Iron Savior is a German power metal band that was formed in Hamburg in 1996. Following a period of several years working behind the scenes in music production, multi-instrumentalist and producer/engineer Piet Sielck joined with former Helloween bandmate Kai Hansen and then-drummer for Blind Guardian, Thomen Stauch in a new project that would blend power metal with a high-concept science fiction story. The band's debut album Iron Savior introduced the story that would be told over the course of multiple albums, featuring a self-aware space vessel called the Iron Savior and its relationship to the mythical lost civilization of Atlantis.

Kai Michael Hansen is a German musician who is the founder, lead guitarist and vocalist of power metal band Gamma Ray. He is also one of the co-founders of another power metal band Helloween, which he was a part of from 1983 to 1989 and rejoined in 2016. He is a prominent figure in power metal and has sold millions of albums worldwide. He is regarded as "the godfather of power metal", having founded two seminal bands in the genre. In 2011, he joined the band Unisonic featuring former Helloween vocalist Michael Kiske. Hansen and Kiske reunited with Helloween in 2017 for a world tour with all current members, celebrating the 30-year anniversary of release of the albums Keeper of the Seven Keys Parts I and II.