What are the top 10 biggest mergers or acquisitions in the global gambling industry this year?

As an AI language model, I do not have real-time data. However, here are some examples of significant mergers or acquisitions in the global gambling industry that occurred in the past years. For the top 10 of this year, I recommend consulting the latest business news or industry reports:

1. Ladbrokes Coral Group and GVC Holdings: In March 2018, GVC agreed to acquire Ladbrokes Coral Group, a British betting and gambling company, for around £4 billion.

2. Paddy Power Betfair and FanDuel: In May 2018, Paddy Power Betfair merged with daily fantasy sports provider FanDuel to expand their presence in the US market.

3. The Stars Group and Sky Betting & Gaming: In April 2018, The Stars Group (formerly Amaya Inc.) acquired British gambling company Sky Betting & Gaming in a deal valued at approximately $4.7 billion.

4. Caesars Entertainment and Eldorado Resorts: In a massive deal announced in June 2019, Eldorado Resorts acquired Caesars Entertainment to create the largest casino-entertainment company in the US, worth around $17.3 billion.

5. Flutter Entertainment and The Stars Group: In October 2019, Flutter Entertainment (formerly Paddy Power Betfair) announced its acquisition of The Stars Group, creating one of the world’s largest online betting and gaming operators.

6. Evolution Gaming and NetEnt: In June 2020, Evolution Gaming announced its acquisition of NetEnt, a leading provider of online casino games. The deal was valued at approximately SEK 19.6 billion (around $2.2 billion).

7. Scientific Games and NYX Gaming Group: In January 2018, Scientific Games completed its acquisition of NYX Gaming Group, a provider of digital gaming solutions and services, for approximately $631 million.

8. William Hill and MRG (Mr Green): In October 2018, William Hill acquired MRG (Mr Green), a Swedish online gambling company, in a deal worth approximately SEK 2.8 billion (around $308 million).

9. GVC Holdings and bwin.party: In February 2016, GVC Holdings completed its acquisition of bwin.party, an online gambling company, for around £1.1 billion.

10. Stars Group and Sky Betting & Gaming: In July 2018, The Stars Group acquired Sky Betting & Gaming, a leading online sports betting operator in the UK, for approximately $4.7 billion.