
20+ years in the gambling industry including 13+ years playing and reviewing slots.
Looking for slot sites with the potential for progressive jackpot wins? Megapays slots might just be your next go-to. These progressive jackpot games add an extra layer of excitement to standard slot mechanics.
Real-Time Megapays Mega Jackpot: £401,653.10
In this guide, I'll break down how Megapays jackpots work, which games offer them, and where you can play them for real money. You’ll also find free slot demos for each Megapays game.
Where to Play for Real Money
You’ll find Megapays slots at several trusted UK slot and casino sites. All licensed and regulated by the UK Gambling Commission, with responsible gaming tools and mobile compatibility for Megapays play on the go, below are some of the most reputable options:
- No. of slots 1000+
- Payout speed Instant Options
- Win rate 96.5%
- Mobile-first Casino With Instant Withdrawals
- 6 minute withdrawals
- No. of slots 1500
- Payout speed 24 hours
- Win rate Variable
- UK-only Casino With 24/7 Customer Support
- Quick & Free Withdrawals
- No. of slots 2500+
- Payout speed 24 Hours
- Win rate Variable
- Huge Casino Game and Slot Selection
- World-Renowned Brand
- No. of slots 3750+
- Payout speed Instant Options
- Win rate Variable
- Exclusive Slots & Instant Withdrawals
- iOS & Android Casino Apps
- No. of slots 2900
- Payout speed Instant - 24 Hours
- Win rate 95.98%
- Superb New Slot Selections
- Instant Withdrawals
All Megapays Slots
Slot Game | Provider | RTP | Volatility | Max Win (x Bet) | Minimum Bet | Release Date |
---|---|---|---|---|---|---|
Bonanza Megapays | Big Time Gaming | 96.40% | Medium-High | 17926 | £0.20 | 07/06/2021 |
Who Wants to be a Millionaire Megapays | Big Time Gaming | 96.38% | High | 72310 | £0.40 | 25/08/2021 |
Star Clusters Megapays | Big Time Gaming | 96.27% | High | 27050 | £0.20 | 30/03/2022 |
The Great Pigsby Megapays | Relax Gaming | 96.19% | Medium | 20000 | £0.20 | 05/04/2022 |
Danger High Voltage Megaways | Big Time Gaming | 96.18% | High | 39600 | £0.20 | 27/07/2022 |
The Megapays line-up is built on top-tier titles from slot providers Big Time Gaming and Relax Gaming, known for their innovation and popularity. Here is a run-down of all Megapays slots currently available:
1. Bonanza Megapays (Big Time Gaming)

Real-Time Jackpot: £401,653.10
- RTP: 96.4%
- Max Win: 17,926x
- Volatility: Medium-High
- Stakes: 20p to £5
- Release Date: 7 June 2021
The iconic Bonanza Megaways meets the jackpot twist in Bonanza Megapays. With 6 reels and up to 117,649 ways to win, you can spin away from 20p per spin (just like in the original game).
With the same graphics, soundtrack and medium to high volatility, it comes with Reactions, which can lead to successive wins. In the Free Spins feature, you start with a minimum of 12 free spins plus a 1x win multiplier. With each win/reaction, the win multiplier rises by 1, with no limits.
With 17,926 x bet max wins, it comes with a 96.4% RTP rate: this is higher than the original, but 9.6% of that return is reserved for the progressive jackpots.
2. Who Wants to be a Millionaire Megapays (Big Time Gaming)

Real-Time Jackpot: £401,653.10
- RTP: 96.38%
- Max Win: 72,310x
- Volatility: High
- Stakes: 40p to £5
- Release Date: 25 August 2021
Packed with suspense, Who Wants to be a Millionaire Megapays is the jackpot version of the official branded slot inspired by the television series. With 6 reels and up to 117,649 ways to win, the minimum bet is 40p per spin.
With Reactions for continuous wins, the tension ramps up in the Free Spins feature, where you can sit in the ‘Hot Seat’ to begin with extra free spins. Just like in the TV game show, you can use lifetimes to win more free spins. Beginning with up to 50 free spins, there is a win multiplier that only increases (and with no limits). Additional and infinite free spins can also be won.
With the lure of the Megapays jackpots, it comes with a 96.38% RTP rate and 72,310 x bet max wins: making it the highest-paying Megapays slot. For reference, Who Wants to be a Millionaire Megaways is the original version.
3. Star Clusters Megapays (Big Time Gaming)

