Best Online Casino in Europe 2025

Best European Online Casinos by Category

Atheme’s Expert Guide to the Top European Online Casinos

Explore our top picks for reputable online casinos in Europe, carefully vetted through our extensive testing process. Focusing on players from Germany, Austria, and Switzerland, this guide highlights each casino's outstanding features, game variety, and security standards to help you find the best place for your online gaming needs.

WinShark Casino - Best EU casino site 2025

WinShark Casino, launched in 2024, is a trusted online casino, owned by GALA MEDIA Limited. With a Curacao license, this platform offers a secure and multilingual experience in over 10 languages. The casino welcomes new players with a generous bonus spread across their first three deposits.

With a diverse library of games powered by 135+ leading developers, WinShark ensures a top-notch gaming experience, from slot games to live casino games. Plus, among all online casinos in Europe, this one features a solid mobile casino app.

Slotsgem Casino

Slotsgem Casino is one of the best european online casinos with over 4,000 games, covering video slots, jackpots, table games, and a busy live casino lobby. New players from many countries can claim a four-part welcome package worth up to €1,450 plus 225 free spins on selected slots. The site operates under a Curacao licence and supports both fiat and cryptocurrencies, giving you flexible ways to deposit and withdraw. E-wallet and crypto withdrawals are usually processed within 12–24 hours, while card and bank transfers take longer.

Diva Spin Casino

DivaSpin Casino, launched in 2024, is among the new online casinos in Germany. This EU Casino offers over 10,000 games, ranging from classic slots and jackpots to crash games, table games and a large live casino section. New players can unlock a tiered welcome package worth up to €3,000 plus 350 free spins and 1 Bonus Crab round, spread across the first four deposits. The platform operates under a Curacao licence and focuses strongly on promotions, including reload bonuses, cashback and in-house features like Bonus Crab and a bonus shop. Deposits from €20 are processed instantly and you’ll find both traditional methods and several cryptocurrencies available.

How we choose the best online casino Europe: key features to consider

When selecting the best online casino sites, we focus on key features that ensure a secure, enjoyable, and fair gaming experience. These factors help us narrow down the options and provide you with reliable choices.

• Licensing & Security: A valid license from trusted authorities, like the MGA (Malta Gaming Authority), Curacao, UK Gambling Commission, or GGL for Germany, is crucial. It means the casino is legally regulated and follows strict security protocols. We also look for SSL encryption, which protects your data, and check for responsible gambling policies and fair gaming certifications to ensure a safe environment.
• Game Selection & Leading Software Providers: The top EU online casinos offer a wide range of games, from online slot games and table games to live dealer games and progressive jackpots. We check if the casino works with top software providers like NetEnt, Pragmatic Play, Microgaming, Play’n GO, and Evolution Gaming to ensure high-quality gameplay in the most popular casino games like online poker and others.
• Bonus Offers & Wagering Requirements: Attractive casino bonuses are a huge part of online gaming. We evaluate welcome bonuses, no-deposit bonuses, free spins, deposit bonuses, and loyalty programs, but we focus on fair terms. Low wagering requirements (around 30x or less) and clear bonus policies are key indicators of player-friendly online casinos in Europe that don't trap you in difficult conditions.
• Real Money Payments & Fast Payouts: When playing at online casinos in Europe, smooth real money transactions are essential. We focus on online gambling sites that support trusted payment methods like Sofort, Klarna, Trustly, and even crypto options. Deposits should be processed instantly, and withdrawals should be quick and hassle-free. The best real money online casinos also offer low fees, support EUR currency, and provide clear information about payout limits and processing times. Whether you're cashing out after a big win or simply topping up your account, reliable payment systems make all the difference.
• Mobile Compatibility: Since many players enjoy gaming on their phones, we look at how well a casino works on iOS and Android devices. Whether through a responsive mobile site or a dedicated mobile casino app, it’s important that the platform provides smooth navigation. Plus, Europe online casinos focus on providing easy access to favorite casino games.
• Customer Support & User Experience: Reliable customer support is a must, and we check if the casino offers 24/7 assistance through live chat, email, or phone, preferably in German. We also look at how user-friendly casino sites are, including easy navigation, clear terms and conditions, and a responsive design for a pleasant browsing experience.
• Responsible Gambling & Fair Play: Top licensed casinos prioritize responsible gambling tools like deposit limits, self-exclusion options, and reality checks. We also make sure the games are certified for fairness with RNG (Random Number Generator) and transparent RTP (Return to Player) rates, ensuring players get a fair shot at winning.

The Legal Landscape of German online casinos

Germany’s online gambling landscape has seen significant changes since the Fourth Interstate Treaty on Gambling was enacted in 2021. This treaty introduced a strict licensing regime for online casinos, poker, and sports betting, marking a major shift from the country’s previously restrictive approach to online gambling. Today, German players can legally access a variety of trusted EU casino sites, including sports betting, poker tournaments, online casino games, and state-run lotteries, both online and offline.

To offer gambling services in Germany, operators must secure a license from the Gemeinsame Glücksspielbehörde der Länder (GGL), the national gambling regulator. This process is open to both local and international operators, but the requirements are tough. Real money online casinos must meet strict standards for player protection, and transparency in financial transactions, and adhere to online gambling regulations on advertising.

