Big Time Gaming casino sites (UK)
Big Time Gaming casino games come with features like the groundbreaking Megaways mechanic and some of the most volatile, high-payout slots in the iGaming world. Licensed by the UK Gambling Commission, BTG supplies nearly every major UK online casino with innovative, fair-play games that can deliver five-figure wins in a single spin.
Best Big Time Gaming Casino sites
| Casino | Special Information | More Information | Visit This Casino |
|---|---|---|---|
| 1 Read Review | | 1st Deposit Bonus and Free Spins 150% up to 150 £ 0 Free Spins Game Developers  | |
| 2 Read Review | | 1st Deposit Bonus and Free Spins up to 30 £ 0 Free Spins Game Developers | |
| 3 Read Review | | 1st Deposit Bonus and Free Spins - 200 Free Spins Game Developers | |
| 4 Read Review | | 1st Deposit Bonus and Free Spins 100% up to 200 £ 0 Free Spins Game Developers |
Big Time Gaming at a glance
- Founded: 2011 (Sydney, Australia)
- Key People: Nik Robinson (CEO), Huw McIntosh (CTO)
- Ownership: Part of Evolution Group (since 2021)
- UK Licence: Remote Gambling Software, UKGC
- Catalogue Size: 40 slots (low volume, high impact)
- Flagship Mechanic: Megaways (up to 117,649 ways-to-win)
Big Time Gaming casino benchmarks timeline highlights
| Year | Milestone |
|---|---|
| 2016 | Megaways debuts in Dragon Born, then explodes in popularity with Bonanza. |
| 2017 | White Rabbit introduces Feature Drop (bonus buy outside the UK) and a record RTP of ≈ 97.7%. |
| 2018 | Extra Chilli perfects “gamble for spins” and cements BTG as a high-volatility icon. |
| 2020 | MegaClusters mechanic launches in Star Clusters. |
| 2021 | Evolution acquires BTG; Megapays progressive-jackpot network rolls out. |
Core Big Time Gaming casino mechanics
Megaways
Dynamic reels create 2–7 symbols per reel on every spin, producing up to 117,649 ways and cascading “reaction” wins for chain payouts.
MegaClusters
Winning symbols split into four mini symbols, expanding the grid and enabling successive cluster wins.
MegaQuads
Four sets of reels run simultaneously; special features can merge them for colossal wins.
Megapays
Four-tier progressive jackpots shared across a network of branded BTG titles.
Win Exchange
UK-compliant alternative to bonus buys: trade big base-game wins for a shot at free spins instead of purchasing them outright.
Big Time Gaming casino Megaways slots
What Is Megaways?
Megaways is Big Time Gaming’s patented reel-modifier that randomises the number of symbols on each reel every spin. With six reels (sometimes seven) that can display 2 – 7 symbols each, the grid produces up to 117,649 ways to win. When reels expand beyond seven rows (e.g. White Rabbit up to 12 high) the ways can exceed one million.
- Dynamic Ways: reel height is chosen independently on every spin.
- Cascading Wins: winning symbols explode and new symbols fall, creating chain reactions.
- Unlimited Multipliers: most free-spin rounds add +1 per cascade with no roof.
- Horizontal “Top Reel”: a sliding reel above/below reels 2-5 adds extra symbols for longer chains.
Megaways timeline
| Year | Release / Event | Milestone |
|---|---|---|
| 2015 | Dragon Born | First ever Megaways slot (117 649 ways) |
| 2016 | Bonanza Megaways | Mechanic goes mainstream; UK streamers fuel viral growth |
| 2018 | Open-Licence Model | BTG licences IP to Blueprint → Megaways boom |
| 2019 | Monopoly Megaways | First branded Megaways + board-progress bonus |
| 2021 | 200+ Megaways titles live | Every major supplier now offers Megaways variants |
| 2023 | Megaways patent extended to 2037* | Keeps BTG licencing revenue flowing for the next decade |
*Based on new-mechanic continuations filed with the UK IPO.
How many ways? Quick maths
Ways per spin = product of symbol counts per reel. Example Bonanza spin: 4-6-7-6-6 symbols → 4 × 6 × 7 × 4 × 6 × 6 = 24 192 win ways for that single spin.
