Dæmonen is a floorless steel roller coaster at the Tivoli Gardens amusement park in Copenhagen, Denmark. Designed by Bolliger & Mabillard, it reaches a height of 28 metres (92 ft), is 564.0 metres (1,850.4 ft) long, and reaches a maximum speed of 77 kilometres per hour (48 mph). The roller coaster features a vertical loop, an Immelmann loop, and a zero-gravity roll. Dæmonen replaced Slangen, a family roller coaster, and officially opened on 16 April 2004. A record number of guests attended the park that year, but the public has since given the ride mixed reviews.