This guide covers online casinos available to Irish players that feature Big Time Gaming (BTG) games in their library. Big Time Gaming (BTG) is an Australian developer (now part of Evolution Group) that invented the Megaways mechanic, which it licences to dozens of other providers. BTG operates a smaller catalogue of its own titles but has enormous industry influence.
About Big Time Gaming (BTG)
Founded in 2011 and headquartered in Sydney, Australia, Big Time Gaming (BTG) has built a reputation for inventing the Megaways mechanic — the most influential slot innovation of the 2010s. Their games are available at hundreds of casinos worldwide, including many that accept Irish players.
Top Big Time Gaming (BTG) Titles
- Bonanza Megaways — The original Megaways slot; gold mine theme; cascading wins and free spins
- Extra Chilli Megaways — BTG classic with Buy Bonus feature
- White Rabbit Megaways — Alice in Wonderland theme; unique feature-length free spins
- Chocolate Cash Pots — Newer BTG title; popular with casual players
- Millionaire — New Daily Jackpot mechanic from BTG
What to Look for in a Big Time Gaming (BTG) Casino
When choosing a casino specifically for Big Time Gaming (BTG) games, check that the full catalogue is available (not just selected titles), that RTP information is displayed in the game's information panel, and that the casino holds a reputable licence (MGA, UKGC, or Gibraltar). Demo play (free play) for Big Time Gaming (BTG) games should ideally be available without registration.
Licensing and Fairness
Big Time Gaming (BTG) games are tested by independent certification labs (eCOGRA, iTech Labs, GLI, or BMM) before distribution. Each title must pass RNG certification. The RTP figures published by Big Time Gaming (BTG) reflect the results of these certified tests. No Irish casino currently holds a GRAI gaming licence — casino licences are expected 2027–2028.
Playing Big Time Gaming (BTG) Games on Mobile
Big Time Gaming (BTG) develops all games in HTML5, ensuring compatibility across iOS and Android without additional downloads. Game loading speeds and graphical quality on mobile are equivalent to desktop. Some titles include portrait mode for one-handed play.
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Frequently Asked Questions
BTG Megaways Mechanics: How They Work
| Feature | What it means | Impact |
|---|---|---|
| Megaways (variable reels) | Each spin: 2–7 symbols per reel randomly | Up to 117,649 ways to win |
| Cascading wins | Winning symbols removed; replaced from above | Multiple wins from one spin |
| Unlimited multiplier | Each cascade adds +1× to a running multiplier | Free spins can reach 100×+ |
| Scatter symbols | Trigger free spins (usually 3+) | Free spins with multiplier reset or retained |
| Buy feature | Pay to enter free spins instantly | 500–2000× stake cost; not available everywhere |
Big Time Gaming (BTG) created the Megaways mechanic, which is now licensed to dozens of other providers (including Red Tiger, Blueprint and Pragmatic Play). The original BTG Megaways titles include Bonanza and Extra Chilli. BTG is MGA-licensed.
BTG Top Titles: What to Expect
- Bonanza: The original Megaways slot. 6 reels, up to 117,649 ways. Free spins triggered by gold mine cart scatters. Unlimited multiplier builds through cascades. High variance — sessions can be very long between big wins.
- Extra Chilli: Similar mechanic to Bonanza. Chilli scatter triggers free spins. The "gamble" feature allows wagering free spins for more spins (risk of losing all). Very popular.
- Who Wants to Be a Millionaire Megaways: Licensed quiz show theme. Phone-a-friend and ask-the-audience bonus features. Good for fans of the show.
- Variance note: All Megaways slots are inherently high variance due to the max-ways mechanic. Bankroll should be sized for many losing sessions before a significant win.
Yes. Big Time Gaming created and patented the Megaways mechanic, first used in Bonanza (2016). The mechanic is now licensed to Pragmatic Play, Red Tiger, Blueprint, and many others.
Yes. Evolution Group acquired Big Time Gaming in 2022, adding it to a portfolio that includes NetEnt, Red Tiger, and Ezugi.
Bonanza Megaways has a published RTP of 96.0%. It is high volatility with a maximum win of approximately 10,000x stake.
No. GRAI issued only remote betting licences in 2026. Casino gaming licences are expected 2027–2028. Irish players use MGA, UKGC, or Gibraltar-licensed casinos.
Dog House Megaways RTP Ireland
The Dog House Megaways (by Pragmatic Play using BTG's Megaways licence) has an RTP of 96.55%. Very high volatility. Up to 117,649 ways to win via Megaways mechanic. Free spins triggered with 4+ scatters -- sticky wild multipliers during free spins that increase by x1 on each win. Maximum win: 12,305x stake.
| Stat | Value |
|---|---|
| RTP | 96.55% |
| Variance | Very high |
| Max ways | 117,649 |
| Max win | 12,305x stake |
| Free spins trigger | 4+ scatters |
| Feature | Sticky wild multipliers (increase per win) |
Bonanza Megaways RTP Ireland
Bonanza by BTG (the original Megaways slot) has an RTP of 96.00%. Very high volatility. 6 reels, up to 117,649 ways to win. Free spins triggered by landing GOLD on the top reel in sequence (G-O-L-D). Unlimited win multiplier during free spins that increases by 1x on each cascade win -- the core driver of large wins. Maximum win: uncapped in theory but practically 10,000-25,000x stake in strong sessions.
Written by Mark Craic, editor at CraicBet with 8 years in gambling analytics. See how we review.