Top BTG-developed Megaways slots
| Slot | Year | Max Ways | RTP (%) | Volatility | Max Win × |
|---|---|---|---|---|---|
| Bonanza Megaways | 2016 | 117 649 | 96.00 | High | 12,000 |
| Extra Chilli Megaways | 2018 | 117 649 | 96.82 | High | 20,000 |
| Who Wants to Be a Millionaire MW | 2018 | 117 649 | 96.24 | Very High | 72,310 |
| White Rabbit Megaways | 2019 | Up to 588×12) | 97.24 | High | 13,000 |
| Lil Devil | 2019 | NA | 96.43 | High | 40,960 |
| Monopoly Megaways | 2019 | 117 649 | 96.50 | High | 14,700 |
| Wild Flower | 2022 | 117 649 | 96.52 | High | 114,000 |
| King of Cats | 2023 | 117 649 | 96.72 | High | 56,620 |
| Pirate Pays Megaways | 2024 | 117 649 | 96.23 | High | 20,500 |
| Castle of Terror | 2025 | 117 649 | 96.65 | Very High | 100,000 |
Why Megaways slots resonate with UK Players
- Dynamic unpredictability: every spin feels unique because reel heights change.
- Balanced math: long base-game lifespans but explosive bonus potential.
- Fast learning curve: paylines are irrelevant – matching symbols left-to-right is intuitive.
- Safer-gambling friendly: wide stake bands from 10p up to £20 cover all bankrolls.
Beyond BTG: Licensed Megaways highlights
BTG rents the engine to 50+ studios. UK fan favourites include:
- Pragmatic Play – The Dog House Megaways
- Blueprint – Fishin’ Frenzy Megaways
- Red Tiger – Gonzo’s Quest Megaways
All licensed titles pay royalties back to BTG and must pass UKGC game-math certification identical to BTG originals.
Future of Megaways games
BTG continues to evolve the IP with hybrid engines:
- MegaClusters × Megaways: rumoured cross-mechanic in development.
- PowerReels + Megaways: 8-reel experiments for higher ways count.
- VR Demo: internal prototype showcased at ICE London 2025.
Top Big Time Gaming casino slots
| Slot | Mechanic | RTP | Max Win | Why Play It |
|---|---|---|---|---|
| Bonanza | Megaways | ≈ 96 % | ≈ 26,000× | Original Megaways classic; unlimited win multiplier in free spins. |
| Extra Chilli | Megaways | ≈ 96.8 % | ≈ 20,000× | Spicy sequel with gamble-for-spins feature. |
| White Rabbit | Megaways | ≈ 97.7 % | ≈ 13,000× | Expanding reels to 248,832 ways; top-tier RTP. |
| Danger High Voltage | 4096 Ways | ≈ 95.7 % | ≈ 20,000× | Two bonus modes, x11 roaming wilds & sticky wilds. |
| Lil’ Devil | 4096 Ways | ≈ 96.4 % | 50,000×+ | “Heartstopper” enhanced spins after 40 hearts collected. |
How BTG compares to other top slot providers
| Provider | Main Strengths | Signature Games | Volatility Focus |
|---|---|---|---|
| Big Time Gaming | Mechanics innovation; high RTP; huge potential | Bonanza, Extra Chilli, White Rabbit | High / Extreme |
| NetEnt | Polished graphics; mainstream appeal | Starburst, Gonzo’s Quest | Low–Medium |
| Play’n GO | Frequent releases; franchise series | Book of Dead, Reactoonz | Low–High mix |
| Pragmatic Play | High volume; varied features | Gates of Olympus, The Dog House Megaways | Medium–High |
| Nolimit City | Edgy themes; ultra-high max wins | San Quentin, Tombstone RIP | Very High / Insane |
Playing BTG slots in the UK
- Available at virtually every UK-licensed casino (bet365, William Hill, LeoVegas, Ladbrokes, Betfair, Sky Bet, and others).
- All games certified by the UK Gambling Commission for fairness and RNG integrity.
- Demo play usually offered after age verification – a risk-free way to learn Megaways or MegaClusters.
- Responsible-gambling tools (deposit limits, time-outs, reality checks) fully supported.
Big Time Gaming casino slot catalogue
All RTP values show the highest-available UK file. Most titles also ship with 94% and 92% packs – always check the “i” panel in-game as RTP variations may occur from casino to casino.
