Top 10 Countries Where Online Casinos Are Booming in 2025
Online casinos are booming. The global iGaming market is expected to grow from $117.5 billion in 2025 to $186.58 billion by 2029, with an annual growth rate of 10.6%, according to demandsage.com. Europe is still in the lead, with almost half the market share. And countries like Sweden and Finland are already seeing online penetration rates above 68% (egba.eu). Mobile technology is a big deal: around 80% of online gamblers now play on smartphones.
Legal reforms in the Americas, digital adoption in Africa and Asia, and evolving frameworks in Europe are driving this expansion. These changes mean more opportunities for affiliates and operators. One of the smartest ways to capture players in these fast-growing regions is to provide smooth, fast, and secure deposit options. Choosing from the best casino payment methods ensures players can fund their accounts easily and trust the platform — a key factor in retention and conversions.
With that in mind, here’s a rundown of the top 10 countries where online casinos are booming in 2025, based on revenue growth, regulation, and digital adoption.
10. Spain – Growth Rebounds After Bonus Restrictions Lifted
Spain’s online gambling market grew to €1.45 billion in 2024, up 17.6% year-on-year (igamingbusiness.com). Online casinos added €730.7 million, and sports betting brought in €608.9 million. There was a 21.7% surge in active players, and it looks like the welcome bonuses that were brought back in April 2024 are the reason why.
The DGOJ oversees the market and enforces strict advertising rules. Even though the number of people using the internet is still pretty low at 14.2%, the fact that bonuses have been reinstated, there are new ways to pay, and a lot of people are using their smartphones suggests that the number of internet users could go up a lot.
9. United Kingdom – A Mature but Expanding Market
The UK generated €19.8 billion in gambling revenue in 2023, with €11.1 billion online, giving it a 56.3% online share. Online casinos and slots are still doing better than the ones in real casinos.
The Gambling Commission has strict rules, including affordability checks, AML rules, and proposals for slot stake limits. Even though it’s mature, innovation in live dealer formats, jackpots, and cross-platform wallets is helping the market expand. But growth is slowing down because it’s already saturated and the rules for RGs are getting stricter.
8. Italy – Europe’s Largest Gambling Market, Still Moving Online
Italy reported €21 billion in total GGR in 2023, but online accounted for only 21.7%. With more and more people using digital tools, there’s a lot of potential here.
The 2023 “Decreto Giochi” tightened licensing and responsible-gambling rules, but that didn’t stop the growth. Italy’s population size, betting culture, and widespread smartphone use are moving more players online, despite high taxes and ad restrictions.
7. Sweden – Digital Market Leader
Sweden’s got the highest online gambling share in Europe, with 68.3% of revenue generated online. In the first quarter of 2025, the biggest segment was commercial online gambling, which reached SEK 4.28 billion.
Since they made some changes in 2019, Sweden has become a trusted regulated market, supported by the Spelpaus self-exclusion system. Mobile play is the name of the game, and the competition between licensed operators is driving strong consumer engagement.
6. Philippines – E-Games Surge
PAGCOR reported PHP 214.75 billion ($3.72 billion) in GGR for the first half of 2025, with PHP 114.83 billion from e-games, which is an 82.7% year-on-year increase.
Even with all the regulatory uncertainty, like the debates over Senate Bill 142 (the ban) and House Bill 1351 (the regulation), mobile payments and integrated resorts are driving strong online growth. PAGCOR thinks it’ll make between 450 and 480 billion PHP ($7.8 to 8.3 billion USD) in 2025 according to reuters.com.
5. Nigeria – Africa’s Mobile-First Market
Nigeria’s iGaming sector is growing at a rate of about 16% each year. It’s expected to reach $500 million by 2025 (focusgn.com). Almost 90% of bets are placed on smartphones, and fintech companies like Flutterwave and Paystack make transactions a breeze.
While the regulations are still all over the place, the country’s young population and growing middle class will keep demand for digital betting and casino products pretty steady.
4. India – A Market Waiting for Regulation
India’s online gambling market was valued at $2.9 billion in 2024 and is projected to reach $5.7 billion by 2033 (sccgmanagement.com). Sports betting is expected to grow even faster, thanks to cricket’s cultural popularity.
Right now, state-level regulation allows for skill-based games like poker and rummy, but casino-style games are mostly still off-limits. With 1.4 billion people and a booming UPI payments system, India has massive potential for the future, once they set national rules.
3. Brazil – Latin America’s Largest Regulated Market
Brazil’s regulated iGaming framework, introduced in 2023/25, has led to significant growth. In the first half of 2025, operators made R$17.4 billion (~€2.76B) in revenue and paid R$3.8 billion in taxes (gamingintelligence.com).
With over 200 million residents, high smartphone use, and a passion for football, Brazil represents enormous scale. It’s true that compliance costs are high, but the potential revenue makes up for it.
2. Canada (Ontario) – North America’s Model Market
Ontario’s iGaming framework is doing really well. In 2024–25, it recorded CA$82.7 billion in wagers and CA$3.2 billion in GGR, up over 30% year-on-year (igamingontario.ca).
Ontario’s open-market model allows private operators under AGCO oversight. With 84 regulated sites and over 83% channelization, the province has become a model for North America, getting the ball rolling on regulatory discussions in Alberta and BC.
1. United States – State-by-State Expansion
The U.S. iGaming market hit $8.41 billion in 2024, up 28.7% year-on-year across seven states. Pennsylvania, Michigan, and New Jersey were the main ones, and Rhode Island joined in 2024.
Growth is driven by sports betting cross-selling, a variety of payment options, and increasing consumer acceptance. Having a bunch of different state regulations can make things more complicated, but the U.S. is still the biggest driver of online casino growth worldwide.