Casino enthusiasts looking for the best online slot games are well and truly spoiled for choice nowadays, with numerous exceptional titles available from software providers like Pragmatic Play, NetEnt, and Big Time Gaming
The sheer quality can make selecting a game pleasantly difficult, as players must decide between a range of exciting bonus features, potentially lucrative multipliers, and innovative game mechanics. This is where our studious Betsson experts come to the forefront, with extensive collective experience providing the perfect foundation for our rating system.
We’ll investigate the top 10 best online slot games throughout this article, using our first-hand experience as dedicated casino enthusiasts to highlight the current cream of the crop. Whether you’re looking for the best paying online slots or leading Megaways titles with up to 117,649 ways to win, we’ve got you covered.
Sweet Bonanza
Sweet Bonanza is renowned for being one of the best payout slots online, with players treated to a maximum multiplier that can hit heights of 21,175x. The candy-inspired game quickly gained popularity after its 2019 release, swiftly establishing itself as a flagship slot for developer Pragmatic Play. Sweet Bonanza uses a pay-all-way mechanic that is simultaneously a breath of fresh air compared to standard payline-based gameplay and easy to understand for beginners.
But this is only the tip of the iceberg regarding why Sweet Bonanza is one of the best online slot games to play in 2024 and beyond. Players enjoy a favourable 96.49% RTP and medium-to-high volatility, ensuring a healthy hit frequency further boosted by the popular tumbling reels concept. Our experts are huge fans of the free spins bonus, especially with the potential to unlock unlimited re-triggers for landing three scatters. Check these essential statistics before giving it a spin:
- Provider: Pragmatic Play
- RTP: 96.49%
- Paylines/Mechanic: All Ways
- Reels: 6
- Maximum Multiplier: 21,175x
- Volatility: Medium-to-High
- Bonus Features: Free Spins, Tumbling Reels, Multipliers, Wilds
Gates of Olympus
Not only is Gates of Olympus arguably the top ancient Greek-inspired title on the market, but it’s also one of the best online slot games in general. There’s no denying Pragmatic Play knows how to craft an exceptional game, with this high-volatility option offering a range of eye-catching selling points. Some of our favourite examples include the strong 5,000x maximum multiplier, above-average 96.5% RTP, and visually stunning design.
Seriously, online slot games don’t get much more beautiful than Gates of Olympus. The provider has pulled out all the stops with high-definition aesthetics and customised slot symbols steeped in ancient Greek mythology. It makes for a highly immersive atmosphere taken to the next level by a range of dynamic bonus features. Players enjoy tumbling reels, random multipliers, progressive multipliers, and wilds. Gates of Olympus is also commonly part of some of the best online slots offers, which is an added benefit. Get the basic lowdown below:
- Provider: Pragmatic Play
- RTP: 96.5%
- Paylines/Mechanic: All Ways
- Reels: 6
- Maximum Multiplier: 5,000x
- Volatility: Very High
- Bonus Features: Free Spins, Tumbling Reels, Random Multipliers, Progressive Multipliers, Wilds
Sugar Rush
Sugar Rush is another worthy addition to our list of the best slots to play in 2024. Pragmatic Play stumbled across a successful sweetie-inspired formula with this slot, initially released in 2013. The developer has since made hits like Sweet Bonanza, but for some of our experts, nothing can beat Sugar Rush. We love the cluster pay mechanism, a gameplay mechanic that is sadly much rarer nowadays due to the rise of Megaways and other options.