| Slot | Year | Top RTP (%) | Volatility | Max Win × | Signature Mechanic |
|---|---|---|---|---|---|
| Bonanza Megaways | 2016 | 96.00 | High | 12 000 | Original Megaways |
| Extra Chilli Megaways | 2018 | 96.82 | High | 20 000 | Feature Drop |
| White Rabbit Megaways | 2019 | 97.24 (97.72 buy) | High | 13 000 | Extending Reels |
| Danger High Voltage | 2017 | 95.97 | High | 15 746 | Six-Reel 2 × 6 Wilds |
| Who Wants to Be a Millionaire MW | 2018 | 96.24 | Very High | 72 310 | Free-Spin Gamble Ladder |
| Monopoly Megaways | 2019 | 96.50 | High | 14 700 | Board-Progress Spin Trail |
| Lil Devil | 2019 | 96.43 | High | 40 960 | Heartstopper Mode |
| Donuts | 2018 | 96.54 | Medium-High | 40 000 | 4×4 Symbol Blocks |
| Holy Diver Megaways | 2019 | 96.54 | Medium-High | 20 121 | Level-Up Reel Set |
| Star Clusters MegaClusters | 2021 | 96.34 | High | 23 000 | MegaClusters |
| Cyberslot MegaClusters | 2021 | 96.36 | High | 23 960 | Re-Spins + Roaming Wild |
| Chocolates | 2020 | 96.60 | High | 65 536 | Scatter Boxes |
| King of Cats | 2023 | 96.72 | High | 56 620 | Dual Mode (Lion/Puma) |
| Pirate Pays Megaways | 2024 | 96.23 | High | 20 500 | Bootstrap Wheel |
| Gold Megaways | 2023 | 96.42 | High | 20 200 | Win-Exchange |
| Wild Flower | 2022 | 96.52 | High | 114 000 | Enhanced Free Spins |
| Castle of Terror | 2025 | 96.65 | Very High | 100 000 | Holy Water Wilds |
| The Race Megaways | 2024 | 96.43 | High | 66 670 | Cluster Wild Respins |
| Over the Moon | 2024 | 96.55 | High | 13 570 | Rocket Multipliers |
| Big Bad Bison | 2024 | 96.07 | Medium-High | 25 810 | Roaming Wild Stack |
UK Regulation & Fair-Play Overview
UKGC Compliance
- Licence: Big Time Gaming games are distributed under Evolution AB’s Remote Software Licence
039-638-R-319409-011. - RTP File Sets: Every title ships with three certified return tables (≈96 %, ≈94 %, ≈92 %), visible in the UK “Help-Paytable”.
- Game IDs: Each BTG release includes a unique
UKGCGameIDtag (e.g.,BTG-BONANZA-01-EN) to aid operator reporting. - Feature Buy Restrictions: Where bonus buys are disabled by the UKGC, BTG delivers a “Win Exchange” alternative that converts base wins into free-spin entries.
Independent Testing
All RNG seeds and Megaways shufflers are certified by eCOGRA & Gaming Labs International. Latest certificate renewal: .
Safer-Gambling Tooling
- Session clocks & reality-check pop-ups every 60 minutes.
- Customisable stake caps and spin-speed restrictions in the UK build (2.5 s minimum).
- Progressive-win warnings at 1 000× bet.
Big Time Gaming Milestone Timeline
| Year | Key Event | Impact for UK Players |
|---|---|---|
| 2011 | Studio founded in Sydney by Nick Robinson & Huw McIntosh | BTG licence applications begin with the UKGC |
| 2016 | Bonanza Megaways launches | Megaways mechanic debuts, 117 649 ways → industry-wide hit |
| 2017 | Book of Gods introduces Feature Drop buy-bonus | First regulated bonus-buy in the UK market |
| 2018 | Extra Chilli Megaways & Who Wants to Be a Millionaire Megaways | Megaways IP licensed to other suppliers (Blueprint, Pragmatic) |
| 2019 | White Rabbit sets record 97.72 % RTP with bonus buy | High-RTP debate triggers UKGC notice on configurable files |
| 2020 | Evolution AB acquires Big Time Gaming for €450 m | BTG content integrated into all Evolution-partnered UK casinos |
| 2021 | MegaClusters mechanic launches in Star Clusters | Cluster-pay slots approved under UK remote technical standards |
| 2023 | King of Cats ships with Player-Selectable RTP packs | First dual-game mode (Lion vs. Puma) in a single Megaways grid |
| 2024 | Pirate Pays Megaways & Big Bad Bison | Introduction of “Bootstrap” bonus-wheel for UK safer-gambling |
| 2025 | Castle of Terror reaches 100 000× certified max-win | BTG’s biggest potential payout approved by UK test labs |
Key takeaways
- Innovation First: BTG’s mechanics (Megaways, MegaClusters) changed modern slot design.
- High Volatility & RTP: Games regularly exceed 96 % RTP while offering 10,000×+ max wins.
- Quality over Quantity: A small catalogue, but nearly every title is a blockbuster.
- UKGC-Licensed: Fully compliant slots, complete with responsible-gambling tools.
- Part of Evolution: BTG now benefits from Evolution’s resources while retaining creative independence.
Whether you’re chasing a Megaways mega-hit or exploring new mechanics like MegaClusters, Big Time Gaming delivers some of the most exciting, high-potential slots available to UK players today.
Big Time Gaming Casino sites FAQs
Chris Vaughan is a Senior Writer and Editor at GamblingAuthority. He has more than 18 years of experience in the iGaming industry and has great knowledge of game developers, trending games and casino research.
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