Best Big Time Gaming Slots, Casinos & Free Demos
Since launching in 2011, Big Time Gaming (BTG) has earned its place as one of the most innovative slot providers for UK players, mostly through its pioneering Megaways mechanic. Let’s take a look at some of the best Big Time Gaming slots, how you can try them, and where you can play for real.
Best Big Time Gaming UK Casinos
With the invention of the Megaways and Megapays systems, top Big Time Gaming slots are featured in almost all of the best UK slot sites . Here are our top recommend Big Time Gaming casinos offering players a huge selection of BTG slots:
See the key factors behind the iGN Rating for 32Red Casino:
- Safety Index = Excellent – Mr Vegas is licensed by the UK Gambling Commission, offers multiple responsible gambling tools and upholds protocols in terms of data encryption and player protection policies. It is therefore a trusted and safe place for UK casino players.
Advantages: Vast games library of over 8,000 games from 175 providers, a double welcome bonus, customer friendly tools such as search functions and filters, a weekly reward offer for existing players, 24 hour support and a strong brand identity.
Disadvantages: Limited bonus offers, withdrawal fees for more than one withdrawal, no dedicated app and could use more table games.
Minimum deposit: £10
General number of games: 8326
Payment speed: Usually between 24 – 48 hours
Free spins: 11 Free Spins on the Pink Elephants 2 slot
100% Deposit Bonus Up To £50 + 11 Free Spins
See the key factors behind the iGN Rating for BetMGM:
- Safety Index = Excellent – BetMGM Casino is licensed by the UKGC and provides strong encryption. Extensive documentation and tools are available for Responsible Gambling.
Advantages: Large live game selection, with exclusive tables and Las Vegas dealers, 24/7 customer support via live chat, and fast withdrawals. The welcome bonus comes with low wagering requirements (1x).
Disadvantages: No Phone or Email support, lack of promotions for existing players, not many payment methods available.
Minimum deposit: £10
General number of games: 3000+
Payment speed: Instant to 3 days
Free spins: 200 Free Spins on Big Bass Splash
Bet £10, get 200 Free Spins – no wagering
See the key factors behind the iGN Rating for Grosvenor Casino:
- Safety Index = Excellent – Grosvenor Casino is fully licensed by the UKGC, adheres to eCOGRA standards, and provides robust responsible gambling tools. With top-tier security measures in place, it stands out as one of the safest online casinos.
- Advantages: The low £5 minimum deposit (except for PayPal), a wide range of promotions including live dealer offers, exclusive live games streamed from Grosvenor’s land-based casinos, and a strong reputation as a trusted UK brand since 1970.
- Disadvantages: Limited withdrawal options with only four available, Live Chat support restricted to 07:00 – 22:30, and a relatively modest welcome bonus capped at £30.
Minimum deposit: £5
General number of games: 1000
Payment speed: Instant to 3 days
No deposit bonus: Grand Prize Wheel
Play with £40 when you deposit £20
Top 10 Big Time Gaming Slots Online
Here are the 10 best Big Time Gaming games ranked by our experts and the top btg casinos to find each game.
| BTG Slot Name | RTP | Max. Win | Where to Play |
| Monopoly Megaways | 96.50% | 14,700x | Play at PlayOJO |
| Bonanza Megaways | 96% | 26,000x | Play at LeoVegas |
| Extra Chilli Megaways | 96.82% | 20,000x | Play at PlayOJO |
| Lil Devil | 96.43% | 50,000x | Play at NetBet |
| Danger High Voltage | 95.67% | 10,800x | Play at PlayOJO |
| Big Bucks Deluxe | 96.28% | 89,600x | Play at Grosvenor |
| White Rabbit Megaways | 97.24% | 17,420x | Play at 7bet |
| Max Megaways | 96.37% | 139,030x | Play at LeoVegas |
| Millionaire Megaways | 96.32% | 20,000x | Play at BetMGM |
| Castle of Terror 2 | 96.48% | 20,160x | Play at Grosvenor |
1. Monopoly Megaways
🎰 Monopoly Megaways Demo & Full Review
This Big Time Gaming Megaways slot is based on the classic much-loved board game Monopoly. You can hit up to 117,649 ways to win, and the RTP sits at 96.50%. Features like the “Reel Adventure” board tracking Mr Monopoly around squares (GO, Utilities, Railways) add a strategic aspect to the game. Combined with a medium-high volatility, Monopoly Megaways offers a fresh vision on online slots. In our opinion, it’s the best Big Time Gaming slot to play.
