Bonanza Megaways is the game that launched an entire genre: the original 2016 Megaways slot, where cascading reels and an unlimited multiplier create genuine explosive potential. High volatility and an iconic mining theme keep it feeling fresh years later.
Bonanza Megaways is an online slot released by Big Time Gaming in 2016 that made history: it was the first slot to feature the Megaways mechanic, and since then the licensed mechanic has spread to hundreds of games from other studios. The gold-mine theme, cascading reels and an unlimited multiplier on the free spins made it an instant classic. In this review we go through how the game works, what its enormous win potential is built on and who it's for.
Bonanza Megaways – game info
RTP and bet figures are the provider's stated defaults. Some casinos offer a lower-RTP version of the game, so check the figure in the game's info screen before you play. The win cap varies by source, because the multiplier is unlimited – the most commonly stated maximum win is around 12,000× your stake.
Features – what the game offers
Bonanza Megaways slot review
Bonanza Megaways takes the player to a gold-rush-era mining site. In the background rises a quarry with hills, waterfalls and wooden shacks, and a mine-cart track runs above the reels, rattling in new symbols. The graphics aren't cutting-edge – the game already dates from 2016 – but they've aged well: the style is rugged and atmospheric, never cheap. The soundtrack leans on a rhythmic banjo that speeds up as the cascades roll and builds genuine tension. The whole thing is spare but polished, and it fits its theme perfectly.
The game mechanic was groundbreaking in its day. This is a six-reel Megaways slot, where 2–7 symbols drop onto each reel and the number of ways to win changes from spin to spin, all the way up to 117,649 ways. A horizontal reel above the reels, along with the mine carts, adds symbols to reels 2–5, which increases the number of ways even further. Wins are formed when matching symbols land on consecutive reels from left to right – not on fixed lines, but on Megaways logic.
The heart of the game is the Reactions mechanic: after every win the winning symbols explode away and new symbols cascade in from above and from the right. The chain continues as long as new wins keep forming, so a single spin can produce several consecutive hits. When the G-O-L-D letters land on the reels as scatter symbols, 12 free spins begin. Now the game shows its teeth: the win multiplier increases by one with every single cascade and has no ceiling. During one long cascade chain the multiplier can climb into the tens, and this is exactly where Bonanza's legendary big wins come from. Extra scatters during the free spins award more spins, giving the multiplier even more room to grow.
Bonanza Megaways is a high-volatility game, and it keeps that promise. The base game can feel lean for a long time and your balance can drift downward, until the free spins hit and the unlimited multiplier does its work. The maximum win is most commonly stated at around 12,000× your stake, but because the multiplier is unlimited, the theoretical ceiling varies by source – some list figures even higher. In practice this is a game where most of the wins come from rare but big free-spins rounds, not from a steady base game.
Bonanza's significance also shows in how large a family has grown up around it: Extra Chilli, Bonanza Billion and countless Megaways games from other studios descend directly from this original idea. Bonanza, though, is still the purest blueprint in the series. Thanks to the €0.20–500 bet range the game bends to both cautious low-stake play and big bets, and the RTP stays the same regardless of stake size. The original version has no buy feature, so the free spins have to be earned with scatters – for some players that's a plus, for others a minus.
Who is the game for? Bonanza Megaways is an excellent choice for a player who can handle high volatility and appreciates the tension an unlimited multiplier brings. It rewards the patient player who's willing to wait for the free spins. If instead you're after steady wins or low-variance, relaxed play, this isn't the game for you – the base game is spare and the empty stretches are long. In their Bonanza experiences, players most often praise exactly the multiplier cascades of the free spins and that feeling when the chain just keeps going and going.
Bonanza Megaways earns its place in the slot history books. It's not just a good game – it's the game that defined an entire generation of mechanics. High volatility, an unlimited multiplier and a genuinely original mining theme make it a game you keep coming back to years later. The Klinq editorial rating: 4.4 / 5.
Where to play Bonanza
Bonanza Megaways is available at almost every casino, but withdrawal speed and taxation determine where it's worth playing. Below are three casinos operating on a tax-free licence – each with its own strength. Taxation is determined by the licence: winnings from MGA- and EU/EEA-licensed casinos are tax-free.
18+ · Play responsibly. Casino links are commercial. A game is not an investment – only play with money you can afford to lose.