Online slots have continued to grow in popularity over the years thanks to advancing technology, engaging themes and the chance to win big payouts. With so many great games to choose from in 2025, here is our expert pick of the 10 best online slots you should try playing this year.
Variety of Slots
We analyzed over 500 popular online slot titles at Casino Online and selected the very best based on several key factors:
- Popularity – High player traffic and ratings show these games are fan favorites
- Features – Innovative and entertaining bonus games and special features
- RTP – All have a high Return to Player percentage of 95%+
- Wins – Big jackpot prizes awarded on these slot games
- Providers – Top software developers with excellent reputations
So whether you enjoy traditional fruit machines or immersive video slots with 3D graphics and animation, you’re sure to find some exceptional games to play in our ranked list below.
Online Slots Data 2025
| Slot Game | Launch Year | Provider | RTP | Max Win | Volatility |
| Starburst | 2012 | NetEnt | 96.1% | 50,000x | Medium |
| Book of Dead | 2016 | Play’n GO | 96% | 50,000x | Medium |
| Reactoonz | 2017 | Play’n Go | 96.51% | 11,000x | High |
| Buffalo Blitz | 2018 | Playtech | 96% | 50,000x | High |
| Legacy of Dead | 2020 | Play’n GO | 96% | 50,000x | Medium |
| Bonanza Megaways | 2020 | Big Time Gaming | 96% | 250,000x | High |
| Dead or Alive 2 | 2019 | NetEnt | 96.8% | 100,000x | High |
| Jammin Jars | 2018 | Push Gaming | 96% | 50,000x | High |
| Extra Chilli Megaways | 2021 | Big Time Gaming | 96% | 250,000x | High |
| Dragon’s Fire Megaways | 2020 | Red Tiger Gaming | 96% | 20,000x | High |
So there you have it – the top 10 best online slot games we highly recommend playing in 2025 for the most enjoyment, wins and rewards. With innovative features, proven RTP rates and huge jackpot potential, these leading slots offer an exceptional experience for newcomers and seasoned spinners alike.
Starburst
There’s no surprise that Starburst still claims the top spot in 2025. This action-packed cosmic adventure from NetEnt provides an exhilarating slots experience with space-themed visuals and energizing music.
The game’s Win Both Ways mechanic allows you to form winning combinations from both the left and right sides simultaneously. This helps boost your chances of hitting wins regularly across the 5 reels and 10 paylines.
With an RTP of 96.1%, Starburst offers high-value payouts, especially when the Starburst Wilds land and trigger re-spins for even bigger wins. No wonder it remains at the peak of popularity after all these years!
Book of Dead
Exploring ancient Egyptian tombs filled with treasure always makes for a thrilling online slot. That’s why Book of Dead by Play’n GO maintains such a dedicated fan base of players searching for big jackpot wins.
As the intrepid explorer, Rich Wilde adventures across 5 reels and 10 paylines, you’ll uncover mystery scatter symbols and expanding special symbols to boost your rewards. Land at least 3 Book of Dead scatter symbols to trigger the bonus free spins round with a special expanding symbol for huge wins.
With an RTP of 96% and a jackpot payout of 50,000x your bet, Book of Dead provides an exciting and lucrative slots experience you’ll want to keep playing over and over. It’s remained one of the top slots since its release years ago!
Reactoonz
If you’re seeking something more quirky and cute, look no further than Reactoonz from Play’n GO. This energetic alien-themed slot brings the extraterrestrial world to life across a 7×7 grid with Cluster Pays instead of paylines.
Land enough matching alien symbols in a cluster and watch them explode off the reels to make room for more symbols and bigger wins. Trigger bonus features like Quantum Leap when Gargantoon lands and transforms other aliens into high-paying Wild symbols.
With an RTP of 96.51%, Reactoonz provides frequent payouts and a maximum win of up to 11,000x your bet. Its bubbly design and lively gameplay keep you engaged spin after spin hunting for those out-of-this-world prizes.
Buffalo Blitz
When you want action-packed entertainment, Playtech’s Buffalo Blitz always delivers. With incredible 3D graphics and smooth animations, this wildlife slot brings players to the plains and forests of North America.