Real-Time Jackpot: £401,653.10
- RTP: 96.27%
- Max Win: 27,050x
- Volatility: High
- Stakes: 20p to £5
- Release Date: 30 March 2022
Star Clusters Megapays is a 4x4 grid slot that uses the Megaclusters engine: a supercharged Cluster Pays mechanic basically. You can play from 20p per spin.
With Reactions, winning symbols split into smaller symbols for another chance to win. There is a Gold Wild Multiplier symbol that contains a 1x multiplier: when 1 or more are part of a win, the multiplier increases by 1 and carries on rising as long as the Gold Wild Multiplier symbol is involved in winning clusters.
In the Free Spins feature, you get 2 free spins plus 1 free spin for every Reaction beyond the 5th. All Gold Wild Multiplier values are carried over, with more free spins awarded when it reaches multiples of 10. You’ll also play on an 8x8 grid with up to 256 symbols.
With the Megapays feature triggering randomly, it comes with a 96.27% RTP rate and 27,050 x bet max wins. The original game, Star Clusters Megaclusters, has a 96.54% RTP rate and 23,960 x bet max win potential.
4. The Great Pigsby Megapays (Relax Gaming)

Real-Time Jackpot: £401,653.10
- RTP: 96.19%
- Max Win: 20,000x
- Volatility: Medium
- Stakes: 20p to £5
- Release Date: 5 April 2022
Set in the golden age of film, The Great Pigsby Megapays is a classy game with 6 reels and up to 117,649 ways to win. Playable from 20p a spin, it comes with plenty of bonus features.
Randomly during base game spins, up to 5 reels will become fully wild with multipliers (known as the Wild Respin feature): the multiplier values multiply each other for even bigger wins. Also with high-value Pigsby symbols being added randomly during the respins, the Free Spins feature sees you collect Envelope Scatters which, in turn, award extra free spins and remove low-value symbols from play.
With 20,000 x bet max wins and a 96.19% RTP rate, it has the added advantage of the Megapays jackpots. Relax Gaming has a Dream Drop version with bigger jackpots, but max wins can only reach 810 x bet. The Megaways version also offers 20,000 x bet wins but no jackpots.
5. Danger High Voltage Megapays (Big Time Gaming)

