The four-day event was organised every summer in Tampere in late June or early July.
While its primary focus was on music, covering musical genres such as gothic rock, deathrock, industrial, EBM and neofolk, other cultural and arts events were also organised as part of the festival.
Lumous Festival consisted mainly of club nights organised in bars and clubs at the centre of Tampere, and also included a cruise dubbed die dunkle Seereise on the lake Pyhäjärvi.
Lumous was organised yearly by Lumous Gothic Ry, and its history dates back to 2001 when a handful of Tampere club nights decided to join forces and organise a three-day event called Extreme Gothic Weekend with performances from Two Witches, Nik, The Candles Burning Blue and Viola.
Previous years have seen international acts such as Zombina and the Skeletones, Das Ich, Haujobb, Pro-jekt and Killing Miranda play at Lumous, along with local bands such as Two Witches, Masquerade, Virgin in Veil and Suruaika.