Development history In 1990,
Alton Towers added the
Thunder Looper roller coaster; the addition was only temporary due to planning restrictions imposed on its installation. The park began planning for a new roller coaster on unused land adjacent to Thunder Looper. They desired a roller coaster that was big, different, and exciting. But they were constrained by the tree-level height limit imposed on the park. The first roller coaster proposed for the area was a twin tracked
racing wooden coaster, designed by
John Wardley. These plans were not built as they could not build it in time for the 1992 season. Alton Towers then approached
Arrow Dynamics for the new roller coaster. The Utah-based company was working on a prototype of a
pipeline roller coaster, similar to
TOGO's Ultratwister design. Tussauds directors rode Batman: The Ride prior to its May 1992 opening and wanted to add a similar ride to Alton Towers. The inverted roller coaster, dubbed "Secret Weapon 3", was planned throughout 1992. Wardley and Nick Varney, marketing director of Alton Towers, came up with the theme for "Nemesis" as an alien creature excavated from the ground. It opened as one of the first Bolliger & Mabillard rides to be installed outside the United States, along with
Diavlo at
Himeji Central Park, Japan, which opened four months later. In August 2004, Nemesis gained the
Guinness World Record for the "Most Naked People on a Rollercoaster". The ride set the record at 32 riders – the number of seats on a single Nemesis
train. It took the record from
Thorpe Park's
Nemesis Inferno roller coaster, which set the record at 28 just three months prior. The ride lost the record in 2010 when 40 naked riders boarded
Green Scream Rollercoaster at
Adventure Island. In 2009, Alton Towers received several complaints from nearby residents regarding increased noise emitted from the ride. New wheels had to be installed on the two trains before the ride returned to normal operation.
Retracking In January 2022, Alton Towers proposed retracking a majority of the roller coaster for maintenance reasons, including replacing 89 of the 117 support columns. Nemesis closed for the refurbishment on 6 November 2022, and reopened on 16 March 2024. In April 2023, Alton Towers revealed the new Nemesis track, which is black with red veins painted along the side. During the refurbishment, Alton Towers built an observation platform next to
Nemesis: Sub-Terra allowing up to 30 park guests at a time to view the construction taking place. A new promotional video was released on 3 November 2023 alluding to the backstory of the refurbished ride. On 8 January 2024, Alton Towers revealed that the coaster would be renamed Nemesis Reborn, and the opening date of 16 March was revealed on 21 February 2024. == Characteristics ==