Over the weekend on January 20, 2013, a slot player won the largest jackpot ever won at an online casino playing the game Mega Fortune on a 25 cent bet that paid them a life changing €17,861,800 (around $24 million). The Mega Fortune jackpot slot is operated by the software company Net Entertainment. The identity of the player is still not revealed but the win took place on online casino gaming site PAF based in Scandinavia, part of the progressive jackpot network on Net Entertainment partner casinos.
The casino networks maintain a reserve of funds which is contributed into by the different casinos that offer the progressive jackpot games. These funds make up the jackpot and are used to pay the jackpot winners.
The previously largest jackpot was in the amount of €11,736,375 won in September 2011 and independently verified by Guinness World Records in December 2011.
Here is a recreation of the Mega Fortune jackpot win.