 In 2002, after the opening of Colossus, Thorpe Park officially announced the addition of Nemesis Inferno in 2003. Construction took place throughout 2002 with the first test run being completed in December 2002. Nemesis Inferno officially opened to the public on 5 April 2003. According to Nikki Nolan of The Tussauds Group who operated the park at the time, the ride was installed just one year after Colossus to "help transform Thorpe Park into a real thrill park".
