dark coaster
n.β Β«βThe Dark Knight,β the ride, is atypical in a number of ways. It is what is known as a βdark coaster,β which means its twists, turns and drops are all indoors.Β» ββNewest coaster weak on thrills” by Steve Penhollow Journal Gazette (Fort Wayne, Indiana) June 6, 2008. (source: Double-Tongued Dictionary)
A “dark ride” is a British indoor ride, usually “educational” rather than thrilling, such as the Whisky Heritage Centre (Edinburgh) or the Oxford Story.