With dozens of new titles reaching online casino platforms every month, the dynamic world of online slots never stands still, and May 2025 is no exception. From ancient Egypt-themed fishing trips and Irish-inspired cascading reels to pirate-filled treasure quests, this month’s slot releases already look promising.
Whether you’re hunting for treasures in the Nile or dealing with voodoo magic, you can expect top-tier action filled with sticky wilds, explosive multipliers, and maximum wins soaring up to 70,000x. But will these slots deliver what you’re after? Let’s explore them together so you know which releases to dig into when they hit the shelves.
Boat Bonanza CrocoNile!, Play’n GO
| Software | Play’n GO |
| Slot Type | Video Slot |
| Progressive | No |
| Bonus features | Catch Symbols, Catch Feature, Depth Charge, Spear Shot, Croc Carnage, Croc’n Spin and Sobek’s Rage |
| RTP | 96.25% | 94.25% | 91.25% | 87.25% | 84.25% |
May begins with an expedition to the Nile, a river full of ancient treasures waiting to be retrieved. While the game focuses on fishing, a common theme in the industry, Play’n GO’s Boat Bonanza CrocoNile! offers a fresh twist to the franchise — an Egyptian-flavoured fishing slot with a bite.
In this quirky adventure, ancient Egyptian mystique meets the thrill of reeling in the big one on a 5×4 grid with 12 paylines. Players get to cast their nets into crocodile-infested Nile, hoping to grab hold of a treasure instead of an ancient reptile.
When fishing and ancient Egyptian themes collide, the familiar fish symbols meet snakes, cat and jackal statues. Wilds hit on all reels here, substituting everything except Croc Coins and offering a 200x multiplier when you land five at once. Meanwhile, the maximum win sits at a decent 6,000x.
While the base game is already a lot of fun, it’s the Hold ‘n’ Respin round that truly gets things going. Triggering Sobek’s Rage takes 5 Croc Coins, with every additional one granting an extra respin. Once you’re out of spins, Croc Coins will reveal multipliers ranging from 2x to 25x.
Boat Bonanza CrocoNile! features an RTP that goes up to 96.25%, with four other versions whose return-to-player percentages range between 84.25% and 94.25%. Pair that with medium volatility, sticky symbols, and respins, and you get a fun, fast-paced game with plenty of opportunities to reel in a fortune.
Witch Heart Megaways, Pragmatic Play
| Software | Pragmatic Play |
| Slot Type | Video Slot |
| Progressive | No |
| Bonus features | Cascading, Witch Heart Wild, Free Spins, Ante Bet, and Feature Buy. |
| RTP | 96.49% |
Pragmatic Play has brewed a potent potion with Witch Heart Megaways. This legendary studio’s May release explores voodoo magic as players head into the lair of a sorceress who seems to be working on a love elixir. Drink it, and it just might bring fortune alongside love.
The design of Witch Heart Megaways feels gothic and sinister, with a full moon illuminating the dark forest landscape. Its central 6-reel grid sits on a stone structure and displays traditional royal letters, candles, bottles, cauldrons, cats, owls, and the witch herself.
Ruby heart-shaped gems, known as Witch Heart Wilds, are also present and appear in golden frames. Hit three consecutive wins with these, and you’ll get 2–9 additional wilds on the subsequent tumble. Meanwhile, landing between three and six bonus symbols triggers the bonus round with 10–30 free spins, depending on the number of symbols.
If patience isn’t your strong suit, you can also purchase your way into the free spins round at 150x your total bet. Alternatively, you can double your chance of triggering the round at the cost of an additional 50% of your active stake.
Witch Heart Megaways has a default RTP of 96.49%, although two lower RTP variants are also available. As for the maximum win, lucky players can walk away with a generous amount of up to 9,000x their bet.
Blackbeard’s Bounty, BGaming
| Software | BGaming |
| Slot Type | Video Slot |
| Progressive | No |
| Bonus features | Avalanche, Bonus Bet, Buy Feature, Cascading, Free Spins, Gonzo mechanic, Multiplier, Scatter symbols, Wild |
| RTP | 96.2% |
Are you ready to risk it all and seize the bounty? If so, prepare to set sail with the legendary Blackbeard himself and look for buried treasures in BGaming’s pirate-themed release with an RTP of 96.20%.
