The festival started in 2010 with two stages, the main stage Helviti and secondary stage Hades. The Upcoming Stage was introduced in 2011 for unsigned bands and was renamed Pandæmonium in 2012. In 2019 the Pandæmonium stage was upgraded to mid size bands and a new stage called Gehenna was added as the smallest stage.
By year
Copenhell 2010
Copenhell 2010 took place from Friday 11 June to Saturday 12 June.
Copenhell 2012 took place from Friday 15 June to Saturday 16 June including a warmup day on Thursday the 14th. On this day the Danish bands Red Warszawa, Mordax and Svartsot played for the visitors who had tickets that included accommodation (tents).
Copenhell 2013 took place from Friday 14 June to Saturday 15 June, including a warmup day on Thursday 13 June. The Thursday bill this year featured Danish bands Fall of Pantheon, Deus Otiosus, and Hatesphere, as well as the British metalcore band The Defiled, all of whom performed on the Pandæmonium stage.
Copenhell 2014 took place from Wednesday 11 June to Friday 13 June. The days have been changed from the usual Thursday-Saturday dates to accommodate Iron Maiden.
Copenhell 2014 was, for the first time in the festival's history, a full 3-day festival.
