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Demon

Steel Looper at Six Flags Great America, Gurnee, Illinois. Opened 1976.

By Theme Park Spot · Last reviewed November 8, 2026

Height
104 ft
Drop
90 ft
Top speed
45 mph
Length
2,130 ft
Inversions
4
Ride time
1 min 45 s
Designer
Arrow Dynamics

Demon at Six Flags Great America is a classic steel roller coaster renowned for its exhilarating ride experience. Standing about 104 feet tall and reaching speeds of up to 45 mph, Demon has four inversions: two vertical loops followed by a double corkscrew. It opened with the park in 1976 as Turn of the Century and became Demon in 1980, when the two loops were added. The ride's signature feature is its two vertical loops that create an intense, head-spinning sensation. With its dark, menacing theme and impressive design, Demon delivers a nostalgic and adrenaline-fueled experience, making it a favorite among coaster enthusiasts and a standout attraction at the park,

Demon at Six Flags Great America is exciting for several reasons:

  1. Inversions: The ride features four inversions, including two vertical loops, which provide thrilling upside-down moments and a sense of weightlessness.
  2. Speed and Height: With speeds reaching up to 45 mph and a height of about 104 feet, the ride delivers a high-energy experience that intensifies the sensation of speed and airtime.
  3. Twists and Turns: The coaster's layout includes a series of tight turns and sudden drops, adding to the dynamic and unpredictable nature of the ride. These elements keep riders on their toes and heighten the thrill.
  4. Smooth Ride Experience: Despite its intense elements, Demon is known for its smooth ride, allowing for a more enjoyable and less jarring experience compared to some older coasters.
  5. Theming and Atmosphere: The ride's dark, menacing theme and dramatic soundtrack enhance the overall experience, immersing riders in a thrilling, immersive environment.

These features combine to create a high-adrenaline experience that captivates riders and keeps them coming back for more.

Sources

  • sixflags.com/greatamerica/attractions/demon (Park page: Demon in County Fair, here since the park opened in 1976, manufacturer Arrow; 2,130 ft long, 10-story climb, two vertical loops, two corkscrews, 45 mph; 48-inch minimum height.)
  • rcdb.com/3.htm (RCDB: Demon, operating since May 29, 1976; make Arrow Dynamics, custom looping coaster; length 2,130 ft, height 103.7 ft, drop 90 ft, 50 mph, 4 inversions (70-ft loop, 55-ft loop, double corkscrew), duration 1:45; named Turn of the Century 1976-1979, loops added and renamed Demon for 1980.)
  • en.wikipedia.org/wiki/Six_Flags_Great_America (Turn of the Century was one of the park's three opening coasters in 1976; it was rethemed and renamed Demon in 1980 with two vertical loops added.)

Numbers are from the ride's manufacturer and park where published; "n/a" means we have not confirmed that number yet. Spotted an error? Tell us.