The famous game provider nails the ambiance with stormy skies, a hidden cove, and a familiar 5×3 grid made from what appears to be the remains of a wooden ship. Blackbeard’s Bounty features 243 ways to win, while the maximum multiplier goes up to 20,000x your bet, creating a potential for a jackpot-like payout.
The cascading reels mechanic in this swashbuckling slot is capable of setting off a chain reaction, leading to even bigger rewards. Wilds appear after every tumble and boost your chances of consecutive wins, while the multiplier symbol is even more rewarding, with values up to 1,024x.
Meanwhile, hitting three or more scatters triggers the game’s bonus round, containing 7–11 free spins. While they can’t be retriggered during the round, you get to watch as the multiplier climbs with every win and dishes out significant rewards.
Blackbeard’s Bounty lets players boost their chances of activating the bonus game through the Golden Bet. Meanwhile, the Ante Bet feature gets automatically disabled if you opt for the Feature Buy, which has two options. You can either get three scatters and seven free spins for 100x your bet or enter the bonus round with 7–11 spins for 200x your total bet.
Crabby’s Gold, Play’n GO
| Software | Play’n GO |
| Slot Type | Video Slot |
| Progressive | No |
| Bonus features | Wild Symbol, Coin Collect, Rum Wilds, and Hold & Spin. |
| RTP | 96.25% |
Crabby’s Gold is Play’n GO’s most recent take on pirate-themed slots. In this promising release set on a desert island, players get to meet a crew of ragtag pirates and try to land a win from a gold-obsessed crustacean — Crabby.
The game is set on a sun-drenched island with a beach that holds a treasure-stuffed chest, a rum barrel, and a few palm trees. Meanwhile, a pirate ship with black sails and a skull-shaped rock can be seen in the distance, giving depth to the crystal-clear water. A 6-reel grid takes center stage, allowing the action to unfold and offering 4,096 ways to win.
Like most Play’n GO titles, Crabby’s Gold has a strong RTP of 96.25% with four other lower-RTP variants. It’s also packed with engaging, treasure-hunting mechanics, like the Coin Collect, where multipliers appear randomly during spins. Meanwhile, the Hold’n Spin feature makes the coins stick and fill up your reels, leading to some huge payouts.
One of Crabby’s Gold’s standout features is the Doubloon or Nothing, which lets players try their luck and gamble their winnings for a chance to double them. The Rum Barrel meter acts as the rum bottle collection mechanic that lets you unlock multiple types of powerful wilds.
This visual treat with sticky wilds, expanding symbols, and multipliers also has a massive 70,000x max win potential — easily one of the biggest on offer this May.
Lucky Ryan GigaBlox, Yggdrasil Gaming
| Software | Yggdrasil Gaming |
| Slot Type | Video Slot |
| Progressive | No |
| Bonus features | Avalanche, Gigablox, Progress Bar, Wild Symbol, Rock & Luck, Lucky Gigablox, High Luck, Free Spins, and Feature Buy. |
| RTP | 96% |
This May, Yggdrasil Gaming is bringing the luck of the Irish to the table. The renowned developer’s new Lucky Ryan GigaBlox features a lively yet mischievous musical leprechaun whom we’ve met in Rainbow Ryan and Rainbow Ryan 2.
But this time around, Ryan sits atop the game’s golden-framed 6×5 grid with eight paylines. Behind him is an entire Irish fairyland with a rainbow and a green meadow full of 4-leaf clovers that might just bring you enough luck and let you hit the game’s maximum win of 6,260x.
In Lucky Ryan GigaBlox, high volatility gameplay meets a pretty standard RTP of 96%, with two lower versions also available. Meanwhile, the popular cascading reels mechanic (avalanche) perfectly combines with the Gigablox feature, which transforms reels into 2×2, 3×3, or 4×4 symbols and boosts your chances of hitting a big win.
Land a few more consecutive avalanches past the Gigablox, and you’ll be met with wilds, which help you form winning combos. In addition, you can also trigger eight free spins, which you either get through nine straight avalanches or by landing four or more scatters. During FS, every avalanche boosts the multiplier, which can get up to 50x.
And if you’re down on luck and can’t seem to land the scatters or the successive avalanches, you can also buy your way into the free spins round for 100x the bet. So, it really is all rainbows and sunshine with Lucky Ryan GigaBox.
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