Form winning symbol combinations across the 6 reels and 100 paylines before the Mighty Buffalo arrives as the game’s Wild symbol. Get ready to chase huge wins across the bonus features like Stampede Spins with Multipliers up to 100x!
Thanks to an RTP of 96%, Buffalo Blitz awards generous payouts and record-setting jackpots worth up to 50,000x your stake. With so many ways to win big, it’s no wonder this progressive megaways slot retains unmatched popularity.
Legacy of Dead
If you loved Play’n GO’s Book of Dead slot, then you’ll also enjoy its epic sequel, Legacy of Dead. Join daring explorer Rich Wilde once again as he searches for lost Mayan treasures across 5 reels and 10 paylines.
Navigate underground labyrinths and temples while gathering scatter symbols to unlock 10 bonus free spins. Keep collecting the Golden Mask symbol during your spins for a maximum win worth 50,000x your bet!
With an RTP of 96%, Legacy of Dead treats players to exciting gameplay and huge payout potential. It’s the perfect online slot for veteran players and new players alike searching for their next big win.
Bonanza Megaways
When it comes to modern online slots, Bonanza Megaways from Big Time Gaming offers an unrivaled experience. With 117,649 ways to win across 6 reels, this mining-themed slot takes you underground in search of glittering gems and gold.
The Cascading Symbols create frequent payouts, especially when you trigger the Free Spins bonus round. Collecting more scatter symbols awards you more spins and increasing multipliers up to 12x for mega prizes!
Thanks to the Megaways engine and high RTP of 96%, Bonanza remains hugely popular for its massive 117,649x max win worth up to 250,000x your stake. Strike gold on those reels today!
Dead or Alive 2
Saddle up partners and get ready to hunt outlaws across the 5 reels of this epic Western slot from NetEnt. In the action-packed sequel Dead or Alive 2, the rich graphics will transport you back to the Wild West as you try to catch the bandits for big rewards.
With 720 ways to win and high volatility, the payouts come fast and frequent. Land on a showdown with the outlaws in the bonus round to trigger 12 free spins and special Wild symbols for huge wins worth 100,000x your bet!
Thanks to an RTP of 96.8%, Dead or Alive 2 offers better odds and even bigger payout potential than the original slot. Wanted dead or alive, these bandits will help unlock your next big jackpot prize!
Jammin Jars
Launch into the world of fruit slots with a modern twist across 8 reels and 8 rows in Jammin Jars by Push Gaming. This vibrant slot machine brings a candy land of colors and flavors packed with winning potential.
Land matching fruit symbols in clusters for instant wins. The more matching jars you hit, the higher your multiplier climbs for epic prizes, especially on the Free Spins round. Jam in wild jam jars and rainbow jars to unlock rewards up to 50,000x your initial bet!
With an RTP of 96%, Jammin Jars serves up exciting, sweet gameplay with a maximum win of 50,000x your stake. Its high volatility brings solid returns for players craving big rewards.
Extra Chilli Megaways
When you want an ultra-spicy slots session, Big Time Gaming’s Extra Chilli Megaways delivers the heat. Hop into a colorful Mexican kitchen across 6 reels and over 200,000 ways to win big prizes.
Collect chili scatter symbols to unlock free spins plus added wild reels to create sizzling winning combinations across the reels. Cascading wins lead to increasing multipliers up to 32x for some extra hot rewards.
Thanks to a 96% RTP and 117,649 ways to win, Extra Chilli Megaways offers an incredible 117,649x max payouts worth 250,000x your bet.
Dragon’s Fire Megaways
Unleash the fiery potential of Red Tiger Gaming’s Dragon’s Fire Megaways. With 117,649 ways to win across 6 reels, this fantasy slot treats you to epic gameplay and serious payout potential.
Take flight on the back of dragons while collecting color-coded gem symbols and flaming wilds for sizzling wins. The Dragon’s Rage feature transforms losing spins into 5 re-spins with increasing multipliers for red-hot rewards.
A 96% RTP keeps this Megaways slot burning bright with possibilities. Claim a max win worth 20,000x your bet when the high-paying dragon symbols land just right.
Whether you fancy spinning the reels of an iconic classic like Starburst, or prefer modern slots like Extra Chilli Megaways, there are exciting titles here to match everyone’s preferences and playing style. Just pick a high-quality game from our ranked list to start hitting big wins online today.