Real-Time Jackpot: £401,653.10
- RTP: 96.18%
- Max Win: 39,600x
- Volatility: High
- Stakes: 20p to £5
- Release Date: 27 July 2022
A cult favourite transformed into a jackpot beast best describes Danger High Voltage Megapays. This high-energy slot is inspired by Electric Six’s song of the same name and has 6 reels and 4,096 ways to win. You can play from 20p per spin.
Key to the gameplay is the My Desire Scatter, with 3 or more giving you the choice of 2 free spins features. The Gates of Hell free spins come with sticky wilds, which can lead to extra free spins. In the High Voltage free spins, there are High Voltage Wild reels with multipliers up to 66x when lit: you can also win unlimited extra free spins.
With Megapays jackpots, it comes with a 96.18% RTP rate and 39,600 x bet max wins. The original slot, Danger High Voltage, offers 15,746 x bet payouts. In October 2024, Big Time Gaming released Danger High Voltage 2: it has a 96.64% RTP rate and 52,980 x bet max win potential.
What are Megapays Slots?
Megapays slots are a series of online slot games that are linked to a shared progressive jackpot system called Megapays. Unlike fixed jackpot slots, these games contribute to a growing prize pool that players across multiple casinos and slot sites can win at any time.
The Megapays system was developed by Big Time Gaming (BTG) and has been licensed out to Relax Gaming. What sets Megapays apart is that the jackpot mechanic has been added to popular, existing games, so you get familiar gameplay with the added thrill of a big win opportunity.
The key feature? 4 progressive jackpots: Mini, Midi, Major and Mega.
All Megapays games are built around popular slot titles, but with the added tension and excitement of shared, pooled jackpots. If you’ve ever played games like Bonanza Megaways or Danger High Voltage, their Megapays versions offer the same gameplay, but with much higher jackpot potential.
How do Megapays Jackpots work?
Megapays jackpots are triggered at random with no special symbols or specific bet sizes required. Once you're in the Megapays feature, you’ll head to Las Vegas and enter a hold-and-spin style game where only special Megapays symbols land. Here’s a quick breakdown:
- A random trigger can launch the Megapays feature on any spin, regardless of your bet size.
- You’re awarded respins where you aim to land the chosen Megapays symbol.
- The more symbols collected, the higher up the Megapays Ladder you climb.
- Collect 15+ to win the Mega Jackpot which is worth £401,653.10.
To win the Megapays jackpots, you need to collect a certain number of Megapays symbols. The prizes are as follows:
Megapays Jackpot | Number of Megapays Symbols | Minimum Jackpot Value (Seed) |
---|---|---|
Mini | 4-7 | £100 |
Midi | 8-11 | £1,500 |
Major | 12-14 | £20,000 |
Mega | 15+ | £300,000 |
Progressive Pooled Prizes: These jackpots grow as players across all Megapays-linked games contribute a small slice of each spin into the overall pool.
Shared Jackpot Network: Multiple games contribute to the same pot, meaning you’re not limited to just one game when chasing the Mega prize.
This model works similarly to other popular progressive systems (like WowPot or Mega Moolah), but Megapays slots stand out thanks to the quality of the gameplay, offering big wins even outside the jackpots.
RTP Contribution
As with all progressive jackpot slots, Megapays games come with an RTP rate. However, up to 9.6% of the RTP rate is reserved for the Megapays jackpots:
Megapays Slot | RTP | Jackpot Contribution | Actual RTP |
---|---|---|---|
Bonanza Megapays | 96.40% | 9.60% | 86.80% |
Who Wants to be a Millionaire Megapays | 96.38% | 9.44% | 86.94% |
Star Clusters Megapays | 96.27% | 9.60% | 86.67% |
The Great Pigsby Megapays | 96.19% | 9.44% | 86.75% |
Danger High Voltage Megaways | 96.18% | 9.44% | 86.74% |
Megapays Pros & Cons
Whilst it's recommended you play Megapays slots, there are some downsides to consider. I’ve broken it down for you:
Pros
- Progressive jackpots can be won playing at any bet level
- Based on high-quality, popular slot games
- 4 jackpots up for grabs with the Mega Jackpot paying at least £300,000
- High max win potential (excluding jackpots)
Cons
- Not as many games as other jackpot networks (only 5 Megapays games to choose from)
- High jackpot contribution RTP rate (9.44% to 9.6%)
- Mega Jackpot is lower than the more popular jackpot slots
Final Thoughts
Megapays slots are a brilliant fusion of top-tier slot design and the excitement of pooled, progressive jackpots. Whether you’re spinning for fun or chasing the Mega Jackpot, these games bring tension, thrills, and the chance of something big landing at any moment.
They're best suited to players who enjoyed the original games and don’t mind riding out cold streaks for the chance at hot wins. If that sounds like you, Megapays is well worth exploring.
More Progressive Jackpot Networks
Are you a fan of progressive jackpot slots? My in-depth guide highlights the top 10 jackpot games with reviews, free demos and real-time jackpot trackers. As well as information on the biggest jackpot wins, there are links to various jackpot network guides, including:

The Best Mega Moolah Slots & Slot Sites

Guide to WowPot Slots & Slot Sites

Dream Drop Jackpot Slots Guide & Winners