Nothing beats the thrill of matching identical clusters of nine or more symbols, bringing to mind popular mobile games and offering something a little different. Sugar Rush is also one of the best online slot games for brave high rollers, with very high volatility and a 5,000x maximum multiplier contributing to sizable winning spins if you’re lucky. The 96.5% RTP is the cherry on top, rounding off an excellent addition to the Pragmatic Play arsenal. Here are the main things to know:
- Provider: Pragmatic Play
- RTP: 96.5%
- Paylines/Mechanic: Cluster Pays
- Reels: 6
- Maximum Multiplier: 5,000x
- Volatility: Very High
- Bonus Features: Free Spins, Tumbling Reels, Progressive Multipliers, and Wilds
Starlight Princess
Omitting Starlight Princess from our round-up of the best online casino slots is not an option, as this is one of the most distinctive and enjoyable titles on the market. Pragmatic Play flexes its aesthetic muscles here, using a perfectly realised manga-inspired theme complete with lovable characters and unique symbols. Starlight Princess is one of the best online casino slots for various reasons. Some of our favourite highlights include the 5,000x maximum multiplier, the cluster pays mechanic, and the 96.5% RTP.
Starlight Princess is also one of the best slots 2024 has to offer due to its bountiful array of bonus features. Pragmatic Play includes tumbling reels, multipliers, potentially unlimited free spins, an ante bet, and a ‘buy free spins’ option for most jurisdictions. An added benefit is the fact that winning-symbol combinations only require eight icons rather than the more customary nine. In our experience, this can make all the difference. These are the main Starlight Princess facts at a glance:
- Provider: Pragmatic Play
- RTP: 96.5%
- Paylines/Mechanic: Cluster Pays
- Reels: 6
- Maximum Multiplier: 5,000x
- Volatility: Very High
- Bonus Features: Free Spins, Tumbling Reels, Progressive Multipliers, and Wilds
Bigger Bass Bonanza
Bigger Bass Bonanza is highly regarded as one of the best slots to play online, with its streamlined gameplay and very high volatility gripping legions of online slots fans into its net. Players enjoy a powerful 4,000x maximum multiplier and above-average 96.71% RTP (one of the best online slots RTP)—impressive statistics that are up there with the best online slots games.
Our experts unanimously agree that Bigger Bass Bonanza is the best title in Pragmatic Play’s popular series and best slots in casino online. This is mainly due to the supercharged free spins bonus feature, which grants up to 20 re-triggerable free spins with boosted high-value money symbols that can hit 4,000x. Check the main stats below:
- Provider: Pragmatic Play
- RTP: 96.71%
- Paylines/Mechanic: 12 Paylines
- Reels: 5
- Maximum Multiplier: 4,000x
- Volatility: Very High
- Bonus Features: Free Spins, Extra Reels
Book of Dead
Book of Dead is a mainstay at all the best online slot games casino platforms and is a game we’re particularly fond of at Betsson. Rich Wilde is the protagonist, an adventurer looking for riches among ancient Egyptian tombs. The exciting and immersive theme is the main reason players are initially hooked, but Play’n GO backs this up with additional benefits like the 5,000x maximum multiplier, high volatility, and 96.21% RTP.
We could go on for days about why Book of Dead is one of the all-time best casino slots, but one of our favourite reasons is the beginner-optimised gameplay. The slot uses a conventional 5-reel grid with 10 paylines that form the perfect introduction to online slot gambling. Play’n GO also includes an iconic bonus round, where players enjoy potentially unlimited free spins if they find enough Book of Dead scatters. This all takes place in a dedicated sacred chamber, providing an exciting change of scenery. Here are the main facts:
- Provider: Play’n GO
- RTP: 96.21%
- Paylines/Mechanic: 10 Paylines
- Reels: 5
- Maximum Multiplier: 5,000x
- Volatility: High
- Bonus Features: Free Spins, Expanding Symbols
Starburst
Several years after its release, Starburst remains one of the best online slots 2024 has to offer. Widely regarded as an all-time great, NetEnt’s opulent jewel and space-themed slot has served as a benchmark for iGaming entertainment since 2012. Starburst still has some of the industry’s best graphics, and the simple gameplay makes a welcome change to the prevailing complexity of things like the Megaways mechanic.
