachtmahr had its first release, "Kunst ist Krieg (i.e., Art is War)". The album's song "BoomBoomBoom", quickly became popular in industrial clubs around the world, and earned the band a slot on the soundtrack of the American blockbuster movie, Saw IV.
In 2008 Nachtmahr released its first full-length album entitled "Feuer frei". Like "Kunst Ist Krieg", it quickly gained popularity in industrial clubs. The single "Katharsis" joined "BoomBoomBoom" as a worldwide club hit, and helped the album stay in the top 10 of the German Deutsche Alternative Charts (DAC) for more than 6 weeks. Germany's biggest and most influential dark music magazine, ORKUS, even stated that "Feuer frei" was “the new standard for the electro industrial genre”. However, the album did fall under criticism for being too repetitive. While reviewers agreed it was a great album for the dancefloor, some felt it did little more than such, pointing out a lack of variation and originality between songs.
During this period, Nachtmahr extensively toured through North and Central America, Europe, and Russia - including major worldwide festivals like Wave-Gotik-Treffen, Kinetik Festival, and M'era Luna - whilst preparing their second full-time assault, "Alle Lust will Ewigkeit".
With it, the Austrian Industrial project continued on the uncompromising and relentless path of destruction with their now-trademark heavy distorted beats, driving bass lines, and addictive melodies. This notably lead "Alle Lust will Ewigkeit" to the No. 1 positions for both single and album in the Deutsche Alternative Charts.
In 2010, Nachtmahr's third album "Semper Fidelis" was released, again placing highly in the German charts.
In 2011, Nachtmahr announced plans to expand their live touring scope, landing gigs in Australia, Ireland, and the United Kingdom.