Best NetBet Slots

NetBet sits among the more established UK online casino brands, with a curated slot library spanning every major provider. The GamblersPro team has tested hundreds of games and identified the best NetBet slots for bonus features, smooth gameplay, high-quality visuals, volatility, and potentially massive progressive jackpots.

What Are the Best NetBet Slots Right Now?

As our NetBet Casino review shows, the best slots bring together standout gameplay, strong RTP rates, and a wide mix of themes ranging from classic fruit machines to feature-rich video slots. The 14 games below cover the full spectrum: progressive jackpots, high-RTP classics, modern cluster pays, Megaways releases, and extreme-volatility outliers. Here’s a quick overview before the detailed reviews.

Starburst

NetEnt’s 2012 release remains one of the most-played slots in the UK. The 5-reel, 10-payline structure is deliberately simple, with seven core symbols (five gemstones, plus bar and 7) and a single special mechanic. Stakes range from £0.10 to £100 per spin, with a 96.09% RTP and low volatility, making it one of the more bankroll-friendly entries on this list. Max win sits at 500x the stake.

The mechanic that built Starburst’s reputation is the expanding Starburst Wild on reels 2, 3, and 4. When a wild lands, it expands to fill the entire reel and triggers a respin, with up to three respins available if additional wilds keep landing on the next two reels. There are no free spins, no bonus rounds, no progressive jackpot. The simplicity is the appeal: short sessions, frequent small wins, and just enough mechanical interest to keep the reels moving. A reasonable starting point for anyone new to NetBet’s slot library.

Mega Moolah

Microgaming’s safari-themed progressive remains one of the most famous online slots, having paid out multiple Guinness-record-holding jackpots since its 2006 release. The base game runs on a 5-reel, 25-payline structure with a relatively modest 88.12% RTP, the lower figure reflecting that the bulk of the theoretical return is allocated to the four-tier progressive jackpot pool. Stakes range from £0.25 to £6.25 per spin. Symbols include lions, elephants, zebras, and the Lion wild, with the Monkey scatter triggering free spins.

The progressive jackpot is the headline draw. Mega Moolah’s four jackpot tiers (Mini, Minor, Major, and Mega) can trigger randomly on any spin, with no minimum bet requirement and no specific symbol combination needed. The Mega jackpot seeds at £1 million and has paid out tens of millions of pounds across multiple historic wins. Free spins are also available, with three or more Monkey scatters awarding 15 free spins where all wins triple. For players prioritising progressive jackpot potential, this is the genre benchmark.

Gladiator Jackpot

Playtech’s Gladiator Jackpot remains one of its most successful progressive jackpot slots. Themed on the 2000 Russell Crowe film, the reels feature characters including Maximus and Commodus alongside the Colosseum, gladiator armour, and Roman weaponry. The 5-reel, 25-payline structure suits both casual and high-stakes play, with stakes ranging from £0.25 to £1,250 per spin. The game also features a 5,000-coin base game jackpot for landing five Emperor symbols on a payline.

Two main bonus features drive the gameplay. The Colosseum Free Spins round is triggered by collecting three or more scatter symbols, with a stone-pick mechanic determining the number of spins, the active multiplier, and additional scatters and wilds. Landing an Emperor symbol on the middle reel during free spins awards three additional spins. The Gladiator Jackpot bonus round is the standout, triggered by landing three Gladiator jackpot symbols. Players pick from Roman helmets to reveal gold, silver, or bronze tokens, with nine gold helmets awarding the top progressive jackpot. The slot has paid out multi-million-pound jackpots multiple times since its release, including a £2 million-plus payout in 2013.

Bonanza Megaways

Big Time Gaming’s Bonanza Megaways is the slot that defined the Megaways genre when it launched in December 2016. The 6-reel structure with a horizontal mining-cart reel up top produces between 64 and 117,649 ways to win on every spin, set against a stylised gold-mine backdrop with waterfalls flanking the reels. Stakes run from £0.20 to £20 per spin, with a 96% RTP and high volatility. Max win sits at 26,000x the stake (upgraded from the original 12,000x ceiling).