The fact that this is one of the best online slot games and only uses a simple 5×3 grid with 10 paylines and one straightforward bonus feature is testimony to its top-quality design. Players are treated to three re-spins with expanding wilds whenever three wilds appear on the middle three reels, delivering multipliers up to 500x. It’s not the largest maximum win in the world, but Starburst’s low volatility more than makes up for it, enabling frequent winning spins. The main stats look like this:
- Provider: NetEnt
- RTP: 96.09%
- Paylines/Mechanic: 10 Paylines
- Reels: 5
- Maximum Multiplier: 500x
- Volatility: Low
- Bonus Features: Expanding Wilds, Re-Spins
Reactoonz
Reactoonz is, without a doubt, one of the best online slot games for winning bonus round prizes, with Play’n GO including several unique special features. It’s truly difficult to find a game with more bonuses, and how the critically acclaimed developer has blended these with the overall theme is inspiring. Reactoonz features several cute alien lifeforms that all react in differing ways once you charge the Quantum Leap metre on the right-hand side of the 7×7 grid. For example, you can enjoy transforming wilds, high-value transforming symbols, low-value eliminations, and wild intersections that can completely revamp the existing symbols in your favour.
And this is just the start. Reactoonz also has a trademark Gargantoon feature, where 3×3 wilds are randomly added to the grid. These can break down into 2×2 and 1×1 wilds on the next two cascades, providing ample opportunity to hit winning combinations. On top of all this, Play’n GO included an instability feature (4–8 random wilds), a Gigantoonz mechanic with identical adjacent symbols getting stuck together, and a fluctuation feature affecting low-value icons. It all makes Reactoonz one of the best payout slots 2024 has to offer. Here is a factual round-up:
- Provider: Play’n GO
- RTP: 96.51%
- Paylines/Mechanic: Cluster
- Reels: 7
- Maximum Multiplier: 4,570x
- Volatility: High
- Bonus Features: Symbol Transformations, Wild Modifiers, Expanding Wilds, Cascading Reels, Random Wilds, Gigantoonz Symbols
Extra Chilli
Big Time Gaming is arguably one of the most important software provider currently operating, known for creating some of the best RTP online slot games and the popular Megaways mechanic. Extra Chilli is our experts’ pick of the bunch, a spicy title influenced by vibrant Mexican culture and cuisine. The RTP can hit 96.82% with the feature drop switched on, and players can enjoy up to 117,649 ways to win courtesy of the Megaways engine.
Extra Chilli has very high volatility, typified by the 20,000x maximum multiplier. Available during the free spins bonus feature, due to the progressive multiplier, this potential jackpot makes Extra Chilli one of the best payout online slot games. This title was the next game released by Big Time Gaming after the landmark Bonanza slot, and you can tell the Australian software developer went to the next level of effort to make the game even better. We’ve listed the essential information below:
- Provider: Big Time Gaming
- RTP: Up to 96.82%
- Paylines/Mechanic: Megaways (Up to 117,649 Ways to Win)
- Reels: 6
- Maximum Multiplier: 20,000x
- Volatility: Very High
- Bonus Features: Cascading Reels, Free Spins, Gamble, and Progressive Multipliers
Gonzo’s Quest
Gonzo’s Quest can convincingly stake a claim to be the best casino online slots game of all time, such is its mercurial impact on the industry. NetEnt’s conquistador-themed title is renowned for its intricate graphics, immersive theme, and unequivocally streamlined gameplay. Players are treated to an effortlessly simple 5-reel mechanic with 20 paylines, making Gonzo’s Quest a great way to get to grips with the overall online slot gambling experience.
It’s a landmark game in so many respects, with NetEnt’s Avalanche reels concept making its debut in the 2011 release. This removes all winning symbol combinations from the grid, allowing new icons to fall in their place and potentially creating new winning combinations. One of the top Gonzo’s Quest advantages is the 37,500x maximum multiplier—an eye-catching prize that also goes some way in explaining why this legendary slot has garnered so much popularity. Check below for the vital statistics:
- Provider: NetEnt
- RTP: 95.97%
- Paylines/Mechanic: 20 Paylines
- Reels: 5
- Maximum Multiplier: 37,500x
- Volatility: Medium-to-High
- Bonus Features: Avalanche Reels, Progressive Multipliers, and Wilds
