Fourteen hours after Paul and Alyssa Boswell launched a Kickstarter campaign for a game designed to teach about computers, they met their $48,000 goal.
Then, things went into an infinite loop.
On Thursday, nine days after the campaign started, the Shoreview couple had raised $194,000 from more than 2,100 backers.
The game is called Turing Tumble, named after the father of the modern computer, Alan Turing, and it shows kids and adults how a computer works.
Requiring no batteries or chargers, the game is merely a board, marbles and plastic parts such as ramps, crossovers and bits that form the mechanics of a computer. Marbles roll one at a time from the top of the board through pins and switching pieces. When a marble hits a flipper at the bottom, another marble is released to create a cycle.
The Boswells, who are in their mid-30s, want kids to be able to do more than turn on a computer or start an app without thinking about it.
"We teach the building blocks of reading to help kids be better readers. This game gives them the same foundation with computers," Alyssa Boswell said in an interview Thursday.
Players can move the parts in logical sequences to have the game add, subtract, multiply and divide. A book that accompanies the game presents 51 puzzles to solve and construct on the board. "I designed it to let kids see and feel how computers work," said Paul Boswell in the Kickstarter video.