The cascading reels mechanic is central to gameplay. Winning combinations explode and new symbols drop in, with reactions continuing as long as new wins keep forming. The Free Spins feature triggers when four scatters spelling G-O-L-D land anywhere in view, awarding 12 free spins with +5 spins per additional scatter. The progressive multiplier within free spins increases by +1x with every consecutive cascade, with no upper cap, which is where the largest payouts typically emerge. As the slot that established the Megaways engine and inspired hundreds of imitators, Bonanza Megaways earns its place among the best NetBet slots through historical significance as well as gameplay quality.

Sweet Bonanza

Pragmatic Play’s candy-themed scatter pays slot has become one of the most-streamed slots in the UK since its 2019 release. The 6×5 grid uses a “pay anywhere” mechanic where wins form when 8 or more matching symbols land anywhere on the grid, with cascading tumbles producing chains of consecutive wins. Stakes range from £0.20 to £100 per spin, with a 96.49% default RTP (95.45% lower variant exists at some operators) and high volatility. Max win sits at 21,100x the stake.

The Free Spins round drives the bigger payouts. Four or more lollipop scatters trigger 10 free spins, with retriggers possible by landing 3 or more scatters during the round. During free spins, Rainbow Bomb Multiplier symbols can land carrying values from 2x to 100x, with multiple multipliers in view adding together and applying to all wins on that spin. A 25% Ante Bet doubles the chance of triggering free spins, and a 100x feature buy provides direct access where regulations permit. The combination of a 50% hit frequency in the base game and explosive multiplier potential in free spins explains why this title remains one of the most popular slots at any UK casino.

Great Rhino Megaways

Pragmatic Play’s African wildlife Megaways title features rhinos, flamingos, crocodiles, gorillas, and other wildlife symbols across a 6-reel dynamic grid producing up to 200,704 ways to win on every spin. Stakes range from £0.20 to £125 per spin, with a 96.58% RTP and high volatility.

The Tumble feature operates throughout both base game and free spins, with winning symbols removed and new ones cascading in to potentially create chained wins from a single spin. The Free Spins round is triggered by landing scatter symbols and awards up to 15 free spins with an unlimited progressive multiplier that increases with each consecutive tumble. Free spins can be retriggered by landing additional scatters during the round. With over 200,000 ways to win, tumbling reels, and the unlimited multiplier mechanic in free spins, Great Rhino Megaways stands among the strongest Megaways picks in NetBet’s library.

Gates of Olympus

Pragmatic Play’s Greek mythology release shares mechanical DNA with Sweet Bonanza but applies it to a more aggressive volatility profile. The 6×5 scatter pays grid awards wins for 8 or more matching symbols anywhere on the reels, with Zeus presiding over the action from the right of the screen. Stakes range from £0.20 to £100 per spin, with a 96.50% RTP (95.51% and 94.50% lower variants exist) and very high volatility (5/5 on Pragmatic’s scale). Max win sits at 5,000x the stake.

The defining mechanic is the multiplier orb system. Random multiplier orbs ranging from 2x to 500x can land during any spin or tumble, and when multiple orbs appear, their values are added together and applied to the total spin win. Four or more Zeus scatters trigger 15 free spins, where the multiplier behaviour shifts: each multiplier that lands during a winning spin adds to a running total multiplier that persists for the rest of the round, allowing values to compound dramatically. A 25% Ante Bet doubles scatter frequency, and a 100x feature buy provides direct bonus access where permitted. Lower max win than Sweet Bonanza, but substantially higher multiplier ceiling makes this a different mathematical proposition.

Book of Dead

Play’n GO’s Book of Dead remains one of the best Egyptian slots ever produced and a cornerstone of the studio’s Rich Wilde adventure series. The reels feature the Eye of Horus, Anubis, Pharaohs, Ankhs, and Rich Wilde himself, the explorer protagonist whose successful debut here led to multiple sequel slots. The 5-reel, 10-payline structure is deliberately classical, with stakes ranging from £0.10 to £100 per spin, a 96.21% RTP, and high volatility. Max win sits at 5,000x the stake.

