tiefenrausch is a long-running indoor psytrance party based in the lucerne area, with records of editions going back to at least 2008 and a seventh-anniversary edition documented in 2015, placing it among the more established recurring club events in central switzerland. it runs two floors: a main floor focused on progressive trance, and a second floor curated by t-emotions, a psytrance label out of bern.

the 2026 edition carries a pond and swamp aesthetic through its visual concept, with decoration handled by bonitas art and progvision deco. the event is held at sedel, a well-known cultural and event space on the outskirts of lucerne.