What are the top 10 largest jackpots won in online casinos this year?

As an AI language model, I don’t have access to real-time data. However, as of my last update in July 2021, here are some of the largest jackpots won in online casinos:

1. Mega Moolah – €19.4 million, won on April 27, 2021.
2. Mega Fortune – €17.8 million, won on May 30, 2021.
3. Hall of Gods – €14.2 million, won on April 21, 2021.
4. Mega Fortune – €10.7 million, won on January 21, 2021.
5. Mega Moolah – €9.2 million, won on January 14, 2021.
6. Arabian Nights – €8.2 million, won on February 6, 2021.
7. Hall of Gods – €7.8 million, won on January 27, 2021.
8. Mega Moolah – €6.5 million, won on June 12, 2021.
9. Mega Fortune – €5.6 million, won on March 30, 2021.
10. Joker Millions – €5.2 million, won on February 22, 2021.

Please note that these figures may have changed, and there could be larger jackpots won in online casinos since my last update.