However, while online gambling is now legal, the regulatory environment is still cautious, especially when it comes to popular online casino games. These games are often regulated at the state level, and states may choose to operate them under a monopoly or issue a limited number of licenses. Licenses for german online casinos are capped and can’t exceed the number held by land-based casinos, which limits the availability of licensed operators in the country.

As for taxation, most gambling winnings in Germany are not taxed. However, players should be aware that winnings from sports betting may be subject to tax in certain cases. If you're not considering German casinos, keep in mind that while international options are available.

Ensuring that a provider holds a valid German gambling licence is crucial for a safe and legal gaming experience. Providers need a German gambling licence for a legal offer. A licence from another EU country, for example Malta or Cyprus, is not sufficient . With the help of the white list of the Saxony-Anhalt state administration office, you can check whether the provider is in possession of a German gambling licence.

Information about Online Gambling in other countries

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  Online Glücksspiel Schweiz
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  Online Gambling Switzerland
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  Casino en ligne international
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  Online Glücksspiele in Deutschland
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  Online Glücksspiel Österreich

Snapshot of the European Online Gambling Landscape

The European online gambling sector has expanded rapidly in recent years. EGBA estimates that the total value of the European gambling market reached €123.4 billion in 2024, underlining the strong momentum behind digital betting and gaming platforms. This rise is driven by the steady rollout of regulated online markets and a consistently high demand for internet-based gambling services across multiple European countries.

Looking ahead, Statista forecasts the market to grow to €150.19 billion in 2025, highlighting just how fast the industry is scaling. Several factors are fueling this growth: a wide variety of game types, user-friendly mobile platforms, and fast, secure casino payment methods that make it easy for players to deposit and withdraw funds. Below are some of the main structural features that define the European online gambling market:

• No single EU-wide gambling law: Gambling is not harmonised at the EU level. Each country sets its own rules, meaning licensing conditions, tax structures, and product scopes can differ significantly from one jurisdiction to another. Domestic regulators – for example, Spelinspektionen in Sweden and Spillemyndigheden in Denmark – are responsible for issuing licences, supervising operators, and ensuring compliance with local gambling laws.

• EU-Level Rules Still Matter: Even though regulation is handled at the national level, all markets must still comply with broader EU and EEA frameworks, such as: GDPR for data protection and privacy; AMLD requirements related to anti–money laundering; CJEU case law, which can shape how gambling rules are interpreted and enforced. These overarching rules create a common compliance baseline that operators must consider, especially when active in multiple jurisdictions.

• Market Access for Private Operators: In the majority of European countries, private operators can request licences to offer online casino and betting services. Only a limited number of jurisdictions still rely on state-owned monopolies or highly restricted models.

• Strong Focus on Player Protection: KYC and responsible gambling are mandatory. Online casinos operating within the EU/EEA must: Conduct Know Your Customer (KYC) checks to verify player identity and prevent fraud; Provide responsible gambling tools, such as deposit limits, time-out options, and self-exclusion features, to help protect vulnerable players.

• Cross-Border Operations and Compliance: Authorities such as the Malta Gaming Authority (MGA) and the Isle of Man Gambling Supervision Commission (GSC) play a major role in facilitating cross-border operations. Their licensing frameworks are widely recognised and often used by operators aiming to comply with several jurisdictions simultaneously.

Where can I play in a casino in Switzerland?

With the new law, you can play anywhere in Switzerland! The best European casino sites can be found on our list. You can enjoy online casino games like poker games, blackjack, and slots, and even try some scratch cards.

And even better: With the new Swiss online gambling law, it is 100% legal to gamble online! However, the law will eventually prohibit access to online casino sites that are not licensed in Switzerland. But for now, you can still access them legally.

European Online Casino Bonuses

The biggest reason to choose online gambling over land-based casinos is the bonus offers. While a land-based casino or arcade might occasionally offer free entry or a complimentary drink, the best online casinos provide starting deposit bonuses. Plus, there's a variety of casino bonuses that give you more value from the get-go.

The welcome bonus

When it comes to the best EU casinos, you often get a generous welcome bonus that at least doubles your deposit. For example, welcome offers are actually deposit bonuses that match your deposit by 100%.

If you head to a casino with €200 and sit at the blackjack table, spin the roulette wheel, or join a poker tournament, your budget could be gone in less than an hour, leaving you disappointed. But when you gamble online, you often get a 100% deposit bonus. For example, if you deposit €200, you'll have €400 to play with.

Our guide to the Best Online Casinos in Europe 2025 – Win Big details top EU casino sites where you'll find attractive bonus offers, including diverse deposit bonuses.

While attractive, bonus offers should be carefully evaluated to understand their terms and conditions fully.

Safe and Fun Gaming in Online Casino Germany

Most safe online casino platforms provide players with personal accounts, allowing for convenient access and control, while also prioritizing protection against unauthorized access.

They want to be sure that only they can access and play on their account. But what if, for example, the player’s children know their login details? This is where biometric identity verification, such as Face ID or a fingerprint scan, comes into play. It offers a perfect balance of usability and top-notch security. Without this level of convenience and protection, customers are likely to look elsewhere.

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