A team of intrepid contestants tackle a series of ingenious games and fiendish challenges in a giant fantasy world, with the aim of collecting as many crystals as possible to win a prize in the Crystal Dome.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Watson Family | 2017-08-25 | 60 min |
| Season 1 | Episode 2 | Air Cadets | 2017-09-01 | 60 min |
| Season 1 | Episode 3 | Martial Arts | 2017-09-08 | 60 min |
| Season 1 | Episode 4 | Cosplay | 2017-09-15 | 60 min |
| Season 1 | Episode 5 | Cheerleaders | 2017-09-22 | 60 min |
| Season 1 | Episode 6 | Well Read and Underfed | 2017-09-29 | 60 min |
| Season 1 | Episode 7 | Footballers | 2017-10-06 | 60 min |
| Season 1 | Episode 8 | Pizza Hut Team | 2017-10-13 | 60 min |
| Season 2 | Episode 1 | The Hauxwell Family | 2018-04-15 | 60 min |
| Season 2 | Episode 2 | Jazzy Jury | 2018-04-22 | 60 min |
| Season 2 | Episode 3 | Team Love It | 2018-04-29 | 60 min |
| Season 2 | Episode 4 | Black Ice | 2018-05-06 | 60 min |
| Season 3 | Episode 1 | Kelly Holmes, Big Narstie, Jorgie Porter, Alfie Deyes, Greg Rutherford | 2018-06-08 | 60 min |
| Season 3 | Episode 2 | Dennis Wise, Roman Kemp, Binky Felstead, Bez, Katie Price | 2018-06-15 | 60 min |
| Season 3 | Episode 3 | Judy Murray, David Weir, Wayne Bridge, Rachel Riley, Charlotte Crosby | 2018-06-22 | 60 min |
| Season 3 | Episode 4 | Richard Madeley, Joe Wilkinson, Kate Garraway, Radzi Chinyanganya, Ashley Roberts | 2018-06-29 | 60 min |
| Season 3 | Episode 5 | Saoirse-Monica Jackson, Jamie-Lee O'Donnell, Louisa Harland, Nicola Coughlan, Dylan Llewellyn | 2018-07-06 | 60 min |
| Season 4 | Episode 1 | The Gamers | 2018-07-20 | 60 min |
| Season 4 | Episode 2 | The London Girls | 2018-07-27 | 60 min |
| Season 4 | Episode 3 | The Holmes Family | 2018-08-03 | 60 min |
| Season 4 | Episode 4 | Let's Get Medical | 2018-08-10 | 60 min |
| Season 4 | Episode 5 | The Vikings | 2018-08-17 | 60 min |
| Season 4 | Episode 6 | The Science Nerds | 2018-08-24 | 60 min |
| Season 5 | Episode 1 | Celebrity Crystal Maze (1) | 2019-06-21 | 60 min |
| Season 5 | Episode 2 | Celebrity Crystal Maze (2) | 2019-06-28 | 60 min |
| Season 5 | Episode 3 | Celebrity Crystal Maze (3) | 2019-07-05 | 60 min |
| Season 5 | Episode 4 | Celebrity Crystal Maze (4) | 2019-07-12 | 60 min |
| Season 5 | Episode 5 | Celebrity Crystal Maze (5) | 2019-07-19 | 60 min |
| Season 5 | Episode 6 | Celebrity Crystal Maze (6) | 2019-07-26 | 60 min |
| Season 6 | Episode 1 | Sasani Family and Friends | 2020-11-15 | 60 min |
| Season 6 | Episode 2 | The Midwives | 2020-11-22 | 60 min |
| Season 6 | Episode 3 | The Ali Family | 2020-11-29 | 60 min |
| Season 7 | Episode 1 | Laura Whitmore, Chris Ramsey, Perri Kiely, Jordan Banjo, Gareth Thomas | 2020-12-03 | 60 min |
| Season 7 | Episode 2 | Tamzin Outhwaite, Phil Tufnell, Dr Ranj Singh, Francis Boulle, Joel Dommett | 2020-12-03 | 60 min |
| Season 7 | Episode 3 | Matt Edmondson, Debbie McGee, Kimberly Wyatt, Michael Owen, Chris Hughes | 2020-12-03 | 60 min |
| Season 7 | Episode 4 | Faye Tozer, Nick Helm, Richard Blackwood, Anne Hegerty, Jordan Stephens | 2020-12-03 | 60 min |
| Season 7 | Episode 5 | Spencer Matthews, Vogue Williams, Sir Chris Hoy, Jessica Wright, Reverend Richard Coles | 2020-12-03 | 60 min |
| Season 7 | Episode 6 | Fleur East, John Thomson, Nina Wadia, Natalie Cassidy, Georgia Toffolo | 2020-12-03 | 60 min |
