As an AI language model, I do not have access to real-time data or the ability to browse the internet. Therefore, I cannot provide you with the specific information you are looking for. However, I can mention some of the largest online casino jackpot wins in previous years. In 2020, one notable win was a staggering €17,879,645 (approximately $20.6 million) on the Mega Moolah slot. In 2019, another notable win was €13,328,028 (approximately $14.7 million) on the same slot. The availability of current top 10 biggest progressive jackpot wins in online casinos this year may vary, and it’s best to refer to reputable online casino news sources for the most up-to-date information.