Series 8

The eighth series of The Crystal Maze Online Adventure was produced from August 11 through August 21, 2020. Hosted by Robert and Joshua, the series consisted of twelve teams, the first time since Series 4.

Bookings for the series took place through The Crystal Maze Online Adventure Facebook group. On August 21, 2020, RegJems won the series over Simmeggthaks and The Jazzy Jewels respectively.

Development
Booking for the series was done alongside Series 7 with all teams securing their place in under five hours. The decision to reduce the number to twelve teams instead of continuing the practice of thirteen teams since Series 5 was to prepare for the 100th overall game which would be played by Game Night International. The aesthetics changed for the first time since Series 5 to pay homage to the original television series. Robert returned after departing part-way through the previous series, starting with the third episode.

The Double Crystal was not brought back for this series and instead a new twist - the Double Power - will be in play. During each episode the team will randomly have one of their games be given the chance to double their overall score in the Crystal Dome only if the game is won, but will not be revealed until they've completed the Crystal Dome where they'll decide whether or not to exercise the power. This was introduced to increase the number of wins in the Crystal Dome after one team secured victory in Series 7.