The slot has a single bonus feature: a free spins round triggered by landing three or more Book scatters. The round starts with 10 free spins and can be retriggered an unlimited number of times. Before the round begins, one symbol is randomly selected as the expanding symbol. During free spins, whenever that symbol appears it expands to cover the entire reel, regardless of payline position, creating potential full-screen wins. The Book itself acts as both the wild and scatter symbol, substituting for any pay symbol while also paying as a scatter. A gamble feature also activates after any base game win, letting players double or quadruple winnings with a correct card guess. Simple, mechanically clean, and one of the most consistently popular slots at UK and European casinos.

Reactoonz 2

Play’n GO’s sequel to the cult-favourite Reactoonz expands the original alien cluster pays formula with new mechanics layered on top. The 7×7 grid uses cluster pays where 5 or more matching symbols connecting horizontally or vertically form winning combinations, with cascading wins removing winning symbols and dropping new ones into place. Stakes range from £0.20 to £100 per spin, with a 96.20% default RTP and high volatility. Max win sits at 5,083x the stake.

The mechanical depth is the defining feature. Two separate charge meters (the Quantumeter and the Fluctometer) track different cluster behaviours, with the Fluctometer charged by Fluctuating symbols appearing in clusters and the Quantumeter charged when Electric Wilds participate in wins. Filling the Fluctometer adds up to 3 Electric Wilds to the grid. The Quantumeter has 4 charge levels, activating Energoon Wilds, with level 3 introducing a 3×3 Gargantoon and level 4 applying a 2x multiplier to all wins involving Gargantoon Wilds. The Wild Pair Explosion feature destroys symbols in lines or grids when triggered. There are no traditional free spins, with all the action happening through layered chain-reaction mechanics. A genuinely different mechanical experience from anything else on this list, and one of the best slots on NetBet for players who prefer cluster pays over paylines.

Mega Fortune

NetEnt’s Mega Fortune is one of the most legendary progressive slots online, themed around the wealth and luxury that the progressive jackpot promises to deliver. The reels show diamonds, fancy watches, wads of cash, cigars, limousines, and other symbols of opulence. The 5-reel, 25-payline structure has stakes ranging from £0.25 to £50 per spin, with a 96.6% RTP and low-to-medium volatility. The highest-paying base game symbol is the speedboat, which pays 400x for five on a payline.

Two main bonus features support the progressive jackpot. The Free Spins round awards 10 free spins with a 5x multiplier on all wins. The headline mechanic is the Bonus Wheel jackpot feature, triggered by landing three bonus wheel symbols on a payline. Players spin a three-tier wheel system, with successful spins on the inner wheels leading deeper into the bonus structure. Reaching the centre triggers the Mega progressive jackpot, which seeds at £1 million and has paid out historic eight-figure jackpots, including a record-breaking €17.86 million payout in 2013 that held the Guinness World Record for the largest online slot jackpot for several years. One of the most lucrative slots in NetBet’s progressive lineup.

Buffalo King Megaways

Pragmatic Play’s North American wildlife Megaways title sits among the more accessible Megaways releases on this list, with a 96.52% RTP, high volatility, and up to 200,704 ways to win. The reels feature mountain lions, bald eagles, wolves, and the legendary buffalo across a 6-reel dynamic grid set against a Monument Valley sunset backdrop. Stakes range from £0.20 to £125 per spin, with max win capped at 5,000x the stake.

The Tumble feature operates throughout play, with winning symbols clearing and new ones cascading into place. Free spins are triggered by landing 4, 5, or 6 bonus symbols, awarding 12, 17, or 22 free spins respectively along with a scatter prize of 5x, 20x, or 100x the bet. The Free Spins multiplier mechanic differs from most Megaways slots: rather than a progressive cascade multiplier, wilds appear with x2, x3, or x5 multipliers attached, and multiple wild multipliers within a single spin sequence add together before applying to the total win. Multipliers reset between free spins rather than accumulating across the whole round. A 25% Ante Bet doubles free spins trigger frequency, and a 100x feature buy guarantees a 4-6 scatter trigger on the next spin.

