"We are just totally overwhelmed by the fact that we achieved it this quickly," executive producer Dean Rodgers told CNBC. "When we put the campaign up we were hugely nervous and for the response to be this good, we are just a bit lost for words."
Rodgers said his team is stressed but confident about the next step: building the set for The Crystal Maze. "We have a great team and all the funding has been placed and things can be a lot smoother now," he said.
Actor Richard O'Brien, the show's original presenter, will be involved in the revival, but the producers remained tight-lipped about what his role will be.
"Richard is great. He's wonderful and hilarious and eccentric and he brings so much of his own ideas to anything that you're doing," said Rodgers.
Read MoreThe Crystal Maze is to be resurrected as an immersive theatre experience
Visitors to the London attraction will be able to recreate the experience of the original British TV show, where contestants raced to complete puzzles in four themed zones: Aztec, Future, Medieval and Industrial.
Tickets will cost £50 ($79.26) plus a booking fee, but campaign supporters will receive free tickets as a reward for their donation. The Indiegogo campaign will continue to run until July 19.