Key Features:
- 96.50% RTP – High Volatility
- Official Monopoly-themed slot
- 117,649 ways to win
- Property collection and free spins with unlimited multipliers
2. Bonanza Megaways
🎰 Bonanza Megaways Demo & Full Review
One of the earliest and most iconic Big Time Gaming games, Bonanza was the breakthrough Megaway success. This gold-mine themed BTG slot offers up to 117,649 ways to win and features cascading wins, free spins, high volatility, big potential payouts. Many consider this to be the original and best btg slot.
Key Features:
- 96.00% RTP – High Volatility
- Iconic Big Time Gaming Megaways slot
- Cascading wins
- Free Spins with multipliers
3. Extra Chilli Megaways
🎰 Extra Chilli MegawaysDemo & Full Review
Following the Megaways format, Extra Chilli adds spicy visuals, high volatility and features like free spins and multipliers. The RTP for this one is 96.19%, right above the 96% standard. The theme is fun, easy to pick up and the bonus feature gives an extra dimension – probably the most vibrant top Big Time Gaming slot.
Key Features:
- 96.82% RTP – High Volatility
- Mexican street market theme
- Free Spins with unlimited multipliers
- Gamble feature for bigger rewards
4. Lil’ Devil
🎰 Lil’ Devil Demo & Full Review
This game deviates a little from the pure Megaways format (it uses 4,096-ways and 6 reels) but keeps the BTG slot signature of high volatility and layered feature choice. Features include dual free spin modes (“Be My Angel” sticky wilds vs “Dynamite Lover” cascading multipliers) and a “Heartstopper” enhanced mode. Vibrant theme, rock-inspired visuals, and a high-risk, high-reward gameplay!
Key Features:
- 96.43% RTP – High Volatility
- Angel vs. Devil theme with iconic soundtrack
- Two Free Spins features plus Heartstopper Enhanced Spins
- 50,000x max win
5. Danger High Voltage
🎰 Danger High Voltage Demo & Full Review
Next up on our list of the best Big Time Gaming slots is Danger High Voltage. It comes with 4,096 ways to win, stacked wild multipliers, two free spin bonus types, and jackpot tiers. The RTP is quite low, at 95.67%, which is a bit disappointing, especially since it’s combined with high volatility. The two bonuses, Gates of Hell Free Spins with sticky wilds or High Voltage Free Spins with up to a 66x multiplier, make up for that RTP.
Key Features:
- 95.67% RTP – High Volatility
- High-energy visuals and soundtrack
- Two free spins bonuses with sticky wilds and multipliers
- Max win potential of 10,800x your bet
6. Big Bucks Deluxe
🎰 Big Bucks Deluxe Demo & Full Review
The Big Time Gaming game Big Bucks Deluxe brings out the bling side of traditional slot machines, mixed with tons of features . This high-volatility slot offers a 96.28% RTP and the potential to win up to a huge 89,600x your stake. Expect the trademark BTG slot signature, from cascading wins and vibrant visuals to feature-packed free spins, all wrapped in a classic money-themed design that keeps every spin exciting and rewarding.
Key Features:
- 96.28% RTP – High Volatility
- Classic money and luxury theme
- Max win potential of 89,600x your stake
- Cascading wins and feature-rich bonus rounds
New Big Time Slots Releases
Here are the latest and upcoming releases from the BTG slots catalogue:
| BTG Slot Name | RTP | Volatility | Release Date |
|---|---|---|---|
| Christmas Megapots™ | 96.29% | High | 1 December 2025 |
| Monopoly Deluxe Megaways | 96.84% | High | 6 January 2026 |
| Monopoly Rush Hour | 96.58% | High | 3 February 2026 |
| Millionaire Megapots | 96.58% | High | 4 March 2026 |
| Monopoly Megapots | 96.45% | High | 9 April 2026 |
Big Time Gaming Megaways Slots
Big Time Gaming completely redefined online slots with its groundbreaking Megaways mechanic, which offers up to 117,649 ways to win. Every spin changes the reel layout, giving you a dynamic, unpredictable game experience that feels fresh each time. BTG Slots like Monopoly Megaways are some of the best online games for UK players, showcasing the system at its best: fast-paced, full of potential, and loaded with cascading reels and multipliers.
