1. Jon Heywood – In 2015, Jon Heywood won a staggering £13.2 million ($17.2 million) playing the Mega Moolah slot game at Betway Casino.
2. Klaus E. – This Finnish player won €17.8 million ($24 million) on the Mega Fortune progressive jackpot slot game at Paf Casino in 2013.
3. Ashley Revell – In 2004, Ashley Revell famously bet his life savings of $135,300 on a single spin of the roulette wheel at the Plaza Hotel & Casino in Las Vegas. Miraculously, he won and doubled his money, making him one of the biggest winners in gambling history.
4. Peter – A Norwegian player known only as Peter won €11.7 million ($15.2 million) in 2011 playing the Arabian Nights slot game at Betsson Casino.
5. John Orchard – In 2012, John Orchard won £5.8 million ($7.5 million) playing the Dark Knight slot game at Butlers Bingo.
6. Marcus Goodwin – Marcus Goodwin won $11.6 million in 2016 playing the Mega Moolah slot game at Yako Casino.
7. Georgios M. – This Greek player won €6.3 million ($8.6 million) in 2009 playing the Mega Moolah slot game at River Belle Casino.
8. Rawiri Pou – Rawiri Pou, a New Zealand player, won NZ$10.1 million ($7.2 million) playing the Mega Moolah slot game at Casinoland in 2016.
9. D.P. – In 2016, a Canadian player known only as D.P. won CA$7.5 million ($5.9 million) playing the Mega Moolah slot game at Zodiac Casino.
10. Neil – In 2017, a UK player known as Neil won £6.37 million ($8.7 million) playing the Hall of Gods slot game at Casumo Casino.