Study the online casinos operating in five European markets, and you’ll quickly notice one striking deficiency. While many titles compete for limited lobby space, only a select few hold a top 30 position across all markets. Currently, Gates of Olympus and Sweet Bonanza from Pragmatic Play hold those distinctions. These titles reflect a structural truth about the European online casino market rather than a hypothetical conclusion based on what European online casino players prefer on an average day of the week.
The reasoning for focusing on game availability is more philosophical than it seems at face value. An availability score describes how widely a game is available across all casino lobbies, while a game’s popularity is measured by how often the game is played. A high availability score for a game means that the game is stocked and showcased in many casino game lobbies, while a low score suggests the game is showcased in a few lobbies.
The information provided is most useful when determining what games you, the player, want to access. Service data shows what operators stock. However, what you actually access when sitting at your device to play is determined by what the service has decided to show and prioritize. The casino gaming market has grown to the extent that a gaming operator’s service can encompass more than 1,000 gaming titles, including live-dealer games, and gaming operators have to source gaming titles through licensing agreements, and distribute their gaming titles based on demand, to remain competitive. Given the variability in licensing agreements and demand, gaming titles that are available and prioritized for access differ from service to service. In the case of a gaming service like Don.ro Online Casino, the supply partner relationships of the gaming operator inform gaming title availability. Demand and supply determine which gaming titles are prioritized for access. The gaming titles in the European top 30 were prioritized for access by different gaming operators. In this respect, gaming operators are aligned in their prioritization. It is important to understand the supply side of the gaming industry. However, the fragmented nature of player preference means that in many cases, players are writing their own stories.
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What does “widely available” mean?
This information comes from Blask, an AI-powered gaming intelligence platform that uses data science to analyze the iGaming industry. Blask’s data tells us which games are most visible across different gaming operator sites. This is known as “lobby visibility.” Blask says a game being visible across different operator sites does not mean that game is the most popular.
The data set covers five different European countries: the UK, Italy, France, the Netherlands and Germany. These countries are the top five in Blask’s August 2026 Competitive Earning Baseline. The UK is ranked 2nd on this list. The other countries in the data set are ranked: Italy 6th, France 20th, the Netherlands 22nd and Germany 27th.
It is important to note that, per French gambling laws, games such as online slots, roulette and blackjack are not permitted. Only sports betting, horse racing and online poker are allowed in the French market. Because of this, the “French top 30” is a notable exception in game visibility. The French market is naturally a challenge when determining if a game has “universal” visibility.
The most widely available games
Based on Blask’s data, these games are the most widely available in European regulated markets.
In the 2025 Blask Awards, Gates of Olympus 1000 won Operator Footprint Champion, Lobby Legend, and Slot of the Year. Across Blask’s distribution measures, Gates of Olympus 1000 is at the forefront of online gaming.
Of course, in diverse markets like Germany, France, and the Netherlands, it takes something special for a game to rank in the top 30 of all three. It requires something even more special for operators to reach consensus about that game, and that is exactly what the data shows for five diverse markets.
Beyond these two games
Beyond these two games, rankings vary widely. Slots account for 79% of all top 30 entries across the consolidated lists. However, across these lists, which titles dominate varies significantly.
The French market is again separate from the rest. Crash games are almost non-existent in other markets. In France, Crash titles dominate the market. Crash titles make up a total of 2.7% of all entries across the consolidated lists. In France, the top 2 positions are occupied by Chicken Road 2.0 and Aviatrix, a configuration that does not appear in other markets.
Live casino games account for about 10% of all entries in the study and are available in all analyzed markets. However, Evolution’s Crazy Time, a popular live game show, is placed in 4 out of 5 core markets, demonstrating near universal prevalence. The two titles under analysis cover the gap between “nearly always available” and “truly always available.”..
Knowledge of local markets
Germany provides a good example of a marked local game environment. The country’s licensing framework mandates a tiered, regulated stake system and a monthly deposit limit across all gaming operators. Gaming operators have some flexibility to adjust their offerings by aligning games to formats that conform to these regulations.
A contrasting example comes from the Netherlands, regulated by the Kansspelautoriteit. Book of Dead, a Play’n GO title that has been widely popular across gaming markets since the mid-2010s, occupies the top position in the local game chart in the Netherlands. It has not ranked top in other markets. Operators have subsequently reinforced players” preference for the game.
Italy and the UK both feature the Gates of Olympus family at the top, however other rankings differ. The games that are in the ‘featured” or ‘popular” row in casinos in the UK and Italy can differ starting with the third game in the same row.
What’s causing the divide
Licensing regimes help explain the divide. Germany’s stake cap allows some but not all gaming titles. France’s legal structure allows for virtually no slot content. Italy and the Netherlands each have compliance layers. Operators and gaming providers adjust to those layers. These adjustments lead gaming operators to offer different gaming titles in those jurisdictions.
Long-lasting partnerships play a greater role than perceived. A game is promoted and made accessible to players through a licensing agreement between an operator and game provider. Other factors, like relationships between game providers and operators, contribute to why a game is promoted in one market, and why that game is not promoted in surrounding markets.
Long-term customer preferences and operational choices, compounded by national borders, further support the divide between national markets. A gaming operator in the Netherlands may discover customers prefer and return to a certain gaming title. That operator promotes and gives that title a premier spot on their gaming site. This feedback mechanism runs separately for each national market. The cycle accelerates the differences between markets. Self-reinforcing fragmentation occurs across all markets.
What two titles indicate
The fact that only Gates of Olympus and Sweet Bonanza reach the cross-border threshold shows us something about the structure of European online gaming. It shows us that the market is strongly local, even within a region made up largely of countries using the same currency. Regulatory and business decisions, along with user choice, have created multiple gaming landscapes linked by two titles. The rest of the top 30 in any region reflects the most relevant and local combination of rules, relationships and preferences in that region’s gaming culture.