What’s made BTG’s Megaways slots so iconic is that they combine this mechanic with inventive themes and high volatility, ensuring every spin can go from modest to massive in seconds. It’s no exaggeration to say Megaways reshaped modern slot gaming. Some of the most popular Megaways games include:
- Monopoly Megaways
- Bonanza Megaways
- Extra Chilli Megaways
- Who Wants to Be a Millionaire Megaways
- Temple Quest Megaways
Big Time Gaming’s Megapays Slots
Following the success of Megaways, Big Time Gaming took things one step further with Megapays, a progressive jackpot system that adds an extra layer of excitement to some of its biggest titles.
These top Big Time Gaming slots, such as Danger High Voltage Megapays and Bonanza Megapays, keep all the trademark features of the originals but add four jackpot tiers:Mini, Midi, Major, and Mega. Each spin has the potential to trigger one of these life-changing prizes, making every round even more thrilling. Megapays successfully blends the unpredictability of Megaways with the universal appeal of jackpots, cementing BTG’s reputation as one of the most innovative developers in the industry. Popular Megapays games include:
- Bonanza Megapays
- Who Wants to Be a Millionaire Megapays
- Star Clusters Megapays
- Danger High Voltage Megapays
About Big Time Gaming
Big Time Gaming was founded in 2011 in Sydney, Australia, and quickly established itself as one of the most innovative names in online slot development. Known for pioneering the revolutionary Megaways mechanic, BTG transformed modern slot gameplay and inspired countless collaborations across the industry. In 2021, the studio was acquired by Evolution, joining a powerhouse group alongside NetEnt and Red Tiger.
Here is some key information about Big Time Gaming:
| Founded | 2011 |
| Headquarters | Australia |
| Licensed | UK Gambling Commission, Malta Gaming Authority, Alderney Gambling Control Commission, eCOGRA |
| Games | Slots, Tapcards |
| Countries | Global distribution via operator network (details not publicly broken down) |
| Operators | 350+ operators worldwide |
| Markets | Regulated online casino markets (UK, Europe) and growing worldwide |
| Known For | – Innovative gameplay mechanics, including the Megaways system – High volatility slots |
Awards & Nominations
Big Time Gaming is a global force, and the creation of the Megaways system gave it a nice place among top slots providers. Here are a few nominations and awards BTG has received in the past few years:
| Year | Award/Nomination | Category |
|---|---|---|
| 2026 | Global Gaming Awards | Best Supplier – Shortlisted |
| 2025 | Kongebonus Awards | Best Sequ‑uib Slot for Danger High Voltage 2 – Nominated |
| 2024 | SBC Awards | Casino/Slots Developer of the Year – Shortlisted |
| 2023 | Bigwinboard Awards | Provider of the Year – Nominated |
| 2022 | GAM3 Awards | Won Game of the Year Award and Best Adventure Game for BTG’s Big Time |
| 2022 | Bigwinboard Awards | Provider of the Year – Nominated |
| 2017 | Casinomeister Awards | Best iGaming Software Experience for Bonanza (1st) and Danger High Voltage (2nd) |
Other Slots Providers
If you’re a fan of Big Time Gaming online slots, here are some other providers you might like.
Play'n GO 
Pragmatic Play 
Relax Gaming 
Blueprint Gaming Big Time Gaming Slots UK FAQs
Who owns Big Time Gaming?
Big Time Gaming is privately held. It was founded by Nik Robinson in 2011 and has grown through partnerships and acquisition (by Evolution Gaming) while maintaining its own studio.
Is Big Time Gaming licensed in the UK?
Yes, their games appear at UK-licensed casinos under the regulation of the UK Gambling Commission via the operator’s licence.
What are the typical RTPs for Big Time Gaming slots UK?
Many Big Time Gaming titles carry RTPs around the 96% mark or slightly above, with some titles reaching 96.5%+.
Do Big Time Gaming slots have high volatility?
BTG is known for high volatility and large payout potential. Features like the Megaways system, cascading wins, and multipliers all contribute to higher risk/higher reward profiles.
What is the best Big Time Gaming casino?
The best Big Time Gaming casino is Mr Vegas with over 80 BTG slots available. BetMGM is also a great BTG casino with over 60 Big Time Gaming slots to choose from.