Money Train 4

Relax Gaming’s fourth and final instalment in the Money Train series sits at the absolute extreme end of slot volatility, with a 150,000x maximum win that’s the highest in the franchise’s history. The 6×6 grid uses scatter pays where 8 or more matching symbols anywhere on the reels form a winning combination, set in a futuristic dystopian off-world environment. Stakes range from £0.10 to £6 per spin, with a 96.10% default RTP (96.50% feature buy, 94%/90% lower variants exist) and extreme volatility (5/5 on Relax Gaming’s scale).

The base game features a Respin feature where matching symbols can become sticky and trigger respins, with multipliers accumulating on persistent symbols. The main attraction is the Money Cart Bonus Round, triggered by landing 3 or more bonus scatters on a starting 6×4 grid. The bonus features over 20 special symbol types including the Arms Dealer (exchanges bonus symbols for feature symbols), Upgrader (gives features a persistent edge), Unlocker (reveals additional rows expanding the grid up to 6×8), Reset (refills the spin counter), Persistent Collector Payer, Adjacent Payer, Tommy Gun Sniper, and Necromancer. The combination of expanding rows, persistent symbols, and feature interactions can chain into spectacular payouts. The 150,000x cap is genuinely achievable through optimal symbol interactions, though Relax Gaming estimate the probability at roughly 1 in 94 million spins. A pick for high-variance specialists rather than casual players.

Hand of Anubis

Hacksaw Gaming’s dark Egyptian cluster pays slot rejects the genre’s typical bright golden aesthetic in favour of an underworld setting where two jackal-headed Anubis statues flank the grid. The 5×6 grid uses cluster pays where 5 or more matching symbols connecting horizontally or vertically form a winning combination, with cascading reels clearing wins for fresh symbols. Stakes range from £0.10 to £100 per spin, with a 96.24% default RTP (94.32%/92.28%/88.41% lower variants) and high volatility (5/5). Max win sits at 10,000x the stake.

The Soul Orb wild system drives the multiplier mechanics. Red and Blue Soul Orbs can land randomly in the base game, both functioning as wilds with progressive multipliers. The Red Orb’s multiplier increases by +1 for every symbol in a winning cluster (favouring large clusters), while the Blue Orb’s multiplier increases by +1 per cluster regardless of size (favouring consecutive cascades). Two free spins rounds offer different gameplay paths. The Underworld Free Spins (3 scatters, 129x feature buy at 96.29% RTP) introduces a multiplier accumulation system where active multipliers can climb to 9,999x. The Judgement Free Spins (4 scatters, 200x feature buy at 96.18% RTP) uses a hold-and-win format with skull modifier blocks, Anubis skulls, ice blocks, and crusher blocks that combine multipliers in increasingly elaborate patterns. Distinctive theming and genuinely original mechanical design.

9 Pots of Gold Megaways

Gameburger Studios (under Games Global) brings its Irish luck-themed slot to the Megaways engine with this 2022 release. The 6-reel dynamic grid produces between 64 and 117,649 ways to win on every spin, set against a green clover-strewn Irish countryside backdrop. Stakes range from £0.20 to £50 per spin, with a 96.10% default RTP (94%/92%/86% lower variants exist) and high volatility. Max win sits at 5,000x the stake.

The Epic Strike feature is the standout mechanic. Three to nine Pot of Gold scatter symbols anywhere on the reels trigger instant cash prizes ranging from 2x to 4,000x the bet, with the prize value increasing dramatically as more pots land. The Free Spins round triggers separately when 4, 5, or 6 GOLD scatters land in view, awarding 10, 15, or 20 free spins respectively. The progressive Win Multiplier within free spins starts at 1x and increases by +1x with each Rolling Reels win, with no upper cap and no resets between free spins (the multiplier does not, however, apply to Epic Strike scatter prizes). Special Gold Coins can also land during free spins, with every 4 collected awarding +4 additional spins. A Win Booster (doubles bet for higher trigger frequency) and feature buy options round out the mechanics where regulations permit.

Check out the free spins, deposit matches, and many other bonuses available on our full list of NetBet promo codes.