Top 10 Highest-Grossing Online Casino Games in 2025

The online gambling industry has seen massive growth over the past several years. As technology continues to advance, online casinos are providing players with more immersive and engaging experiences. In 2025, the global online gambling market is projected to be worth over $127 billion.

Baccarat – $9.8 Billion

The simple card comparison game of Baccarat takes the #10 spot, bringing in almost $10 billion in gross revenue for online casinos like Princess Casino Romania and others in 2025. Baccarat has become popular among high rollers, who appreciate the game’s elegant simplicity. As VIP baccarat expands, more premium versions of the game are emerging.

Roulette – $12.4 Billion

This casino classic lands at #9. Roulette has fascinated players for centuries with its spinning wheel of fortune. Now in the digital age, online variants like multi-wheel and 3D roulette are boosting engagement. Increased betting options and customized visuals account for roulette’s high revenue.

Craps – $13.2 Billion

The dice game of Craps rolls in at #8. The fast-paced, social excitement of craps tables has translated smoothly to online play. Mobile compatibility also helps players enjoy craps anywhere. As online casinos enhance craps with bonuses and tournaments, revenue continues rising.

Scratch Cards – $17.1 Billion

These digital scratch-offs claim the #7 position. Scratch card games captivate players with easy play style, quirky themes and potential for huge payouts. Their lottery-style instant wins make scratch cards popular for casual gambling. Major jackpots driving sales also contribute to 2025’s gross of over $17 billion.

Keno – $19.2 Billion

Coming in at #6 is the numbers game Keno. Its frequent drawings and generous payouts for matching numbers appeal to player superstitions. Online versions allow massive multipliers, flashy visuals and large bet sizes for giant wins. These features likely helped keno’s gross revenue top $19 billion last year.

Blackjack – $26.3 Billion

With its classic appeal and strategic play, Blackjack secures the #5 ranking. Lets for side bets, betting behind and customized blackjack varieties accommodate different preferences. Live dealer blackjack also brings the authentic casino experience online, boosting global revenue by over $26 billion for the year.

Poker – $31.9 Billion

The popular card game Poker captures the #4 spot. Online poker lets people test their skills against others without visiting a poker room. Features like player stats and move histories assist strategy. Major tournaments, celebrity players, live-streamed events and the social aspect also drive online poker profits over $31 billion.

Bingo – $41.7 Billion

The classic ball draw game Bingo comes in third place. Beloved for its community and prize potential, online bingo replicates the live experience with chat functions and organization into rooms based on jackpot sizes. Versatile card prices allow casual and serious players to coexist. Modern variants like speed bingo also pull revenue, which reached above $41 billion last year.

Lottery – $63.5 Billion

Digital lottery games snag runner-up, generating over $63 billion in 2025. Hefty prize pools, extensive global reach and convenience are major appeals. Lotteries incorporate trends like syndicates for group play and subscription plans for easy repeat purchases. International mega-millions lotteries accounted for huge shares of revenue last year.

Slots – $87.2 Billion

Claiming the #1 spot are Online Slots. These gaming machines brought in a staggering $87 billion gross revenue for online casinos last year. Modern video slots drive profits with creative concepts, progressive jackpots and mobile optimization. Slots now integrate trends like shared jackpots between casinos, VR technology and branded IP to pull in massive profits year after year. Their intuitive gameplay, visual engagement and promise of jackpot wins entice all types of players.

With these games leading the way, the online casino industry seems poised for continued prosperity over the next several years. Players around the world are drawn to convenient mobile play, big payout potential and social interaction. As technology enables more immersion and security, revenue streams show no signs of slowing down. Software providers continue raising the bar with innovative games and features to keep attracting customers worldwide.