Top Grossing Casino Games Worldwide

Casino Games

Casino gaming remains a popular global entertainment, drawing over 200 million participants annually. Despite restrictions, such as online casinos being prohibited in several states, legal alternatives like land-based casinos, lotteries, and social casinos thrive. Real-money casino games continue to captivate players globally. Here, we’ll delve into five top-grossing casino games in 2023 for operators and punters.


Slots stand out as the most popular and lucrative casino game on Betway Zambia, with the global market valued at $9.5 billion in 2022 and projected to reach $13.4 billion in 2030. This growth is attributed to the increasing number of casinos worldwide and the surge in online gambling popularity.

Slots typically offer a return-to-player ratio ranging from 94.5% to 96.5%, with some online variants boasting even higher RTPs. Though featuring lower payout rates, Progressive jackpot slots provide players with the chance to win life-changing amounts if they hit the jackpot.


Poker remains a global favorite, with the online poker market reaching $76.7 billion in 2022 and an anticipated growth to over $170.12 billion by 2030, showcasing a remarkable 12.5% compound annual growth rate. Known for its blend of skills, strategy, and psychology, poker attracts professional gamblers and hosts prestigious tournaments like PokerStars Championship and the World Series of Poker.

Video poker

Video poker, combining classic slot machine nostalgia with poker excitement, has gained popularity in 2023. It offers one of the highest payout rates, featuring various options from leading developers like IGT. However, players must employ the right betting strategy to maximize the game’s RTP. Online casinos provide a variety of video poker variants, each offering a unique yet generally minor difference in gameplay.


Blackjack, a timeless casino classic, stands out as the most popular casino banking game globally. Found in almost every casino worldwide, its widespread appeal is attributed to a low house edge and straightforward gameplay.

Despite various blackjack variations, the game generally boasts a high Return-to-Player (RTP) of over 99%, surpassing many other casino games. However, the RTP can be influenced by factors such as the number of card decks used in a game. As a result, blackjack often contributes 10%-20% towards meeting wagering requirements for welcome bonuses.

Opting for a single-deck blackjack game from top providers can yield an impressive average RTP of 99.5%. Some variants, such as those offered by Betway, can even reach up to 99.82% RTP. However, maximizing the game’s RTP requires employing the right betting strategy.


Roulette, a sophisticated online and offline game, captivates gamblers as they watch the ball glide across the wheel. Payout rates vary in American, European, and French roulette.

With a single and double zero, American roulette has the lowest payouts and a 94.74% RTP. European roulette, featuring a single zero, offers an improved RTP of 97.3%. French roulette tops the charts with a 98.65% RTP, thanks to the La Partage rule, giving players a 50% refund when the ball lands on zero.

The world of top-grossing casino games is diverse and dynamic, with each game offering a unique blend of entertainment, strategy, and chance. As technology continues to evolve, the online casino industry is likely to see even more innovation, captivating players and driving revenue to new heights. Whether it’s the spinning reels of slot machines on the Betway casino, the strategic gameplay of poker, these top-grossing casino games have become a global phenomenon, shaping the gaming industry landscape for years to come.

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